About

An independent fitness studio.

TrainRBoost is run by a single developer in France. We build training and tracking apps that respect your time, work offline, and never sell your data.

Founded

2024

Independent studio, no investors.

Team size

1 person

Full-stack solo dev — design, code, marketing.

Languages

en, fr, de, es, hi, id, it, ja, pt-BR, ru, zh-CN.

What we make

Puna — bodyweight training app with structured programs, XP, streaks. iOS + Android.
Cactus — water intake tracker with a cactus mascot that grows when you hit your goal. iOS + Android.
Doudou — newborn tracker (feedings, diapers, sleep, pumping) with real-time Family Sync between parents.
Arnie — strength training logbook (in development).
Gladiator & Valkyrie — 12-week bodyweight PDF programs for men and women.
24+ free calculators — BMI, TDEE, macros, push-up standards, VO2 max, and more.

How we work

Free first. All apps are free to download. Premium upgrades are optional.
Privacy by default. No data sold. Most data stays on-device.
Offline-friendly. Apps work without an internet connection.
Self-hosted. Our own VPS, our own infrastructure, no third-party tracking.
Open feedback. Email support@trainrboost.com — every message is read by the founder.

Browser extensions

We also publish 3 free browser extensions on Chrome Web Store and Firefox Add-ons: Workout Timer (Tabata/HIIT), Water Reminder, and Baby Log. They are free, open, and do not collect any data.

Contact & business

For support questions, partnership requests, or press inquiries, email support@trainrboost.com. Average response time: under 48 hours.

TrainRBoost is registered in France. App downloads are processed by Apple App Store and Google Play. PDF programs are processed by Stripe.