Step tracker

We are seeking an experienced iOS developer to build a step challenge app that allows friends and family to compete on a monthly leaderboard using step data from multiple wearable platforms. The app will integrate with Apple Health (HealthKit), Fitbit, and Garmin, allowing users to connect their device and sync daily step data, with all step totals and boost multipliers calculated securely. Core features include secure email/password login, basic user profiles, 1 step = 1 point scoring, automatic monthly reset, ranked leaderboard, and a time-based random boost system (e.g., 2x multipliers for limited periods) visible within the app. The developer should deliver clean, maintainable, and scalable code, provide full source code ownership, assist with App Store submission, and have proven experience with HealthKit and wearable integrations. Applicants should provide portfolio examples, proposed tech stack, and an estimated timeline. The target budget is $3,000–$6,000 AUD depending on exper...