(by u/BenliM28 on reddit)
Ipa Sources
How to install IPAs?
If you are on any version between 14.0 beta 2 - 16.6.1, 16.7 RC (20H18), 17.0 then use Trollstore, Guide
If you are on a newer version and ready to spend money you can purchase a signing service like Maplesign, Signulous or App Testers combined with an ipa signer like Esign (I'd recommend downloading a version of esign with no logs, found here) or a newer alternative, Feather
If you are on a newer version and not ready to spend money you can follow this guide
Regular IPA sites (cert, trollstore, etc.)
Cypwn Ipa Library - Lots of good quality and tested tweaked ipas
Starfiles - Huge collections of ipas, though some of them may not work
Appdb - Another big collection of tweaked ipas
Apptesters - To use this collection of mostly games but also apps see the repos section below
Tweaked-iOS-Apps - Megathread for tweaked ipas of popular apps with only good quality and tested uploads
IOSObscura - Ipas for legacy ios versions
Pdalife - Mostly for apks but contains some paid and old ipas only found here
Epic Games Store IPA Repository - Epic Games Ipas for older ios versions
Appcake - Big collection of tweaked apps
Trollstore only IPAs
Cypwn
Trollstore-IPAs - This repo was shutdown but the owner uploaded it to this pastebin: https://pastebin.com/79Q26FMj
Trollhub
Telegram channels
Kamo Hacks
zxcvbn_tweaked
Dpixel
Randy420
Apptesters
Jimbos Ipa Library
IPA Free
IApps
Ed0.ipa
Hertzsign
Dan's workshop (latest tweaked youtube releases)
Babylon ipa library
SultanMods
Binnichtaktiv's ipa library
CA ipa's
Ipa Repos
These repos can be used with apps like esign or scarlet (copy the links and paste them into your preferred apps repositories section) You can also copy this text to add all of them at the same time (just click on the "add repo" button in esign or your preferred signing app)
Apptesters
Esign official source
Qn_'s AltStore Repo
RandomSource
CyPwn IPA Library
Panda App Ru++
Burrito's AltStore
Wuxu's library
Wuxu's library ++
SwaggyP36000 ipa library
zx's repo
Binnichtaktiv's ipa repo