Train with
intention.
Log the session, track the fuel, read the load. One free app for athletes who take their training seriously, and for the coaches who work with them.
iOS 16+Apple WatchHealthKitFree, no subscriptionFive tabs. Nothing essential behind a paywall.
Home, Training, Nutrition, Explore and Insights. The whole app, in the order you meet it.






Every session, every meal, every night of sleep. One record.
Workouts, food and recovery in one place, with Apple Health filling in what you did not type. Every entry adds to a complete picture of how you are actually training.

Insights that say what the trend means for this week.
Every session gets a Training Stress Score. Fitness, fatigue and form land on one chart, and the coaching insights read across training, nutrition, sleep and HRV to say what is moving the needle.

Programmes from real coaches. Or a shelf to sell your own.
Explore is where athletes find programmes, plans, recipes and coaching written by people who coach for a living, and where coaches list them. Bought in the app, run in the app.
Two sides of the same app.
Athletes log, fuel and read the load. Coaches run their athletes and sell their work. Same app, same data, no second login.
Log it. Fuel it. Read it.
Every set, every meal and every night of sleep in one place, with the load model your sport actually uses.
Workout loggingNutrition trackingHRV and recoveryTraining plansStreaks and XPRun your athletes. Sell your work.
A compliance dashboard, a programme builder, in-app chat, and a marketplace listing that athletes buy without leaving the app.
Athlete dashboardProgramme builderVideo contentMarketplace storefrontDirect messagingPROTR for Android is on the way.
Leave your email and we’ll let you know the moment it’s ready.
AndroidOne email when it shipsIs PROTR free?
Yes. PROTR is completely free. All core features - workout logging, nutrition tracking, endurance analytics, recovery monitoring, and coaching tools - cost nothing. The only in-app purchases are for buying content from other creators in the marketplace.
What is the best free workout tracking app for iPhone?
PROTR is a free iOS workout tracking app with 500+ exercises, automatic PR detection, RPE logging, previous effort display, strength analytics, and multi-week programme planning. Unlike most workout apps, all core features are free with no subscription required.
Does PROTR track TSS and training load?
Yes. PROTR calculates Training Stress Score (TSS) for every session including running, cycling, swimming, and strength training. It plots CTL (fitness), ATL (fatigue), and TSB (form) on a Performance Management Chart. FTP and threshold pace are inferred automatically from Apple Health history.
Does PROTR work with Apple Watch?
Yes. PROTR supports live endurance sessions on Apple Watch with real-time heart rate, pace, and GPS. Structured workouts push step-by-step instructions to the watch. Watch complications show your streak, next workout, and daily macros.
Can coaches use PROTR to manage athletes?
Yes. PROTR has a dedicated coach mode where coaches can manage multiple athletes, build and deliver structured programmes, view a compliance dashboard showing who completed what, assign habits and check-ins, and deliver group programmes. Coach mode is free to use.
Can I sell training programmes through PROTR?
Yes. Any PROTR user can apply to become a creator and sell workouts, programmes, classes, coaching packages, nutrition plans, and recipes through the PROTR marketplace. There is no upfront cost to join as a creator.
Does PROTR track macros and nutrition?
Yes. PROTR tracks daily protein, carbohydrates, fat, and hydration. Food can be logged by search, barcode scan, or manual entry. Pre-built meal plans and a recipe library are included. An AI weekly summary identifies patterns between nutrition and training load.
Does PROTR sync with Apple Health?
Yes. PROTR reads HRV, resting heart rate, sleep data, and VO2 max from Apple Health. It also writes nutrition data back to Apple Health and infers FTP and threshold pace from Apple Health workout history.
How is PROTR different from a subscription endurance platform?
The established endurance platforms put Training Stress Score and the Performance Management Chart behind a monthly subscription, and most of them stop at endurance. PROTR computes the same load model for free, and covers strength analytics, nutrition, recovery and coaching in the same app rather than asking you to stack another tool on top.
Get in touch.
Athlete, coach, investor, or press: we’d love to hear from you.
Free to download. Free to use.
All core features included. The marketplace is there for when you want a real coach looking at the numbers.
iOS 16+Apple WatchHealthKit