Stop guessing. Start growing.
An adaptive program that picks your weights and sets your macros — recalibrated every week. Show up and grow.
Sign up in the app
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.
Programs that progress automatically
Exercises mapped to your equipment
Adapts to every session you log
Less to think
about.
Every exercise, organized by day.
Six weeks. Each session unlocks the next.
Weights pre-filled. Tap to confirm each set.
Calories and macros for your goal.
Log it.
Hit your macros.
Training is half the equation. Checkfit sets your daily calories and protein, then lets you log every meal so you actually hit them — and stay in the deficit when you're cutting. No second app to download.
Daily calories.
A target calculated for your body and goal — not a generic 2,000.
Protein target.
Set to protect muscle while the program does its work.
Weekly pace.
A sustainable rate, with a projected date you'll hit your goal weight.
Find a food, log it, done.
Breakfast to bed, one running total.
See calories and macros against your goal.
Example targets — yours are calculated from your stats and goal. More on nutrition tracking
Three steps.
Then lift.
Calibrate.
Log two lifts you already know. Checkfit sets your starting weights from there.
Train.
Open the app. Weights are picked. Run the session and confirm each set.
Progress.
Every set you log feeds the next session. The program adapts to you.
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.
Search.
Find your coach by their Checkfit username.
Invite.
Send the invite. They accept — that’s the whole handshake.
They tune.
Your coach sees your program and adjusts it directly.
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
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.
How do I sign up? +
Checkfit is app-only. Download it from the App Store or Google Play and subscribe right in the app — monthly or annual.
One price.
Stay strong.
Subscribe right in the app. Cancel anytime.
- ✓ Full 6-week adaptive programCalibrated to your last session, every session.
- ✓ Auto-picked weightsRIR-based math, no guessing.
- ✓ 200+ exercise libraryMapped to your equipment.
- ✓ Progress trackingStrength curves over time.
Billed monthly $200 billed annually · 2 months free
Start growing.
Your program, your weights, your macros — handled. Starting today.