Without GAT Guesswork
- “Was that an RPE 7 or a 9?”
- Rest times picked at random
- Adding weight on gut feeling
- Grinding junk reps into fatigue
- A notebook you never look back at
Velocity-based training for Android
Stop guessing your lifts.
GAT measures every rep — bar speed, velocity loss, effort and range of motion — then tells you exactly what to do next. Add weight. Rest. Or call it a day.
- 10+metrics per rep
- 100%offline, on-device
- Freeforever, no account
- Sensoroptional
Why GAT
Train with certainty.
Most lifters log weight and reps, then guess the rest. Bar speed tells you how hard a set really was — and how much you have left.
With GAT Data-driven cues
- Effort estimated from bar speed, every rep
- Rest timer matched to how hard the set was
- Clear calls: Add 2.5 kg · Keep this pace · Stop here today
- Sets end at the right velocity loss
- PRs, volume and estimated 1RM — tracked automatically
How it works
Three steps. Zero guessing.
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01
Clip it on
Snap the GAT Sensor onto a barbell or a weight-stack pin. No sensor yet? Log sets by hand or use the built-in simulator.
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02
Just lift
Train like you always do. Velocity, range of motion and tempo appear live for every rep, with a cue after every set.
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03
Level up
Review your summary, PRs and effort zones. Watch your estimated 1RM climb week after week.
Features
Every rep, measured.
From the first warm-up set to the weekly trend line, GAT turns your training into numbers you can act on.
vs last workout
Push Day · today
- Total reps
- 86 +6
- Total volume
- 6,240 kg +8%
- Top volume exercise
- Bench Press
- Top weight
- 82.5 kg PR
- Work / rest ratio
- 1 : 3.2 ±0
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Live velocity tracking
Per-rep velocity bars, velocity loss and effort zone update the moment the bar stops moving.
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Real-time coaching cues
“Add 2.5 kg”, “Rest for 90 seconds”, “Keep this pace”, “Stop here today” — decided by your data, not your ego.
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Templates & rest timer
Start empty or from your library of templates. A rest timer runs between sets so you never lose track.
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Post-workout summary
PRs, total volume and a Perceived Effort chart from Too easy to Overkill — so you know if the session hit the mark.
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Stats & 1RM progression
Weekly volume, comparisons with your last workout, and per-exercise estimated 1RM history.
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Private by design
No account, no cloud. Everything stays on your phone, and the app checks for updates for you.
GAT Coach
Ask your training data anything.
GAT Coach is an on-device assistant that reads your logs so you don't have to. It answers questions, spots plateaus before they cost you a month, and builds workouts you can save straight to your library.
- “How did my squat change this month?”
- Plateau detection from velocity and volume trends
- Generated workouts, one tap to save as a template
- Runs on your phone — your data never leaves it
GAT CoachOn-device · offline
Why has my bench stalled?
Your top set has been 80 kg × 5 for 3 weeks, while rep-1 speed fell from 0.52 to 0.47 m/s. That points to accumulated fatigue, not lost strength.
Try a lighter week at 72.5 kg, then retest.
Build me a 45-minute push day.
Push Day · 45 min
- Bench Press4 × 6 · stop at 20% loss
- Incline DB Press3 × 10
- Cable Fly3 × 12
- Triceps Pushdown3 × 12
Hardware Coming soon
GAT Sensor — coming soon.
A small clip-on sensor for barbells and weight-stack machines that measures every rep automatically. The app works today without it — log sets manually or try the built-in sensor simulator.
- MountsBarbell sleeve or stack pin
- MeasuresVelocity, ROM, tempo per rep
- EstimatesRPE / RIR, velocity loss, 1RM
- ConnectionBluetooth Low Energy
- PowerRechargeable
Planned specifications; final hardware may differ.
Download
Get GAT for Android.
Free. No account. No ads. Install the APK directly from the latest release.
What's new
Release notes are listed on the releases page.
Install in 3 steps
- Download the APK and allow Install unknown apps for your browser when Android asks.
- Open the downloaded .apk file and tap Install.
- Done — open GAT and start your first workout.
FAQ
Questions, answered.
Do I need the sensor?
No. GAT works fully without it: log sets manually, use templates and the rest timer, and see all your stats. A built-in sensor simulator lets you try the live velocity features today. The GAT Sensor will add automatic rep-by-rep measurement when it launches.
Is it free?
Yes. The app is free, with no ads and no account required.
Is my data private?
Your workouts are stored on your device only. There is no sign-up and no cloud sync. GAT Coach runs on-device too. The only network request the app makes is checking gat.ntl.ai.id for a newer version.
Which Android versions are supported?
Android 8.0 (Oreo) and newer.
Is there an iOS version?
Not right now. GAT is Android-only for the moment.
How do I update?
The app checks for updates automatically and lets you know when a new version is available. You can also re-download the latest APK from this page at any time and install it over the existing app — your data is kept.