Repstack vs CurlBro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Repstack
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You already have a training program. You just need a better place to put it. Repstack is the fastest way to get your training program off a spreadsheet and into your pocket. Paste your program from any source — AI structures it into a clean, editable plan in seconds. No manual entry. No rebuilding it exercise by exercise. Just paste and go. Built for experienced lifters who follow structured programs and don't need an app telling them what to do. No coaching. No recommendations. No charts. Just your program, organized and ready to use. IMPORT FROM ANYWHERE — INSTANTLY • Paste from Google Sheets, Apple Notes, PDFs, coach emails, or text messages • AI parses any format — spreadsheets, plain text, tables, whatever you have • Preserves your exact exercises, sets, reps, RPE, and notes • Handles complex notation: 3x5 @8, 5/3/1, AMRAP, top sets, backoffs • Your entire program is structured and usable in seconds — not hours EDIT FASTER THAN ANY OTHER APP • Chat with AI: "Add bench press 5x5 at RPE 8" — done • "Superset curls and pushdowns, 3 rounds" — done • "Make all sets AMRAP" — done • Full manual editing too — tap any exercise, set, or note to change it • Supersets, circuits, exercise groups — all seamless STRUCTURED FOR REAL PROGRAMS • Weeks and training days — the way real programs are written • Notes at every level — program, week, day, exercise, set • Mark days and sets complete as you train • Standalone workouts for one-off sessions FAST, CLEAN, INTUITIVE • No clutter, no distractions, no features you'll never use • Opens instantly — your program is right there • Every action is one or two taps • Designed for the gym floor, not the couch PRIVATE BY DEFAULT • All data stored locally on your device by default • Pro subscribers get automatic cloud backup — stored securely, not tied to your name or email • AI features send your text for processing — not stored after use • No accounts, no analytics, no tracking, no social features REPSTACK PRO • Unlimited AI imports and chat edits • Automatic cloud backup to restore across devices • Monthly or yearly subscription Built for powerlifters, bodybuilders, and anyone running a structured program who's tired of squinting at a spreadsheet between sets. Privacy Policy: https://repstack.up.railway.app/privacy Terms of Use: https://repstack.up.railway.app/terms
CurlBro
This strength-training app allows users to build, run, and log detailed workout sessions. It features an offline-first design with no account or subscription required, focusing on a clean tool for experienced lifters.
- Drag-to-reorder workout builder
- Superset grouping
- Built-in workout templates
- Per-set logging
- Rest timer with Live Activity
- Full workout history
- Share/import workouts as text
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CurlBro is a strength-training app for people who already know how to lift. Build a workout. Run the workout. Log every set. That's the app. No account. No subscription. No coach telling you to crush it. Your workouts live on your phone, not on someone's server. HOW IT WORKS Build. Search the exercise catalog, drag exercises into order, group them into supersets, set your reps, weights, and rest. Save it to your library. Lift. Start the workout. Each set is pre-filled from your plan — tap in what you actually did. The rest timer runs in a Live Activity, so you can drop the phone between sets and watch the countdown from the Dynamic Island or Lock Screen. Finish when you're done. Log. Every session is saved with duration, volume, and set-by-set detail. Open last week's workout, see exactly what you lifted, and progressively overload from there. WHAT'S IN IT • Drag-to-reorder workout builder with superset grouping • Built-in workout templates to start from (machine beginner through heavy compound) • Fuzzy exercise search, filtered by muscle group, equipment, and difficulty • Per-set logging for reps, weight, duration, and distance • Rest timer with Live Activity and Dynamic Island support • Time-based exercises with a built-in countdown per set • Full workout history — volume, duration, and every set you logged • Share a workout as plain text. Import one somebody sent you. Round-trips cleanly. • Optional: save completed strength workouts to Apple Health PRIVACY CurlBro is offline-first. No account system. No cloud sync. No tracking pixel. Your workouts, sets, and logs stay on your device. If you want a workout on another phone, you share it as text — same format both directions. WHO IT'S FOR Lifters who already know what a superset is, what rest-pause is, and roughly how they want their training to look. Not a program. Not a coach. A clean tool that gets out of the way.
Screenshots
Verdict
The clearest difference is in-app purchases: CurlBro at none against Repstack's 2. Repstack's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support 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. Repstack sells 2 in-app purchases, starting at $3.99 per month. CurlBro asks for nothing beyond the download.
Repstack ships an update every 8 days, CurlBro fortnightly. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.
| Parameter | Repstack | CurlBro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 8 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 41 MB | 28 MB |
| Age rating | 12+ | 4+ |
| Developer | Steven LaGuardia | SIMONE LONGO |
In-app purchases
Repstack
- Repstack Pro (Monthly)$3.991 Month
- Repstack Pro (Yearly)$23.991 Year
CurlBro
No in-app purchases









