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NoteCrypt Encrypted Notes app for iPhone and iPad


4.6 ( 5376 ratings )
Utilities Productivity
Developer: Thomas King
2.99 USD
Current version: 1.2.0, last update: 1 year ago
First release : 18 Jul 2014
App size: 1.07 Mb

NoteCrypt combines strong 256-bit AES encryption, and rugged simplicity. NoteCrypt will prevent even the most determined and well-resourced attacker from accessing your notes, even if they physically possess and can unlock your device.

NoteCrypt goes to extreme lengths to secure your notes:
- Applies 256-bit AES encryption to the full notes database
- Uses the PBKDF2 key derivation and stretching function
- Does not store your password, making your notes impossible to decrypt without it
- Does not have cloud integration or login
- Does not use analytics
- Uses salt to prevent rainbow table attacks
- Foils known plaintext attacks by encrypting big blocks of data including metadata
- Erases the in-memory copy of your notes when leaving the app
- Prevents notes showing in the app switcher
- Does not support Touch ID so as to not compromise on security

NoteCrypt also has the following usability features:
- Simple, no-nonsense design
- Provides an indicator on the strength of your password
- Allows you to change your password
- Dark themed UI

In summary, NoteCrypt works the hardest to secure your notes.