Train
with intent.

A strength training app that writes your program, picks your weights, and tells you what to do next.

How it works

Three steps.
That's the app.

01 — Calibrate

Log lifts
you know.

Two lifts is enough. Checkfit sets your starting weights from there.

02 — Train

Six weeks,
mapped out.

Each session unlocks the next. Each week tightens the screws.

03 — Log

One tap
per set.

Weight and reps prefilled from last session. Adjust or confirm.

See your progress

The work
shows up.

Every set you log builds a picture. Strength over time, body composition, how each lift is moving.

Bench press
+42lb
Sessions
36
Best set
185 × 5
WEEK 1 WEEK 3 WEEK 5 WEEK 7 WEEK 9
Built like a tool

No streaks.
No noise.

Adapts to you.

The program adjusts based on what you logged last session.

Weights, picked.

No more guessing. Open the app, hit GO, lift.

One-tap sets.

Sets in seconds, not screens.

Rest built in.

Recovery weeks scheduled by default.

iOS TestFlight Beta

Get early
access.

Request a TestFlight invite and we'll get you in.