Free for life · for personal trainers and online coaches
The free personal trainer app for coaches and their clients
Manage clients, build workout, cardio and nutrition-guidance plans in minutes, collect signed health questionnaires and daily check-ins — and see who is about to drop off before they do.
- No subscription — free for life
- No ads, no per-client fees
- No credit card, no trial clock
What is ChallenGYM?
ChallenGYM is a free mobile app for personal trainers, online coaches and fitness instructors, available on iPhone and Android in 32 languages. Coaches use it to manage their clients, build strength training programs, cardio plans and general nutrition guidance, and follow every client’s workouts and daily check-ins. Clients get their own app with their plan, their forms and a one-minute daily report.
Everything is free for life: no subscription, no paid tier, no ads and no credit card. It includes a 102-exercise library, 53 cardio workouts, 121 foods and 44 ready meals, a library of plans recommended by the ChallenGYM coaching team, and a community where coaches share and review each other’s work.
Everything a personal trainer needs, in one free app
Client management with drop-off alerts
One screen shows who is on track, who needs you today and who is at risk of quitting — with the reasons, scored from missed workouts, silent days and stalled progress, plus a ready-to-send WhatsApp message.
Learn more — Client managementHealth questionnaire and signed terms
Invite a client with a code. They answer a PAR-Q-style health questionnaire and sign your training terms on their phone. Any “yes” is flagged until you record medical clearance.
Learn more — Client managementWorkout plan builder
A two-screen wizard builds a full strength program by goal, level, days and equipment — or build it yourself from the exercise library. Six splits, from full body to push/pull/legs.
Learn more — Workout plan builderCardio plans by heart-rate zones
53 cardio workouts and a plan builder with five heart-rate zones, weekly progression, deload weeks and a taper before race day — from walking programs to a half marathon.
Learn more — Cardio plan builderNutrition guidance with macro targets
Calorie, protein, carb and fat targets from a short questionnaire, and a daily menu built from 121 foods and 44 meals — general healthy-eating guidance you can edit meal by meal.
Learn more — Nutrition plan builderDaily check-ins and progress
Clients report meals, workouts, weight, sleep and mood in about a minute. You see 28-day activity grids and weight trends, and reply to every check-in.
Learn more — Client managementPlan library
Start from strength, cardio and nutrition plans recommended by the ChallenGYM coaching team or shared by other coaches, rated by coaches who used them.
Learn more — Why it’s freeCoach community
Share exercises and ideas, get peer reviews from other coaches, and join ranked discussions on plans and exercises.
Learn more — Why it’s freeNutrition features provide general healthy-eating guidance for healthy adults. They are not a diet, not medical nutrition therapy and not a substitute for a dietitian or a doctor.
Explore the features
- Client managementSee who needs you today, onboard clients with signed forms and follow every check-in.
- Workout plan builderA full strength program in minutes — by wizard or exercise by exercise.
- Cardio plan builderHeart-rate-zone cardio plans from walking to half marathon, with progression built in.
- Nutrition plan builderCalorie and macro targets with a daily menu — general healthy-eating guidance.
- Exercise library102 strength exercises with how-to steps, cues, common mistakes and muscles worked.
- Why it’s freeNo subscription, no ads, no credit card — what “free for life” means.
Questions coaches ask
What is the best free app for personal trainers?
It depends on what you need, but if you want client management, a workout plan builder, cardio plans, nutrition guidance and client check-ins without paying anything, ChallenGYM is built for exactly that. It is free for life — not a free tier with a client cap and paid upgrades — with no ads and no credit card, on iPhone and Android.
Is there a free alternative to paid personal training software?
Yes. Most coaching platforms charge a monthly subscription that grows with the number of clients. ChallenGYM covers the core of that work — client profiles, training and cardio programs, nutrition targets, health questionnaires, daily check-ins and progress tracking — free for life. It does not include payments or branded apps.
How do I manage personal training clients for free?
Download ChallenGYM, add a client and send the invite code over WhatsApp. The client signs the health questionnaire and your terms in the app, gets the plan you built, and sends a short daily check-in. Your clients screen ranks everyone by drop-off risk, so you know whom to message first.
Can I create workout plans for clients on my phone?
Yes. The quick wizard builds a full strength program from goal, level, training days, session length and equipment, or you can build each day yourself from 102 exercises. Every plan stays fully editable and the client sees it in their app.
Does ChallenGYM work in my language?
The app and this website are available in 32 languages, including English, Spanish, Portuguese, French, German, Arabic, Hindi, Japanese, Korean and Chinese. Exercise, cardio and food content is translated too.
Training with a coach?
Got an invite code from your coach? Download the app, tap “I have an invite code from my coach” — and your plan is waiting for you.
Download ChallenGYM — free for life
For iPhone and Android. No subscription, no ads, no credit card.