Storm4 - Secure cloud storage app for iPhone and iPad

Storm4 is the secure cloud storage service that stands out:

You only pay for what you use. We decided to say "no" to unfair tiered pricing systems.

• With us you get a utility-style pricing system, which means you only pay for what you use.
• Use as little or as much storage as you want.
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The files you store in the cloud are encrypted using strong keys that only you know and control.​​

• This means nobody can read the content you put in the cloud, unless you explicitly share it with them.
• Not us. Not hackers. Not overreaching government agencies.
• So breathe a sigh of relief, and then take back your privacy.

Designed from the ground up with State-of-the-Art of Cryptography and Security Practices.

• We created Storm4 from the beginning with security and privacy in mind, not as an afterthought.
• No weak crypto, no back doors, no prying eyes.
• The files on your device are encrypted until you access them, even filenames - nothing is revealed.
• You can even add additional password protection for sensitive files.

Changes to your files sync across all your devices.

• Its easy to securely clone your account across multiple devices, including your macOS desktop and your changes automatically synchronize in the background.
• On iOS the full file is only downloaded when you ask for it.

Usually Storm4 - Secure cloud storage iOS app used & searched for