I am going to launch my app on the AppStore and I would like to keep track of crashes and fix them as soon as possible. If possible, it would be nice to collect also some additi
Crashlytics is second to none for crash reporting.
We were in the same boat as you trying to find the best crash reporting solution. After some thorough investigation and test runs of TestFlight, HockeyApp, and Crashlytics, we originally chose HockeyApp because they allowed us beta distribution along with crash reporting on both iOS and Android (we wanted both in one solution for both platforms). However, HockeyApp's exception backtracing was just not giving us any additional crash details. This is where Crashlytics shines. Their exception backtracing is amazing. Period.
So here's my summary of all 3 SDKs:
Crashlytics
TestFlight
HockeyApp (HockeyKit - Beta distribution, QuincyKit - Crash reporting)
All that said, we chose Crashlytics for crash reporting, and HockeyApp for beta distribution. But you must chose what works best for your needs.