Flex vs Rep Track
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flex
Effortlessly track your strength training progress, build personalized workout routines, and visualize your lifts with an intelligent plate calculator. Syncs data across devices using iCloud for seamless access and prioritizes privacy with Sign in with Apple.
- Effortless workout tracking
- Personalized workout templates
- Customizable workout folders
- Smart Plate Calculator
- Cross-device iCloud sync
- Privacy-focused with Sign in with Apple
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Flex is the ultimate companion for your strength training journey. Whether you're a powerlifter, bodybuilder, or just getting started in the gym, Flex helps you track your progress, build strength, and achieve your fitness goals with simplicity and precision. Experience effortless workout tracking designed to keep you focused on your lift, not your phone. You can build personalized workout templates for any routine and organize them into custom folders to keep your training schedule clean and accessible. With the built-in Smart Plate Calculator, you never have to do gym math again.... Flex automatically visualizes how to load the bar for your specific lifts. Your workouts go where you go. Flex seamlessly syncs your data across all your devices using iCloud, so your history is always up to date. Designed with privacy in mind, Flex uses Sign in with Apple and iCloud to ensure your health data remains secure without third-party accounts. Build consistency and see results. Download Flex today and make every rep count. Flex is designed and built by two fitness freaks, Ashton Krstolic and Kevin Brown. Every feature exists because we needed it at the rack. Questions or ideas? Visit our support page — we read every message.
Rep Track
Log unlimited workouts with this private, ad-free fitness tracker. Features smart suggestions, PR detection, and rest timers. Unlock advanced analytics and unlimited history with a one-time Pro purchase.
- Log unlimited workouts
- Smart workout suggestions
- PR detection with haptics
- Rest timer with haptic feedback
- Workout history export
- Full analytics (Pro)
- Calendar view (Pro)
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Tired of paying $10/month just to log your sets? Rep Track is a free, simple workout tracker that lets you log unlimited workouts without a subscription. Upgrade to Pro once — own it forever. FREE FEATURES - Log unlimited workouts - 95+ built-in exercises + 10 custom exercises - Smart workout suggestions that learn your routine - PR detection with celebration haptics - Export and share branded workout cards - Rest timer with haptic feedback - 30 days of workout history UNLOCK PRO — $4.99, ONE TIME - Unlimited workout history (all time) - Full analytics — weight and volume charts for every exercise - PR dashboard with estimated 1RM across all exercises - Calendar view with interactive drill-down - Lifetime stats dashboard - Unlimited custom exercises BUILT FOR PRIVACY - No account required — ever - No data collection, no tracking, no ads - All workout data stored on your device only - Your fitness journey is yours alone In a world of $10/month workout apps, Rep Track is the one you pay for once and own forever. No subscriptions. No ads. No strings.
Screenshots
Verdict
The clearest difference is in-app purchases: Flex at none against Rep Track's 1. Flex also leads on iOS requirement (18.0 vs 26.0). Rep Track's advantage is update cadence (every 2 weeks vs every 6 months). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Rep Track sells 1 one-off in-app purchase. Flex asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Flex against 5.0 for Rep Track. Both are backed by a comparable volume of ratings — 7 and 3 respectively.
Flex ships an update every 6 months, Rep Track every 2 weeks. The most recent releases landed on September 8, 2026 and September 13, 2026 respectively.
| Parameter | Flex | Rep Track |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | 3 |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | KEVIN BROWN | Taylor Cascino |
Customer experience
Flex
Rep Track
In-app purchases
Flex
No in-app purchases
Rep Track
- Rep Track Pro$4.99









