I have React Native app needs a swift stability pass. Users are currently running into intermittent OTP / login failures, and the appointment module is misbehaving—slots can’t always be booked and the in-app reminders never fire. Coupled with sluggish API calls and a few visual glitches on both iOS and Android, the overall experience feels rougher than it should. Deliverables • Working OTP / login flow with reliable validation • Appointment scheduling and reminder logic fully functional • Optimised API layer with measurable speed gains • Minor UI tidy-ups verified on the latest iOS & Android versions • Signed release builds plus a short hand-off document outlining the changes