Free developer signatures expire exactly after installation. Once expired, the sideloaded GuitarTuna app will immediately crash upon launch unless the device is re-connected to the sideloading server to refresh the digital signature. The Risks and Safety of Modified IPAs
Practical, safe tips for obtaining and managing GuitarTuna on iOS: guitartuna ipa
To install GuitarTuna on iOS devices outside the official App Store, you need the , which allows for manual sideloading using tools like AltStore, Sideloadly, or TrollStore. Free developer signatures expire exactly after installation