Checkfit vs Strong.
Strong records your workout. Checkfit decides it. Strong is a logger that assumes you bring the program; Checkfit is the program, written for you and built to grow muscle.
What Strong does well
Strong is a clean lifting logger with a fast interface and a broad exercise database. Checkfit logs every set just as cleanly — the difference is what happens around the logging. Strong records what you did; Checkfit also decides what you should do next. Anything Strong does inside a workout, Checkfit does too, and then keeps going.
Why lifters choose Checkfit
Strong assumes the hard part is already solved. It never picks a weight, calls a deload, or tells you when to push. If the program you're logging stopped working, a logger just keeps a tidy record of you not progressing.
Checkfit writes the program and runs it. It calibrates a six-week hypertrophy mesocycle to your current strength, picks the weight for every set, manages your volume, schedules deloads, and adjusts the next session from the reps in reserve you reported on the last one. You don't decide what to lift, how heavy, or when to back off — the app does, using the same hypertrophy science a good coach would.
And it covers what actually drives growth: daily calorie and protein targets are built in, plus an optional coach connection. Strong tracks your sets; Checkfit handles the programming and the nutrition that turn those sets into muscle.
Nutrition the others don't have
Strong logs the work in the gym and stops at the door. The eating — the part that decides whether you actually gain or lose — is on you and whatever second app you cobble together. Checkfit closes that gap inside the same app. You get a daily calorie and protein target, then you log your food against it: search a food, add it, watch the running total move toward your number. Cutting means staying in a deficit you can see; gaining means hitting protein every day.
It's one app and one subscription for both the training and the eating, instead of a logger here and a macro tracker there. See how nutrition works.
At a glance
| Checkfit | Strong | |
|---|---|---|
| Programming | Six-week mesocycles, automatic | You bring your own |
| Weight selection | Calculated each session | You enter manually |
| Progression | Automatic, RIR-based | Manual |
| Calorie & protein targets | Included | None |
| Food logging | Built in | None |
| Coach connection | Included | None |
| Clean set logging | Yes | Yes |
| Free trial | 7 days, full access | Free tier — logging only |
| What you pay for | $17/mo — training, nutrition & coaching, all in | A logger; you still buy a program, macro app & coach |
The verdict
Strong is a good logger, and Checkfit logs just as cleanly — so on the thing Strong does, they're even. Everywhere else, Checkfit does more: it writes the program, picks the weights, manages volume and deloads, and logs your food against a calorie and protein target — all in one $17/mo subscription instead of a logger plus a program plus a macro app. Equal where it counts to Strong, ahead everywhere else. Get Checkfit.
Know exactly what
to do next.
Six-week programs, calibrated to you. Sign up in the app.
