App extensions — keep, remove, or choose individual extensions, and sign retained ones with the main profile or their own.
Letra Installer Guide
How to Inject Tweaks into IPA Files with Letra
Add dylib files or import deb packages when signing IPA files in Letra.
↓ Download Letra IPATweak injection
Tweak injection — add .dylib files or import .deb packages; resource bundles inside the package are included automatically.
Entitlements
Entitlements — keep the app’s embedded entitlements or pick your own .plist.
App extensions and metadata
How to enable tweak injection
1
Tap Choose IPA on the home screen and pick an .ipa file.
2
On the Configure screen, choose Ad Hoc or Apple ID.
3
Turn on Tweak Injection and add .dylib or .deb files.
4
Tap Sign.