Reptron - React Native Fitness Tracker App Template (Workouts, Programs, Progress)

Quick Summary

Reptron is an offline-first React Native (Expo SDK 54, TypeScript) fitness tracker app template — log workouts, follow programs, track body measurements, and watch your progress. Everything runs on-device with no backend, accounts, or API keys required.

• Workout logging — sessions, exercises, sets, history
• Programs — 3 prebuilt routines plus a custom builder with day rotation
• Body measurements — weight, body-fat, waist/chest/arm/thigh/hip with trend charts
• Progress — volume/frequency charts and personal records
• Onboarding + profile, exercise library with a 2D muscle map
• 9-language i18n, light/dark theming, 153 passing tests, strict TypeScript

Platform Compatibility (please note)

Android: built and tested (Android 7.0+). Web: supported (runs without a native build). iOS: the code is iOS-compatible (Expo SDK 54) but has NOT been device-tested in this release. You can validate iOS yourself by running it in an iOS Simulator (npm run ios) or a development build — every screen and store is shared with the tested Android and web targets.

No Backend Required

Reptron is fully self-contained — all data is stored on-device with MMKV. There is no server to deploy, no accounts to create, and no ongoing service costs. Analytics ships as a no-op stub (no data leaves the device); the analytics functions are wired throughout, so you can drop in your own provider without changing call sites.

Features

• Onboarding + profile — multi-step wizard (units, sex, goals, experience), editable profile, metric/imperial inputs, BMI card.
• Workout logging — start a session, add exercises and sets, finish, review history.
• Programs — three prebuilt routines (PPL, Full Body, Upper-Lower) plus a custom program builder with day rotation.
• Exercise library — searchable exercises with a 2D muscle map.
• Body measurements — weight plus body-fat/waist/chest/arm/thigh/hip with per-metric trend charts.
• Progress — weekly volume and frequency charts and personal records.
• 9-language i18n — en, th, ja, zh, ko, es, id, ms, vi, with an in-app switcher.
• Light / dark / system theming with an in-app switcher.

Engineering Quality

• 153 passing unit tests (Vitest); tsc—noEmit clean.
• Strict TypeScript — every entity is z.infer from a Zod schema.
• Offline-first — Zustand + react-native-mmkv. All persisted data is validated with Zod on load.

Tech Stack

Documentation

A full offline setup guide (HTML) is included in the documentation folder — covering a 3-minute quick start, running on web/iOS/Android, rebranding, theming, adding languages, and troubleshooting.

License & Support

Sold under Envato’s standard Regular and Extended License — see codecanyon.net/licenses. Support covers setup help (per the included documentation) and documented template bugs.