AltStore for sign IPA
Altstore is a newly released method to sideloading unofficial IPA files to your iPhone and iPad Devices. Altstore is a free method and supports both Windows and Mac operating systems.
With the AltStore latest update, the JIT feature was released ( Direct IPA install to devices ) - Read More.
Download AltServer to your Windows / Mac computer > Install AltStore to your iOS Device
Launch AltStore from iOS Home Screen to start downloading apps
AltServer ruuning and AltStore will do iPA sign
AltStore Support iOS version
AltStore supports iOS 12.2 to iOS 15.4.1 versions. AltStore alternative Sideloadly also supports to latest iOS versions such as iOS 15.5. To iOS 7.