Damus(clean & easy to use) & Nostrmo(more features & harder to use)
Discussion
Is Damus still maintained? I heard Apple didn’t let them release new updates on AppStore
Most definitely
Apple took away the ability to Zap in the Apple Store version of Damus because it violated ToS but you can still Zap in Damus by using TestFlight and this script https://nostrscript.suhailsaqan.com/