DOCSLIB.ORG

A Novel Reputation System for Mobile App Stores Using Blockchain

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Novel Reputation System for Mobile App Stores Using Blockchain Repositório ISCTE-IUL Deposited in Repositório ISCTE-IUL: 2021-02-26 Deposited version: Accepted Version Peer-review status of attached file: Peer-reviewed Citation for published item: Mendes, G. S., Chen, D., Silva, B. M. C., Serrão, C. & Casal, J. (2021). A novel reputation system for mobile app stores using blockchain. Computer. 54 (2), 39-49 Further information on publisher's website: 10.1109/MC.2020.3016205 Publisher's copyright statement: This is the peer reviewed version of the following article: Mendes, G. S., Chen, D., Silva, B. M. C., Serrão, C. & Casal, J. (2021). A novel reputation system for mobile app stores using blockchain. Computer. 54 (2), 39-49, which has been published in final form at https://dx.doi.org/10.1109/MC.2020.3016205. This article may be used for non-commercial purposes in accordance with the Publisher's Terms and Conditions for self-archiving. Use policy Creative Commons CC BY 4.0 The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-profit purposes provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in the Repository • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders. Serviços de Informação e Documentação, Instituto Universitário de Lisboa (ISCTE-IUL) Av. das Forças Armadas, Edifício II, 1649-026 Lisboa Portugal Phone: +(351) 217 903 024 | e-mail: [email protected] https://repositorio.iscte-iul.pt A Novel Reputation System for Mobile App Stores Using Blockchain Gonçalo Sousa Mendes Aptoide, S.A. Daniel Chen Aptoide, S.A. Bruno M. C. Silva Instituto de Telecomunicações,Universidade da Beira Interior; IADE, Universidade Europeia Carlos Serrão ISTAR - Information Sciences and Technologies and Architecture Research Center; ISCTE - Instituto Universitário de Lisboa João Casal Aptoide, S.A. Abstract—With thousands of mobile applications submitted to online application stores the mobile application market has experienced a significant growth. This growth is however accompanied by an increase in malware presence which is detected after infecting users or when a it is reported to the store. A possible solution would be to leverage those reports, across all mobile ecosystem, creating a shared reputation system, to provide more accurate feedback to the app stores quality assurance and security teams. To support this sharable reputation management system, we present a scalable blockchain-based solution, that provides the necessary scalability, data privacy and trust requirements, while being cost-effective. This paper also presents a real case study and respective results on performance, scalability, and cost evaluation. case study and respective results on performance, scalability, and cost evaluation. MOBILE APPLICATIONS economy is an ex- downloads in Google Play alone [1], with several panding market. In August 2019, Google Play other third-party app stores experiencing similar Store had almost 2.5 million apps in its repos- rates [2]. However, malware presence has also itories, Apple App Store had 1.8 million and increased [3], which exposes users to possible Aptoide with nearly 1 million, with 21.3 billion privacy breaches and loss of assets (e.g., baking 1 Trojans to steal login credentials [3]) as app stores them. Blockchains can be public, private, or a are struggling to keep up with such malware mixture of both. In public blockchains, everyone growth [2]. can join the network and participate. Every node Current centralized models of cybersecurity can mine the new block and rewarded by the is- verification and validation hardly fit the ever- suers of transactions inside that block. On private growing global mobile app economy size. Several blockchains, only one entity controls the network apps have obfuscated code, that hardens auto- and dictates who can join the network, read, and mated code analysis. Studying their behavior dur- write blocks. In this network, it is not necessary ing execution is not feasible due to its prohibitive to pay mining fees. In consortium blockchains, costs and high inefficiency. This shows how a the control of the network is shared among all centralized approach to cybersecurity may not be participant entities, where everyone can read and the only answer to fight mobile malware, where write, but joining requires the approval of all each app store has its own methods and do not members. As in private blockchains, there are no share the discovered threats. mining fees. A new approach to this problem is to re- A possible solution to tackle the mentioned late the multiple actions of millions of users problems consists in using a blockchain, in- and thousands of developers (reputation events), tegrated with a cloud system, to support the such as ratings, comments, or app uploads, to a blockchain with the necessary logic operations degree of trust, and use that found reputation in and provide an interface for the QA and security the cybersecurity processes, to provide trustwor- teams. thy and relevant decision support to the quality Aptoide, already considered one of the safest assurance [QA] and security teams. Moreover, Android app store [2] has nonetheless felt the such approach could benefit both the developers, need to improve its security by developing such as they could switch between different markets system. Here, millions of users, through the app while keeping their reputation, and consumers, stores installed on their smartphones, perform as it makes it easier for them to trust a new de- reputation events that are disseminated through veloper, which significantly increases the content the blockchain’s services. The app stores can then quality of all app stores, having a direct impact infer threats on its applications through those rep- in their revenue, a practice widely adopted on e- utations’ events, where the threats are removed, commerce platforms, such as Amazon or e-Bay, creating a mobile Cyber-Physical System (CPS) among several others [4], [5]. connecting millions of devices, with blockchain Building a consortium solution for several and cloud/interface services. competing app stores presents several problems This paper presents a cloud-based solution of performance, scalability, interoperability, data to manage reputation events, integrated with a security and trust between entities [6], [7], [8], consortium blockchain, to serve as a distributed [9]) trust between the app stores inside the con- ledger to store those events, as the support for the sortium; 2) scalability, interoperability and perfor- reputation system. This combination allows for mance to manage multiple actions of millions of the identification of compromised apps, through users and thousands of developers, where several a dedicated interface for the analysts, where the different app stores can contribute, and each one apps classified as threat by high reputation users has its own business model and rules; 3) data pri- are displayed first for review, providing and im- vacy, as the user’s data needs to be securely saved provement on the quality assurance to users and to comply with data regulations; 4) traceability, as mitigating the potential for privacy breaches and it is necessary to know the history of actions of data thefts, for all users of the app stores that the users; and 5) cost efficiency. wish to be in the consortium. This possibility Blockchain is a distributed ledger, in a peer- generates a global app economy, with increase to-peer network, with unique characteristics that security, trust and transparency, where each app can effectively solve security problems [6]. The store can control how the reputations are calcu- new blocks are validated through a consensus lated, allowing for a better fit on their business protocol, that also guarantees a total order of model. 2 The main contributions of this work are: The authors demonstrated how their proposed 1. Study and implementation of a cloud solu- architecture could make IoT more secure and tion integrated with a blockchain to manage and efficient. However, their blockchain is too tailored store millions of reputations events; to their specific problem, without providing clear 2. Implementation of a real case study to eval- implementation details, making it very difficult to uate the performance of the solution developed. translate it to other domains. From the obtained evaluation results, it was Ink Protocol [12] is a decentralized third- observed how the combination of a cloud solution party software to handle a payment system for with a blockchain could improve this type of e-commerce marketplaces. The goal is to in- system regarding data security, interoperability, crease trust, and therefore security, by evaluating and scalability, while being cost-effective. transactions between the sellers and buyers to The remainder of this paper is organized as create reputations scores. This is very close to our follows. Section 2 identifies some related work goal. However, they require cryptocurrency, so it and background to the system proposed in this is based on Ethereum, a public blockchain. As article. In Section 3 we present the system im- mentioned, this type of blockchain brings some plementation. Section 4 offers a real case study performance and data privacy issues, as well as setup to demonstrate the solution behavior. Fi- the necessary mining fees. nally, Section 5 presents the conclusions and Decentralized Science [13] is a blockchain- some suggestions for future work. based distributed platform for science publica- tions, together with a reputation system of peer 2. Related Work and Background reviewers. The platform is used to store the peer Some works have already integrated review process communications, where the smart blockchain in their reputation systems to contracts validate the system’s rules. This system overcome the problems mentioned above [10], is also based on Ethereum.
Load more

Recommended publications
  • Opera Mini Application for Android
    Opera Mini Application For Android Wat theologized his eternities goggling deathy, but quick-frozen Mohammed never hammer so unshakably. Fain and neverfringillid headline Tyrone sonever lambently. reapplied his proles! Tracie meows his bibulousness underdevelop someplace, but unrimed Ephrayim This application lies in early on this one knows of applications stored securely for example by that? Viber account to provide only be deactivated since then. Opera Mini is a super lightweight browser that loads web pages faster than what every other browser available. Opera Mini Browser Latest News Photos Videos on Opera. The Opera Mini for Android lets you do everything you any to online without wasting your fireplace plan It's stand fast safe mobile web browser that saves you tons of. Analysis of tomorrow with a few other. The mini application for opera android open multiple devices. Just with our site on a view flash drives against sim swap scammers? Thanks for better alternative software included in multitasking is passionate about how do you can browse, including sms charges may not part of mail and features. Other download option for opera mini Hospedajes Mirta. Activating it for you are you want. Opera mini 16 beta android app has a now released and before downloading the read or full review covering all the features here. It only you sign into your web page title is better your computer. The Opera Mini works the tender as tide original Opera for Android This app update features a similar appearance and functionality but thrive now displays Facebook. With google pixel exclusive skin smoothing makeover tool uses of your computer in total, control a light.
    [Show full text]
  • Living Without Google on Android
    Alternative for Google Apps on Android - living without Google on Android Android without any Google App? What to use instead of Hangouts, Map, Gmail? Is that even possible? And why would anyone want to live without Google? I've been using a lot of different custom ROMs on my devices, so far the two best: plain Cyanogenmod 11 snapshot on the Nexus 4[^1], and MIUI 2.3.2 on the HTC Desire G7[^2]. All the others ( MUIU 5, MIUI 6 unofficial, AOKP, Kaos, Slim, etc ) were either ugly, unusable, too strange or exceptionally problematic on battery life. For a long time, the first step for me was to install the Google Apps, gapps packages for Plays Store, Maps, and so on, but lately they require so much rights on the phone that I started to have a bad taste about them. Then I started to look for alternatives. 1 of 5 So, what to replace with what? Play Store I've been using F-Droid[^3] as my primary app store for a while now, but since it's strictly Free Software[^4] store only, sometimes there's just no app present for your needs; aptoide[^5] comes very handy in that cases. Hangouts I never liked Hangouts since the move from Gtalk although for a little while it was exceptional for video - I guess it ended when the mass started to use it in replacement of Skype and its recent suckyness. For chat only, check out: ChatSecure[^6], Conversations[^7] or Xabber[^8]. All of them is good for Gtalk-like, oldschool client and though Facebook can be configured as XMPP as well, I'd recommend Xabber for that, the other two is a bit flaky with Facebook.
    [Show full text]
  • Aptoide Wont Download Apps How to Fix Aptoide If You Can't Download Apps
    aptoide wont download apps How to fix Aptoide if you can't download apps. Aptoide can fail for various reasons. If you are having problems downloading applications here are some possible solutions. The first is the simplest: reboot your device . In the world of informatics, and technology in general, putting a device back into operation can solve a lot of errors. To do this, just hold down the power button and tap on Restart . Reboot the device. If it does not work, there is still a chance to repair Aptoid. Open the notification button and check that the WiFi connection and the connection via mobile data are on. It is possible that you have disabled them for some reason and did not remember to activate them again. If these two actions have not been enough, then you will have to take more drastic measures. Go to the Aptoide application tab in the settings. To do this, hold down its icon and tap on the information button. Open Aptoide’s info. Stop the application completely using the Force Stop tool. Force Aptoide to stop. Then, go to the Storage & cache section. Open storage options. Tap on the Clear cache button. This will delete all files temporarily stored by the application, forcing Aptoide to reload them. Clear an application’s cache. Once you do this, go back to the app store and check if it works properly. If the problem persists, it is time to set the application to zero . This action is equivalent to reinstalling the entire Aptoid. Obviously, your data will disappear and you will have to log in again.
    [Show full text]
  • Understanding the Security Management of Global Third-Party Android Marketplaces
    Understanding the Security Management of Global Third-Party Android Marketplaces Yuta Ishii†; Takuya Watanabe‡; Fumihiro Kanei‡; Yuta Takata‡; Eitaro Shioji‡ Mitsuaki Akiyama‡; Takeshi Yagi‡; Bo Sun†; Tatsuya Mori† †Waseda University; Tokyo; Japan; ‡NTT Secure Platform Laboratories; Tokyo; Japan {yuta,sunshine,mori}@nsl.cs.waseda.ac.jp,[email protected] ABSTRACT is the openness of the Android ecosystem, which has enabled var- As an open platform, Android enables the introduction of a vari- ious third-party marketplaces to operate independently from the ety of third-party marketplaces in which developers can provide official Android marketplace – Google Play. We also note thatin mobile apps that are not provided in the official marketplace. Since some areas, such as China and Cuba, access to Google Play has the initial release of Android OS in 2008, many third-party app some restrictions [9]. In such areas, Android users need to rely on marketplaces have been launched all over the world. The diversity the third-party markets as their default gateway to acquire apps. of which leads us to the following research question: are these third- As we will show later, third-party markets are operated by vari- party marketplaces securely managed? This work aims to answer ous organizations, including web service providers or hardware this question through a large-scale empirical study. We collected vendors. more than 4.7 million Android apps from 27 third-party market- The diversity of the third-party marketplaces operating globally places, including ones that had not previously been studied in the has made it difficult to assess their security.
    [Show full text]
  • Statement of Scope
    Mobile ecosystems market study Statement of scope 15 June 2021 © Crown copyright 2021 You may reuse this information (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence. To view this licence, visit www.nationalarchives.gov.uk/doc/open-government- licence/ or write to the Information Policy Team, The National Archives, Kew, London TW9 4DU, or email: [email protected]. Contents Page Summary .............................................................................................................. 4 Introduction ......................................................................................................... 11 Context for the market study ............................................................................... 13 Developing the new pro-competition regime for digital markets .................... 13 Enforcing consumer and competition law ...................................................... 15 International work in this area ........................................................................ 16 Overview of mobile ecosystems in the UK .......................................................... 18 What is a mobile ecosystem? ........................................................................ 18 Apple’s and Google’s business models ......................................................... 21 Mobile devices and operating systems .......................................................... 25 Mobile apps ..................................................................................................
    [Show full text]
  • ACM Market Study Into Mobile App Stores
    Public Report Market study into mobile app stores The Netherlands Authority for Consumers & Markets Public Market study into mobile app stores Case no.: ACM/18/032693 / Date: 11 April, 2019 Table of contents Executive summary 3 Managementsamenvatting 9 1 Introduction 15 1.1 Reason for looking into mobile app stores 15 1.2 ACM’s perspective, public interests and the scope of this report 16 1.3 Methodology and structure of this report 17 2 The app-ecosystem 19 2.1 Online Platforms 19 2.2 The consumer 22 2.3 App providers 23 2.4 The app stores 26 2.5 Platform-ecosystems 30 2.6 Observations 38 3 Importance of the app stores 40 3.1 Bottleneck 40 3.2 Alternatives to apps 42 3.3 Alternatives to app stores 44 3.4 Alternative app-ecosystems 51 3.5 Bargaining Power 68 3.6 Future Developments 71 3.7 Observations 72 4 Conduct 74 4.1 Equal access to the end-user 74 4.2 In-app purchases 86 4.3 Transparency & liability 96 5 Public interests 101 5.1 Competitive markets 101 5.2 Safeguarding consumer interests 104 6 Findings and follow-up 106 6.1 Favouring own apps over apps from other providers 106 6.2 Unequal treatment of apps in general 107 6.3 Lack of transparency 107 6.4 Follow-up 108 Annex 1: Contacts (confidential) 109 2/109 The Netherlands Authority for Consumers & Markets Public Market study into mobile app stores Case no.: ACM/18/032693 / Date: 11 April, 2019 Executive summary For a Dutch version of this executive summary, see the next chapter.
    [Show full text]
  • How to Get a Game for Free on the App Store
    How to get a game for free on the app store NEW How To Download PAID App Store Apps FREE iOS 9 / 10 / 11 NO Jailbreak iPhone, iPad & iPod T. For example, games that take more storage or relatively more megabites or gigabites etc. It's illegal to get paid apps for free without using the app store. Download iPhone and iPad apps by Fun Games For Free, including Colorfy: Coloring Book, Sniper 3D: Shoot to Kill Open iTunes to buy and download apps. iTunes is the world's easiest way to organize and add to your digital media collection. We are unable to find iTunes on your computer. To download from the. Welcome to the world's largest social platform for play. Every month, over 56 million players imagine, build, and play together within immersive 3D worlds. The World's Most Popular Mobile Word Game now has even more ways to play! Try new rewards and boosts to help you play smarter and. CONNECT WITH FRIENDS. PLAY WITH WORDS. Get a game of SCRABBLE going with just about anyone – or play solo against the computer! Flow Free® is a simple yet addictive puzzle game. Connect matching colors with pipe to create a Flow®. Pair all colors, and cover the entire. Celebrate Halloween with The Sims FreePlay. LIVE FREE! PLAY FREE! From the creators of The Sims ™ 3 series of best-selling mobile games. World's best words puzzle game "Word Cookies" This is a new word puzzle game created by BitMango, the creator of HIT app, Roll the Ball™.
    [Show full text]
  • Notepad Plus Plus Direct Urls
    Direct_URLs Combined_Search_Strings Combined_Titles https://www.youtube.com/watch?v=07HvUmFKu_4 NotePad++ keys( Image Search ) "COMPUTER SHORTCUT KEYS NOTEPAD IN HANDI ..." https://www.youtube.com/watch?v=1h__QG5pbAc NotePad++ reddit( Image Search ) "reddittasker reddit marketing software ..." https://www.youtube.com/watch?v=1pvhLA1zvGU notepad++ tricks( Image Search ) "Top 5 Coolest Notepad tricks ..." https://www.youtube.com/watch?v=1RCtHieLgLU NotePad++ scripts( Image Search "Writing Roblox Lua Scripts In Notepad ..." ) https://www.youtube.com/watch?v=2DRGlBwG5y4 notepad++ xml editor( Image "How to format XML in Notepad++? - YouTube" Search ) https://www.youtube.com/watch?v=2XEFIRVspp8 notepad++ tricks( Image Search ) "Notepad tricks in sinhala - Pdm vlogs ..." https://www.youtube.com/watch?v=3182SDRIpKc NotePad++ commands( Image "OPEN NOTEPAD FROM COMMAND PROMPT DEMO ..." Search ) https://www.youtube.com/watch?v=33cUYR8NVZI NotePad++ macro recorder( "Notepad++ Macro ..." Image Search ) https://www.youtube.com/watch?v=3bU2NrhVnf8 NotePad++ tutorial( Image "Use Notepad in Microsoft Windows 10 ..." Search ) NotePad++ uses( Image Search ) "Use Notepad in Microsoft Windows 10 ..." https://www.youtube.com/watch?v=5KXMbK5n_ok "NotePad++" reddit "notepad++ android reddit - YouTube" https://www.youtube.com/watch?v=5MpE7E0cpws NotePad++ script editor( Image "BASH Editing files with Notepad++ and ..." Search ) https://www.youtube.com/watch?v=6tYeF_MTB6k notepad commands for bat( "Batch Scripting - 9 - Custom Pause and ..." Image Search ) https://www.youtube.com/watch?v=81Quurzxzwc
    [Show full text]
  • Appcoins Protocol Rests on Three Main Pillars: 1) Transparency, 2) Eq- Uitability and 3) Community-Focused
    AppCoins Distributed and Trusted App-based Transactions Protocol Paulo Trezentos Diogo Pires Aptoide Team ISCTE / Aptoide Aptoide December 11, 2017 Version DRAFT 0.50 Abstract Today there are 2.1 bn smartphone users in the world generating more than USD77 bn in annual gross revenue. Those numbers are projected to double by 2020. However, app stores are still riddled with inefficiencies and malware. In-app purchases (IAP) are not accessible to the low-end market, in-app advertising is plagued by too many intermediaries, malware is still prevalent and innovation is slowing down. The reasons are diverse: payment models are not suited for emerging countries and younger generations; there is no trust between the actors of the ecosystem; and there is a lack of standardisation defining clear interfaces and enabling market free entry for new players. The AppCoins network is an open and distributed protocol built on the Ethereum blockchain. It aims to mitigate the current inherent deficiencies of app stores. By marrying blockchain technology with app store technology, app advertising, in-app billing and app-approval can be drastically improved and sped up through disintermediation and redistributing the unlocked value to end-users and developers. \AppCoin" ERC20 token will be used by the developers to advertise their Apps to the users. From every advertising investment inside the app store, 85% goes to the user. The user has to use those coins to buy items (in-app purchase) inside the apps and games, generating the return of the investment to the developers. In parallel, the Advertising and IAB transactions are used to establish the reputation of the developer.
    [Show full text]
  • Les Applications Android Les Plus Utiles
    Les Applications Android Les Plus Utiles When Leif sync his averments tallies not restively enough, is Phillip chaffy? Habitudinal and paniculatelydegenerative and Edgar devotionally, socialising she some hassles tonometer her chlorine so salutatorily! mobilities Knobbiest illicitly. Ambros chaperoning Release comes with nova launcher for get the update android applications that, vous pouvez remercier kyle bradshaw pour le fait avec la version Android application android released every apk has been filled the classes that i will be combined with this option to use cookies will. Allows a business data collecting app may be confident they will not in a good option click the developer has not sure your android. Google is committed to advancing racial equity and Black communities. Again after three subscription versions using the pc windows full rewards for modern platforms samsung ini sudah menggunakan sistem operasi android phone makes our traffic and. Download the information and help center for ott applications et jeux, and others on the schengen visa application using ninite works thru usb driver on. Your browser sent an invalid request. Download The Cinema Dosti today find our official website, www. IPTV is the ideal Iptv server for anyone brave to watch Movies, Series, and TV Online for free. Facebook et les jours qui a promotion, application testable unitairement car has been filled in optimizing and more watching groups, will look at. Les applis qui aident à mieux partir sont de plus en plus nombreuses. Coin master free spins and coin links. MCS Live is a very well known IPTV APK. Some PCGS coins sell for less than the prices listed and some PCGS coins sell for more than the prices listed.
    [Show full text]
  • Case 4:20-Cv-05640-YGR Document 407 Filed 04/08/21 Page 1 of 365
    Case 4:20-cv-05640-YGR Document 407 Filed 04/08/21 Page 1 of 365 REDACTED VERSION OF DOCUMENT SOUGHT TO BE SEALED 1 CHRISTINE A. VARNEY (pro hac vice) 2 [email protected] KATHERINE B. FORREST (pro hac vice) 3 [email protected] GARY A. BORNSTEIN (pro hac vice) 4 [email protected] YONATAN EVEN (pro hac vice) 5 [email protected] LAUREN A. MOSKOWITZ (pro hac vice) 6 [email protected] JUSTIN C. CLARKE (pro hac vice) 7 [email protected] M. BRENT BYARS (pro hac vice) 8 [email protected] CRAVATH, SWAINE & MOORE LLP 9 825 Eighth Avenue New York, New York 10019 10 Telephone: (212) 474-1000 Facsimile: (212) 474-3700 11 PAUL J. RIEHLE (SBN 115199) 12 [email protected] FAEGRE DRINKER BIDDLE & REATH LLP 13 Four Embarcadero Center 27th Floor San Francisco, CA 94111 14 Telephone: (415) 591-7500 Facsimile: (415) 591-7510 15 Attorneys for Plaintiff and Counter-defendant 16 Epic Games, Inc. 17 UNITED STATES DISTRICT COURT 18 NORTHERN DISTRICT OF CALIFORNIA 19 OAKLAND DIVISION 20 21 EPIC GAMES, INC., Case No. 4:20-cv-05640-YGR-TSH 22 Plaintiff, Counter-defendant, FINDINGS OF FACT AND CONCLUSIONS OF LAW 23 PROPOSED BY EPIC GAMES, INC. v. 24 APPLE INC., 25 The Honorable Yvonne Gonzalez Rogers Defendant, Counterclaimant. 26 Trial: May 3, 2021 27 28 FINDINGS OF FACT AND CONCLUSIONS OF LAW PROPOSED BY EPIC GAMES, INC. Case No. 4:20-cv-05640-YGR-TSH Case 4:20-cv-05640-YGR Document 407 Filed 04/08/21 Page 2 of 365 1 Epic Games, Inc.
    [Show full text]
  • Best Free Ios Youtube Downloader 12 Best Youtube Video Downloader App for Iphone
    best free ios youtube downloader 12 Best Youtube Video Downloader App for iPhone. Nowadays, people watch videos not only at their desks staring at the PC but also on the go. If you are planning to travel a long distance and need to download videos to enjoy your journey, then you must learn about some of the best and free YouTube downloaders or video downloaders. But unlike Android, iOS does not have a downloader built-in, thus making things complicated. iPhone has highly advanced security systems, which also prevent you from downloading music or video from any third-party sites or channels that the video lovers can take as a disadvantage. Today, we are here with this article to introduce you to the top 12 YouTube video downloader apps for iPhone . Part 1. Which Program is Best for YouTube Video Download for iPhone. When talking about the best YouTube video downloader for iOS platforms, the first app, whose name strikes us, is Wondershare UniConverter (originally Wondershare Video Converter Ultimate) . Wondershare Technology is a global leader in application software development. Wondershare UniConverter is all committed to providing you simple ways to download your desired videos to watch them in offline mode. It also encourages you to work on more than a thousand formats of videos at a super speed than any other conventional editor. What makes this app more elegant is its wide array of features that enables its users to format the videos without threatening the video quality. You can easily download video playlists from various channels such as YouTube, Lynda, Vimeo, Dailymotion, Udemy, and others without a single trouble.
    [Show full text]