Gainz vs GymMatrix AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gainz
This app helps serious lifters build structured workout programs, log sets with speed, and review training progress. It focuses on core logging and analytics without gamified elements like streaks or badges. Users can create custom plans, track exercises, and analyze performance data.
- Build and manage structured training programs
- Log workouts with reps, weight, RPE, and rest tracking
- Review workout history and performance analytics
- Create custom exercises and variations
- Share programs and export as PDF
- Offline use and cross-device sync
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ONE LIFT WENT UP. DID YOUR TRAINING? One lift can go up without telling you how the rest of your training went. Gainz puts your program at the heart of the app. Build or pick a program. Change any part of it. Log each set. Then see how you did across exercises, muscle groups, and programs over time. Gainz is for lifters who plan their own training and care about progress over years, not just days. It keeps the full story in one place, so you do not have to judge your training by one good lift. You choose what to keep, change, or try next. BUILD A PROGRAM THAT FITS YOU Build from scratch, pick a Gainz program, browse Community programs, or use one of your own. Each choice opens in the same builder, and you can edit it before you save. Choose your training days, exercises, sets, rep goals, rest times, and number of weeks. Change your program when your goals, gym, or life change. LOG EACH SET. KEEP THE FULL STORY. See today’s workout and the numbers you logged last time. Track weight, reps, and RPE. Add, remove, move, or swap exercises while you train. Add notes to your workout. Set a rest timer, pick its sound, and get an alert even when the app is closed. If your workout gets cut short, Gainz can help you pick up where you left off. You can also log offline and sync across devices when you sign in. SEE MORE THAN ONE LIFT Review past workouts, total load, sets by muscle, and how well you followed your program. Pick a time range to see what changed. Your program may change, but your history stays with you. Gainz Pro adds deeper views: • Program Performance compares two parts of a program. • Muscle Trend groups exercises for the same muscle. • Exercise Progress shows how one lift changed. • Logged RPE adds effort to each view. Each view uses the work you logged and the time range you picked. Gainz does not claim more than your data can show. MAKE GAINZ MATCH HOW YOU TRAIN Browse 300 exercises. See the muscles used, the gear you need, and how to do each one. Make custom exercises and variations so Gainz fits the way you train. Share a program by link. Import a copy you can edit. Post a program to Community. With Pro, save a program as a PDF. FREE AT THE CORE. MORE WITH PRO. Plan, train, review, and adjust for free, with no ads. Gainz Pro adds: • Advanced Review • More program slots • No limit on custom exercises and variations • Program Intelligence as you build • Program PDF export • Custom colors No streaks. No badges. No guilt. No social feed. Just your program, your log, and a clear view of your training over time. Build with care. Log the work. Let your full history guide the next change. Privacy Policy: https://gainzcoach.com/privacy Terms of Use: https://gainzcoach.com/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
GymMatrix AI
This AI-powered fitness app allows voice-controlled logging of workout sets, generating personalized training programs, and tracking progress. It offers smart exercise substitutions, set tracking, and weekly insights to help users achieve their fitness goals.
- Voice-first workout logging
- AI workout generator
- Smart exercise swap
- Set tracking with progress visualization
- Progressive overload coaching
- Weekly AI insights and reports
- Calorie burn estimates
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GymMatrix AI is a voice-first workout tracker that lets you log sets without touching your phone. Just hold the mic and say "bench 225 8" — the AI handles the rest. Built for real gym sessions where your hands are chalked up and your phone is sitting on a bench. Tap or talk, your choice. VOICE LOGGING Hold the button, say your exercise, weight, and reps in natural speech. The AI understands casual gym talk — "two plates for five" becomes Back Squat, 225 lbs, 5 reps. Works even better with AirPods in loud gyms. AI WORKOUT GENERATOR Answer 5 quick questions about your experience, schedule, and equipment. The AI builds a complete weekly program tailored to your goals. Don't like it? Regenerate or edit before saving. SMART EXERCISE SWAP Missing a piece of equipment? Tap swap on any exercise and get 3 AI-suggested alternatives that hit the same muscles. SET TRACKING Visual progress dots show exactly where you are. Three sets of bench? Watch the dots fill as you go. Progress bar tracks your entire session. PROGRESSIVE OVERLOAD COACHING When you've been hitting the same weight consistently, the app nudges you to add 5 lbs or an extra rep. Simple, data-driven progression. WEEKLY AI INSIGHTS Every week, the AI analyzes your training and generates a report: what went well, what to improve, muscle group balance, and a specific tip for next week. CALORIE BURN ESTIMATES Real-time calorie tracking that factors in your body weight, the load lifted, and exercise type. Heavy squats burn more than light curls — the math reflects that. BODY WEIGHT TRACKING Log your weight daily with a trend chart that shows your progress over weeks and months. Goal tracking tells you if you're on pace. 150+ EXERCISES Comprehensive library covering chest, back, legs, shoulders, arms, core, and conditioning. Every exercise has voice aliases so the AI recognizes however you say it. WORKOUT SUMMARY End your session and see the full recap: total volume, calories burned, personal records, and difficulty breakdown. CUSTOM ROUTINES Build your own split or choose from 5 preset programs including Upper/Lower, Push/Pull/Legs, Full Body, Body Part Split, and Glute & Tone. SHARING Brag and share your lifts with friends. Hold each other accountable and share your goal achieving lifts directly from the app. All your data stays on your device. No account required. No ads. Just you and the iron. Development in progress heavily, submit feedback and see your feature requests come to life! Terms of Use: https://sites.google.com/view/gymmatrix-terms Privacy Policy: https://sites.google.com/view/gymtracerprivacypolicy/home
Screenshots
Verdict
The clearest difference is update cadence: GymMatrix AI at every 5 days against Gainz's every 3 weeks. On price, rating, review sentiment and ratings volume 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. Gainz sells 2 in-app purchases, starting at $5.99 per month and GymMatrix AI sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Gainz against 5.0 for GymMatrix AI. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Gainz ships an update every 3 weeks, GymMatrix AI every 5 days. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.
| Parameter | Gainz | GymMatrix AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 102 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Gainz Coaching LLC | Alex Tudor |
Customer experience
Gainz
GymMatrix AI
In-app purchases
Gainz
- Gainz Pro Monthly$5.991 Month
- Gainz Pro Annual14 Days trial$39.991 Year
GymMatrix AI
- GymTracer Pro Monthly7 Days trial$2.991 Month
- GymTracer Pro Yearly7 Days trial$19.991 Year









