FileCrypt is an opensource android application able to perform AES-128 bit encryption on all types of files.
Steps to follow- 1. After Installation, provide the File and Media permission, otherwise app will crash at startup. 2. Encrypted file will be stored with a file extension of ".filecrypt". 3. Decrypted file will be stored with the original filename.
Note- This app does not delete or remove the input file used for encryption or decryption; Instead, this app writes the file generated after encryption/decryption operation.