Arnie: Gym Log Workout Tracker

TrainRBoost

Contains adsIn-app purchases

About this app

Arnie is a fast gym workout log and weight lifting tracker for serious barbell lifters. Log sets, reps and RPE in two taps, let the rest timer start itself, and get back under the bar.

Switching workout apps should not cost you your training history. One-tap CSV import brings your sessions, sets and PR history with you — years of progress, safe in minutes.

No account. No sign-up. Works fully offline, even in a basement gym with zero signal. Unlimited workout logging, half-point RPE and per-muscle volume tracking are included from day one.

Built for the working set
- Barbell-first keypad with plate math and your last set pre-filled
- Half-point RPE (7, 7.5, 8 … 10) inline next to the reps field — no modal
- Rest timer that starts the moment you log a set
- Supersets, drop sets, warm-up sets and AMRAP flags, all first-class

Volume and strength math done for you
- Weekly hard sets per muscle group, checked against editable MEV, MAV and MRV landmarks
- Automatic e1RM per lift, so intensity stays honest across rep ranges
- Tonnage per lift, per session, per week
- Automatic PR detection on top-set weight and set volume
- Strength curves and an anatomical heatmap of weekly volume

A real exercise library
- 1323 exercises with form GIFs
- Unlimited custom exercises with your own cues
- Templates you build once and reuse forever

Private by design
- 100% local: your training log stays on your device
- No social feed, no follower counts, no forced cloud
- CSV export any time — your data is yours

Who Arnie is for
Hypertrophy lifters counting hard sets, powerlifters and powerbuilders autoregulating with RPE or RIR, and self-coached athletes tracking e1RM and tonnage.

Arnie Pro
Pro adds the mesocycle planner: block periodization with progression and deload logic you control. Everything else in this listing is part of the standard app.

Open Arnie. Log the set. Rest. Hit the next one.

What’s new

Fast workout logging: two taps per set, half-point RPE, weekly volume per muscle. Works fully offline.