Mobile App Developer Needed (iOS / Android) – Focused Utility App We are looking for an experienced mobile app developer to build a simple, high-polish utility app for iOS and Android. This is not a complex platform, not an AI product, and not a large backend system. It does, however, require excellent mobile fundamentals, OS-level experience, and discipline. About the App The app allows users to: Pre-record a personal voice message Assign it to specific contacts or groups Automatically send an instant SMS with a secure audio link when a selected contact calls and the user does not answer The app: Does not answer calls Does not replace voicemail Uses device-sent SMS (no third-party SMS services) Has a very strict, locked specification A full developer specification and UX/UI spec are already complete and must be followed exactly. What We Are Looking For You must have: Proven experience building native iOS and/or Android apps Experience handling OS-level permissions and background behaviour - Call state detection - SMS sending - Microphone access Experience shipping apps to the App Store and/or Google Play Ability to work from a clear specification without improvising Strong attention to reliability, edge cases, and user trust This is a precision build, not an experimentation project. What You Do Not Need AI / ML experience Complex backend or scaling experience Web-only or no-code platform experience Feature ideation or “product improvement” suggestions We already know exactly what we want built. Scope & Expectations MVP build (polished, review-ready) Minimal backend (audio storage only) Clean, calm, user-friendly UI Strong focus on: - Correct OS behaviour - Reliability - App Store / Play Store compliance To Apply, Please Include Links to real mobile apps you have built and shipped Briefly explain your experience with: - OS permissions - Background behaviour - SMS or call-related features (if any) Confirm that you are comfortable building strictly to spec Please contact me in chat