Repstack
Muscle groups
Autosave ready

Training analytics

Select a range to review the block.

Trend

Use this to spot momentum, drop-offs, and maintenance blocks.

Group breakdown

Frequency and work distribution by muscle group.

Block feedback

Short coaching notes based on rep ranges, effort, and consistency.

Progress check-ins

Log progress updates, bodyweight, and phase.

Timeline

Keep each update clean: photo, phase, bodyweight, and a short note.

Post Studio

Create a cleaner 4:5 card from one progress photo and a selected training block.

Visible info
100% 100%

Drag the preview with one finger. Pinch or use the slider to frame the photo before downloading.

Select a progress photo to build the card.

Preview

Built to stay readable over light or dark photos.

Story comparison

Compare the calendar months of two progress photos and export a 9:16 story with the key deltas.

100%

Tap the photo you want to adjust, then drag or pinch in the preview. The older photo stays left or bottom depending on the split.

Pick two progress photos from different months to compare them side by side.

Preview

Story-safe framing with direct month-to-month comparison.

Repstack PRO

Support the app to unlock custom themes.

Google Drive sync

The app keeps one root folder called RepStack. Legacy backups stay readable, while new media gets organised into subfolders inside the same root.

Not connected

Export for Sheets

Export flat CSV files and import them into one Google Sheet with separate tabs for raw sessions, check-ins, and weekly summaries.

Training hints

Show a suggested load and rep target below each machine's previous session, based on your goal.

Set timing detection

Hidden set timestamps estimate whether you usually log before or after each set. This only powers estimated rest and idle-time feedback.

Not enough timing data yet

Preferred unit

Default weight unit for new machines. You can still override per machine.

Rest timer

Shows a manual rest timer at the top of the screen. Tap ↺ to start or restart from zero.

Multiple gyms

Track machines per gym. When enabled, a gym selector appears above the machine list.

Exercise progress

Track max load, total reps, and session volume over time.

Edit machine details

Update the name and photo separately from the session log.

Muscle groups

Pick every group that should show this machine.

Machine photo preview No photo yet

Add progress check-in

Use progress photos, bodyweight, and a short note to build your public update later.

Progress photo preview Add a progress photo

Start workout

Confirm the start time now, or adjust it if you started a little earlier.

Save machine to…