CypherIt

Its a very simple app where you enter in a password and the text you wish to encrypt.

You then just hit the "Encrypt" button and the text is encrypted. To use in another app just tap on the copy button and the encrypted text is placed in your devices clipboard for use in anther app.

To decrypt you will also need this app. Past the encrypted text into the app, use the same password that was used to encrypt the text, tap on the decrypt button and the text is decrypted

You currently have the choice of two publicly available encryption approaches which will be expanded in future. These approaches are listed in the app.