Train
with intent.

Six-week strength programs, calibrated to your last session. Just confirm and lift.

7-day free trial

Checkfit workout logging screen
Built different

One program.
Calibrated to you.

A template is a guess at the average lifter. Checkfit calibrates to your strength on day one — and adjusts every session after.

0 wk

Programs that progress automatically

0+

Exercises mapped to your equipment

Adapts to every session you log

Inside the app

Less to think
about.

Program screen
Program

Every exercise, organized by day.

Schedule screen
Schedule

Six weeks. Each session unlocks the next.

Log screen
Log

Weights pre-filled. Tap to confirm each set.

Nutrition screen
Nutrition

Calories and macros for your goal.

Nutrition built in

Eat for
the goal.

Training is half the equation. Checkfit sets daily calorie and protein targets matched to your goal — fat loss, maintenance, or muscle — and projects when you'll get there. Change the goal, and the plan rebuilds.

1,903

Daily calories.

A target calculated for your body and goal — not a generic 2,000.

180g

Protein target.

Set to protect muscle while the program does its work.

−1.0 lb

Weekly pace.

A sustainable rate, with a projected date you'll hit your goal weight.

Example targets — yours are calculated from your stats and goal.

How it works

Three steps.
Then lift.

01

Calibrate.

Log two lifts you already know. Checkfit sets your starting weights from there.

02

Train.

Open the app. Weights are picked. Run the session and confirm each set.

03

Progress.

Every set you log feeds the next session. The program adapts to you.

Bonus feature

Already have
a coach?

Checkfit runs your program on its own — no coach required. But if you train with one, they can plug in: view your program and tune it directly.

01

Search.

Find your coach by their Checkfit username.

02

Invite.

Send the invite. They accept — that’s the whole handshake.

03

They tune.

Your coach sees your program and adjusts it directly.

04

You lift.

Sessions update automatically. Nothing else changes.

Anyone with a Checkfit subscription can coach. Either side can end the relationship anytime — no contracts. Learn more about coaching

FAQ

Questions.

Can't find what you're looking for? Email hello@checkfit.com.

What is Checkfit? +

An adaptive strength training app for iPhone and Android. It writes your program, calculates your weights, and tracks every set you log.

Who is this for? +

Intermediate-to-advanced lifters who want intelligent programming without hiring a coach. If you've trained for six months or more and want to actually progress, Checkfit is for you.

How does it pick my weights? +

From your performance history and RIR (Reps in Reserve) targets. You confirm; the math is done.

Do I need a full gym? +

Works with a full gym, home dumbbells, or bodyweight. Tell Checkfit your equipment and it adjusts.

Does it work for women? +

Yes. The programming logic responds to your strength and recovery, not your gender.

Does Checkfit handle nutrition too? +

Yes. Checkfit sets daily calorie and protein targets matched to your goal — fat loss, maintenance, or muscle — and projects when you'll reach it. Change the goal and the plan rebuilds.

How is this different from Hevy or Strong? +

Those are loggers — you write the program, they record it. Checkfit writes the program and picks the weights. You just lift. Full breakdowns: Checkfit vs Hevy and Checkfit vs Strong.

Can my coach use Checkfit with me? +

Yes. Search your coach by username and send an invite. Once they accept, they can view and tune your program directly. Any subscriber can coach, and either side can end the relationship anytime — no contracts.

Can I cancel anytime? +

Yes. Cancel anytime; you keep access until your renewal date.

Is there a free trial? +

Yes — 7 days free on every plan. Cancel anytime before it ends.

Simple pricing

Start free.
Stay strong.

Try Checkfit free for 7 days. Cancel anytime.

  • Full 6-week adaptive program
    Calibrated to your last session, every session.
  • Auto-picked weights
    RIR-based math, no guessing.
  • 250+ exercise library
    Mapped to your equipment.
  • Progress tracking
    Strength curves over time.
Yearly
$17/mo

Billed monthly $200 billed annually · 2 months free

Start free trial

Stop guessing.

Train with intent. Starting today.