Apps installed this way using a free Apple ID will expire every 7 days , requiring you to "refresh" them through AltStore or Sideloadly.
This is a powerful file transfer client for iOS that supports FTP, SFTP, and cloud storage. Apps installed this way using a free Apple
Open AltStore on the phone, go to the "My Apps" tab, tap the icon, and select the IPA file to install it using your Apple ID. Sideloadly: go to the "My Apps" tab