Gainr: AI Personal Trainer

Splice Labs

In-app purchases

About this app

Your AI personal trainer. Custom workouts, real gains.
Meet Gainr - Your AI Personal Trainer in Your Pocket

Gainr is an intelligent fitness app that generates personalized workout programs just for you. Skip generic programs. Get AI-powered coaching that adapts to your goals, experience level, and progression.

What You Get
AI-Generated Workouts Ask Gainr to create a custom workout program. Our AI analyzes your fitness history, goals, and progression to design programs that challenge you appropriately. Your program adapts as you get stronger.

Personalized Coaching Gainr learns from your data. Every workout you log makes the coaching smarter. Get recommendations based on your actual performance, not generic templates.

Track Real Progress Log your workouts and watch your gains unfold. Beautiful, interactive charts show your volume, weight, reps, and personal records. See exactly how you're progressing week to week.

Complete Control Create your own custom exercises and workouts. Mix AI-generated programs with your training style. Use pre-defined exercises or define your own.

300+ Pre-Defined Exercises Access our library of exercises organized by muscle group and type (strength, cardio, HIIT). Each includes descriptions to guide your form.

Works Everywhere Log workouts on your phone, tablet, or computer. Your data syncs seamlessly across all devices. Train anywhere, track everywhere.

How It Works
Create Your Profile - Tell us your age, experience level, and goals
Generate a Program - Ask Gainr to create a personalized workout
Log Your Workouts - Record exercises, sets, reps, and weight
Watch Your Progress - See your gains in beautiful charts and metrics
Premium Features
Unlock unlimited:

AI-generated workout programs
Custom exercises and workouts
No ads
Data export
Free users get access to pre-defined exercises, unlimited logging, and more.

Why Gainr?
Affordable Coaching - AI personal training for $2.99/month (or less on annual plan), not $200/month
Smart Progression - Programs that adapt as you get stronger
Beautiful Design - Clean, intuitive interface that makes training feel effortless
Your Data - Own your workout history. Export anytime. Privacy by design.
Perfect For
Lifters tired of generic programs
Gym beginners who want personalized guidance
Anyone serious about tracking their progression
People who want affordable coaching without hiring a trainer
What Users Love
"Finally, a fitness app that feels designed for real training." "The AI workouts are actually customized to me, not just templates." "Love seeing my gains visualized in real time."