Workout tracker

Training hard — but is it actually working?

Real muscle growth comes down to two things: progressive overload and weekly sets per muscle group. BTB makes both visible at a glance — so you train smarter, not just harder.

iPhone · Free to use · Zero ads · Fully offline

BTB Workout Log — workout list and set logging screen
Fast & smooth
Fully offline
Zero ads
CSV export
Multilingual

The principles

Real growth comes down to just two metrics.

01

Progressive overload

Are your weights and reps truly climbing week to week? See it instantly with per-exercise volume trends.

02

Weekly hard sets

Are you hitting enough sets per muscle group? Catch undertraining and imbalances before they cost you gains.

Features

From logging to visible growth — the shortest path.

Fast logging

See your last session, enter today's weight and reps, save. No friction mid-set.

Volume trends per exercise

Visualize volume per exercise. Know whether you're truly progressing, week to week.

Weekly sets per muscle

Track weekly hard sets per muscle group over any day or date range. Spot over- and under-training and imbalances early.

Your records, your asset

Export to CSV even on the free plan. We never lock your training history inside the app — your data is always yours.

Pricing

Start free, upgrade when you need.

Core features are free — including CSV export.

Free

Free forever
  • Workout logging (weight, reps, time, body weight)
  • Per-exercise volume trends & daily/range analysis
  • Multi-device sync (cloud backup)
  • CSV / text export
  • Fully offline, zero ads

FAQ

Frequently asked questions

Does it work offline?

Yes. You can log fully offline. Once signed in, data syncs to the cloud automatically — perfect for gyms with no signal.

Can I export my data?

Yes. Export to CSV or text even on the free plan. We never lock your data inside the app.

What's included for free?

Logging, analysis, export, and cloud sync — all core features are free. Premium unlocks weekly/period sets per muscle group (hard-set totals).

Which languages are supported?

15 languages, including English, Japanese, German, Spanish, French, Italian, Korean, Portuguese, Chinese, and more.

Are there ads?

No ads at all — so you stay focused mid-set.

Better than before.

"BTB" stands for "Better Than Before." Turn every single workout into real, measurable progress.

Download on the App Store