IPAHelp center
Everything about sharing, installing and troubleshooting Android & iOS builds — short, practical answers.
Guides
Install an IPA on iPhone
OTA install without a computer — full guide.
Share APK files online
Send Android builds to anyone via link.
Ad-hoc distribution guide
Register devices and export an ad-hoc IPA from Xcode.
Free UDID finder
Get your iPhone's UDID in 30 seconds, no computer.
Knowledge base
What is an IPA file
An IPA file is Apple's iOS application package format. Learn what's inside, how to open it, and how to install…
What is an APK file
An APK file is Android's application package. Learn what it contains, whether APKs are safe, and how to share …
What is a UDID
A UDID is your iOS device's unique identifier, required for ad-hoc app testing. Three ways to find your iPhone…
Fix “Unable to Install”
iPhone says "Unable to Install"? Here are the 6 real causes of IPA installation failures and how to fix each o…
APK not installing fixes
Android refusing to install an APK? Here are the real causes — blocked unknown sources, corrupt downloads, arc…
Allow unknown apps
Step-by-step: enable installing APK files outside Google Play on Android 8-15, Samsung, Xiaomi and stock Andro…
Ad-hoc distribution guide
How to register test devices, create an ad-hoc provisioning profile, and export an ad-hoc IPA from Xcode for O…
Enterprise distribution
What the Apple Developer Enterprise Program is, who qualifies, how in-house distribution works, and how it com…
IPA vs APK
IPA and APK compared: structure, signing, installation rules, and how to share each format with testers.…
How OTA install works
How itms-services links, manifest plists and signed IPAs combine to install iOS apps straight from Safari — ex…
What is sideloading
Sideloading means installing apps without the App Store or Google Play. What it is, when it's legitimate, and …