Repstack vs FitnessData
Price, ratings, monetisation and update history for both apps, side by side ā 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 ā 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 ā INSTANTLY ⢠Paste from Google Sheets, Apple Notes, PDFs, coach emails, or text messages ⢠AI parses any format ā 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 ā not hours EDIT FASTER THAN ANY OTHER APP ⢠Chat with AI: "Add bench press 5x5 at RPE 8" ā done ⢠"Superset curls and pushdowns, 3 rounds" ā done ⢠"Make all sets AMRAP" ā done ⢠Full manual editing too ā tap any exercise, set, or note to change it ⢠Supersets, circuits, exercise groups ā all seamless STRUCTURED FOR REAL PROGRAMS ⢠Weeks and training days ā the way real programs are written ⢠Notes at every level ā 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 ā 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 ā stored securely, not tied to your name or email ⢠AI features send your text for processing ā 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
FitnessData
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FitnessData is the complete platform for professional Personal Trainers who want to manage clients, workout plans, payments, and weekly calendar ā all in one app. WHAT YOU CAN DO WITH FITNESSDATA CLIENT MANAGEMENT ⢠Full health intake with measurements, progress photos, digital contract signature ⢠Multimedia gallery for exercise videos and photos ⢠Package history and upcoming renewal dates ⢠Each client gets a personal web portal link WORKOUT PLANS ⢠Create weekly workout plans with exercises, sets, reps, weights ⢠Import plans from PDF/Word/Excel: AI parses and creates them automatically ⢠6 disciplines: strength, cardio, calisthenics, postural, rehab, sport-specific ⢠Clients see their plan from the web portal, log actual weights and completed sets ⢠Auto rest timer between sets PAYMENT & BUDGET TRACKING ⢠Log payments per client: cash, transfer, POS, app ⢠Automatic renewal date calculation ⢠Finance dashboard with balance trend chart ⢠Trash with 7-day undo ⢠Export invoices and receipts CALENDAR & APPOINTMENTS ⢠Drag-and-drop weekly calendar ⢠Two-way Google Calendar sync ⢠Automatic appointment reminders ⢠Separate trial sessions and group classes views CLIENT WEB PORTAL ⢠Each client gets a personal link ⢠Sees workout plans, calendar, weight history, contract, payments, photos ⢠12 customizable color themes ⢠Works on any browser, no install needed BUILT-IN AI ⢠AI parser for importing workout plans from existing documents ⢠Automatic progress analysis ⢠Weight progression suggestions PRIVACY & SECURITY ⢠GDPR Art. 9 compliant (health data) ⢠End-to-end encryption for sensitive data ⢠Automatic private cloud backup ⢠Two-factor authentication (MFA) ⢠No ads, no third-party tracking NO LOCK-IN ⢠Works offline (syncs when you're back online) ⢠Data exportable anytime (JSON, PDF) ⢠Multi-device: iOS, web Built by a personal trainer for personal trainers. No useless features: only what you actually need. Support: support@fitnessdataplatform.com Privacy: https://fitnessdataplatform.com/privacy Terms: https://fitnessdataplatform.com/terms
Screenshots
Verdict
The clearest difference is update cadence: FitnessData at every 2 days against Repstack's every 8 days. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Repstack sells 2 in-app purchases, starting at $3.99 per month and FitnessData sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Repstack ships an update every 8 days, FitnessData every 2 days. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.
| Parameter | Repstack | FitnessData |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Every 2 days ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.1 ā better | 16.0 |
| Further details ā not scored | ||
| Size | 41 MB | 28 MB |
| Age rating | 12+ | 4+ |
| Developer | Steven LaGuardia | Denis William Chichi |
In-app purchases
Repstack
- Repstack Pro (Monthly)$3.991 Month
- Repstack Pro (Yearly)$23.991 Year
FitnessData
- +10 GB storage$2.991 Month
- FitnessData Pro$14.991 Month
- FitnessData Pro$149.001 Year
- 10 import credits$1.99
- 30 import credits$4.99
- 60 import credits$8.99
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- 120 import credits$11.99








