Secure Dropbox Alternatives Comparison Chart* SpiderOak Wuala Tresorit Mega.co.nz Sync.com TeamDrive Yes – AES-256 in CFB Yes – 256-bit symmetric key (CFB AES- 256 Yes – AES-128 Yes – 256-bit AES Yes – 256-bit symmetric Client-side encryption mode and HMAC-SHA256 mode) Transit encryption Yes – SSL Yes Yes – TLS Yes – TLS Yes – SSL SSL Server-side encryption Yes Yes Yes Yes Yes Server location US EU EU EU/NZ Canada EU Number of devices Unlimited Unlimited 3 / 5 / 10 Unlimited Unlimited Unlimited OS Mac/Windows/Linux Mac/Windows/Linux Mac/Windows Mac/Windows/Linux Mac/Windows Mac/Windows/Linux File sharing Yes Yes – Business only Yes Yes Yes Yes Permission handling Yes Yes Yes No Yes Yes Mobile apps Yes Yes Yes Yes Yes Yes 2-factor authenticfication No No Yes – Business only No No No Version history Yes Yes Yes – Premium and Business only No Yes Yes Activity history Limited N/A Yes – 7 days / 90 days / unlimited No N/A N/A Encrypted links Password protection Password protection Yes No Password protection No Folder sync Yes Yes Yes Yes Yes Yes Automatic backup Yes Yes Yes No Yes Yes HIPAA compliant Yes No Still in progress (FIPS 140-2 compliant)No Yes No Max. file size Unlimited 100 GB 0.5 GB / 2 GB / 2 GB Unlimited Unlimited N/A Free storage Yes – 2 GB No Yes – 3 GB Yes – 50 GB 5 GB 2 GB PRO I: 9.99€/500GB/1TB bandwidth/month Professional: Personal: Premium: 12.50$/month PRO II: 19.99€/2TB/4TB Teamdrive Pro: Pricing 10$/month/100GB 12.50$/100GB/month Pro: 49$/500GB/year Business: 25$/month/user bandwidth/month 30$/50GB/month Business: 5$/month/user Business: 465$/5 user/year PRO III: 29.99€/4TB/8TB bandwidth/month Web Site More info More info More info More info More info More info * the full article can be found here: http://www.cloudwards.net/dropbox-alternatives/ Yes – 256-bit symmetric.