Make every campus gym erg session count
By the Watta Team · Updated March 2026
University gyms are full of Concept2 rowing machines — and students who have no idea how to use them effectively. Watta turns your erg sessions into structured training data with AI screen capture, teaches you what your numbers mean with the Effort Score, and connects you with friends for motivation.
The Problem
No idea what the erg numbers mean
Most university students hop on a rowing machine without understanding split time, stroke rate, or drag factor. They row for 20 minutes, feel tired, and have no idea whether the session was effective or how to improve.
Motivation drops without social accountability
Going to the gym alone during exam season is hard enough. Without friends to train with or a way to share progress, erg sessions become boring and inconsistent.
Free apps are limited or confusing
Students want free tools — but free fitness apps either lack rowing-specific features or overwhelm beginners with jargon. There is no free app that makes erg tracking simple and educational.
How Watta Helps
Free AI Workout Logging
Watta is completely free. Photograph your PM5 screen after every gym session and get all your data captured automatically — no subscription, no premium tier, no ads.
Effort Score Explains Your Workout
The 0-100 Effort Score tells you exactly how hard your session was — combining pace, heart rate, and rowing efficiency into one number. Learn what good training looks like without needing a coach.
Train With Friends
Create a squad with your flatmates or course mates. Share workouts, compare scores, and challenge each other on the leaderboard. Rowing is more fun with accountability.
How It Works
Snap your erg screen
Take a photo of your PM5 display after your workout. Gallery upload works too.
AI extracts your data
Watta reads every metric — time, split, distance, stroke rate, heart rate, and calories.
Get your Effort Score
A 0-100 score combining cardiac load, work output, pacing, and economy shows exactly how hard you worked.
Watta is Available Now
Download Watta and start tracking your workouts today.
Download on the App StoreFrequently Asked Questions
Related Content
Every erg counts.
Download Watta and start tracking your workouts today.
Download on the App Store