I have been a CrashPlan user for 3 years now and my current subscription is about to expire. In general I am happy with CrashPlan and I would most like continue to subscribe if it wasn't such a huge pain to pay for it if you don't own a Credit Card. So before I go through the trouble of begging friends of mine to use their card again, I was wondering if one of you guys maybe knows a different service, that would fit my needs.
My needs in general are simple:
- Complete zero knowledge. Meaning the backup provider at no point in time has access to my encryption key and will only ever see encrypted data
- Access to past versions of all backed up files of at least the past year
- Possibility to pay via PayPal, GiroPay, Wire Transfer, or pretty much anything that isn't a credit card
- Nice to have: Ability to sync files/data between devices (Windows PC and Android smartphone)