The pre-iOS 26 native camera app is good enough for me, and I really like Live Photos, which most alternatives don't handle.
I had a one-time purchase to Halide, but it somehow stopped working in early 2025 because Halide support claimed that the app's feature unlock (used to be one-time upfront purchase, now IAP) only works if I'm logged into the App Store account I purchased it from.
From description in Appstore:
*Please note: Halide is not free. We do offer a 7-day free trial for annual memberships. Don't like subscriptions? You can also buy the app outright with a single in-app purchase.*
Is that what you did?