This app helps you: - Sign apk files on your cell phones or tablets. V2 signing scheme is supported. - Manage keystores (import/export). Pro features: - Making your own keystore files. - Themes. Notes - Sample usage for Key Sender: https://youtu.be/EyJK9UIG4b4 - The app is not available in some countries. I am sorry for the inconvenience. - Play Store *unprofessionally* limits replies to 350 characters. Sometimes I can't say thanks after a long reply. Other times, I can't explain enough. In such cases, I apologize. Please contact me via email if you need more information and help.