MacroFactor is a specialist, and a good one. Its adaptive TDEE algorithm, which infers your real energy expenditure from your intake and weight trend and adjusts targets weekly without the guesswork of a calculator, is the best implementation of that idea in a consumer app. If that specific feature is what you are shopping for, this page is going to tell you to buy MacroFactor.
What this page is actually about is the other half of the stack.
What each app covers
| OneRep | MacroFactor | |
|---|---|---|
| Food logging and barcode scanning | Yes | Yes |
| Photo meal logging | Yes | Yes |
| Adaptive TDEE and weekly macro adjustment | No | Yes, best in class |
| Expenditure trend from weight + intake | No | Yes |
| Strength training logger | Yes | No |
| Exercise history, volume and strength trends | Yes | No |
| Video form analysis | Yes, 5 analyses/mo free | No |
| Body measurements and custom metrics | Yes | Yes |
| AI coach reading training and nutrition | Yes, 10 requests/mo free | No |
| Free tier | Yes, permanent | No |
Where MacroFactor is the better choice
- Adaptive dieting. If you want your calorie and macro targets recalculated every week from real data instead of a formula, nothing else does it as well. OneRep does not attempt this.
- Diet-first users. If training is secondary and the number you care about is the weekly target, the specialist wins.
- Data quality obsession. MacroFactor's approach to food database curation and its expenditure modelling are unusually rigorous, and the team's published reasoning is worth reading regardless of which app you use.
Where OneRep is the better choice
There is a training log. This is the structural difference. MacroFactor is not a workout app and does not claim to be, so anyone who lifts is running it plus something else. OneRep is both.
One timeline. Strength trends, weekly training consistency, body measurements and nutrition on the same twelve-week view. When you are deciding whether to change the plan, that is the view you want.
A coach that has your lifting in front of it. OneRep Coach reads training, food, goals, equipment constraints and remembered preferences together. "My shoulder is cranky, keep today useful" produces a swap against your real routine that preserves your volume, shown for approval before anything saves. A nutrition-only coach cannot answer that question because it cannot see the session.
Form Coach. Film a squat set; pose estimation runs on the device, the video stays on your phone, and you get joint angles, tempo, range of motion and symmetry back, with corrections drawn on your own body in 3D.
A free tier that is not a trial. Food logging, workout logging, progress, body metrics and sync cost nothing, permanently, and the AI features are usable on a free account within a monthly allowance rather than locked behind the subscription. MacroFactor is subscription-only with no permanent free tier, a defensible choice for a specialist tool, but a real difference if you want to try something for a month before paying.
The honest summary
These apps are not really competing for the same job. If your problem is "my calorie target is a guess and I want it to adapt," buy MacroFactor. If your problem is "I am running a lifting app and a food app and neither knows about the other," that is the problem OneRep is built for.
A reasonable number of people will use MacroFactor for diet and OneRep for training, and that is a perfectly sensible stack. It is just not the one OneRep is optimising for.
Pricing
OneRep Core is free forever, AI included within a monthly allowance; OneRep Coach is €4.99 a month via Stripe and raises that allowance from 10 requests to 500. Cancel any time. MacroFactor is subscription-only; see their pricing for current rates.
Try it
Create a free account and log a week of training and food together.
More reading: reading a twelve-week trend instead of one bad Monday · all comparisons