Features

RepStack is a 20-minute bodyweight circuit trainer built around a single idea: race a hard clock, then beat your last number. Every session is one 20-minute countdown — never longer — while you loop through a short circuit of movements and rack up rounds. No gym, no equipment, no hour-long plan to dread.

A quick set of questions places you at the right starting level — no fitness test — and each body part progresses through four difficulty phases independently, so your push-ups can climb while your pull-ups take their time. Build your own circuit of four to six movements, follow the weekly focus, and log each session so the app can tell you when you're ready to level up.

Everything you get

• Every workout races one hard 20-minute clock — never longer
• Circuits of four to six bodyweight movements, one per body part plus a focus
• Four difficulty phases per body part, levelled independently
• A 15-second placement flow starts you at the right level — no fitness test
• Skippable 10–45s rest prompts keep the pace honest
• History that tracks one number: beat your last total
• No gym or equipment — a doorway pull covers you when there's no bar

See it in action