There are many alternatives to Cryptonite for Android and since it's discontinued a lot of people are looking for a replacement. The best Android alternative is EDS (Encrypted Data Store), which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Cryptonite and five of them are available for Android so hopefully you can find a suitable replacement. Other interesting Android alternatives to Cryptonite are Luks manager, SecretVaultpro, Kruptos and File Locker (Image and Video Hider).