Every other app hands you a formula's opinion of your metabolism. Repwise watches what you actually eat and what the scale actually does, then works your real maintenance out from your own body — and gets sharper every week you log.
Works with no account at all — or sign in and it follows you to every device.
Add it to your home screen and it works with no signal.
Water, salt, glycogen and last night's dinner swing your weight by a kilo or more overnight. A simple average doesn't save you either — one big Saturday drags the number for a week.
Repwise takes the median of your trailing seven days. A single bad reading barely moves it, so the line you see is the line your body is actually on.
| Week starting | Median | Change |
|---|---|---|
19 May 6 weigh-ins |
74.3 kg | −0.6 |
12 May 7 weigh-ins |
74.9 kg | −0.4 |
5 May 5 weigh-ins |
75.3 kg | −0.5 |
28 Apr 7 weigh-ins |
75.8 kg | 0.0 |
Most people run a calorie app, a spreadsheet and a training app that never talk to each other. Repwise is all three, and they feed the same maths.
Point the camera at a barcode and the product's calories and macros go straight into your diary. Over three million products, and anything you scan once is saved to your device so it works the next time even with no signal.
Day one uses a formula, because that's all anyone has. By week three Repwise is using your own intake against your own weight trend — and it tells you exactly how much it trusts the number.
Log weight and reps set by set, see what you did last time on the same lift, and get a PR flag when your estimated 1RM beats your best.
Protein is set per kilo of body weight, fat as a share of calories, carbs fill the rest. Change your goal and every target moves with it.
Your intake predicts a rate of loss. The scale reports another. Repwise shows you both and closes the gap over time.
Repwise writes everything to your own device first and never waits on a network — so it works on the tube, in a basement gym, on a plane. Use it with no account at all and nothing ever leaves the device. Or sign in, and the same logs turn up on your phone, tablet and laptop, merged record by record so nothing gets overwritten. Either way you can export the lot as JSON whenever you like.
Same scale, after the loo, before food. Miss a day and nothing breaks — the median only needs most of your mornings, not all of them.
Scan the barcode, search the built-in table, or save your own foods once and reuse them. Meals are grouped and timed so the day reads like a diary.
Every entry updates your rolling average weight, your trend, your maintenance and your confidence score. You just keep logging.
Repwise keeps your sessions next to your food, because they're the same problem. Start from a routine, tick sets off as you do them, and see last week's numbers on the same lift while you decide what to load.
Great session! Keep pushing forward.
| Sets | Weight | Reps | Progress |
|---|---|---|---|
| 1 | 90 kg | 10 | 10/10 |
| 2 | 90 kg | 10 | 10/10 |
| 3 | 92.5 kg | 8 | 8/10 |
You should not have to trust a black box with your diet. Here is exactly how Repwise arrives at your maintenance calories.
Daily weight is mostly water. Repwise takes a 7-day rolling average of your weigh-ins and never works from a single morning.
A weighted least-squares line runs through those rolling averages across the last 28 days, with recent days weighted more heavily. The slope is your real rate of change.
Roughly 7,700 kcal is a kilogram of body mass. So:
maintenance = average daily intake − (kg change per day × 7,700)
Losing weight adds the deficit back on. Gaining takes the surplus off. One formula, both directions.
A new calculation never lands all at once. The displayed number moves a fraction of the way each day and is capped, so one strange week cannot swing your targets around.
Confidence is scored out of 100 from how many weigh-ins and food logs you actually have, how consistent your intake is, and how clean the trend looks. It never reads 100% — scales and food labels are never exact.
Your current intake predicts a weekly rate of change. The scale reports another. Repwise puts them side by side, and when they disagree it adjusts your maintenance rather than blaming you.
Plenty of apps count calories well. The difference is what happens to the number after you've counted them.
| Typical calorie app | Repwise | |
|---|---|---|
| Maintenance calories | A fixed formula estimate | Learned from your intake and weight trend, updated daily |
| Body weight | Yesterday's number, or a plain average | 7-day median plus a recency-weighted trend line |
| Tells you how sure it is | Rarely | A confidence score, every day |
| Barcode scanning | Usually | Yes, plus offline re-use of anything scanned |
| Training log | A separate app, or an extra subscription | Built in, sharing the same week |
| Account required | Almost always | Optional — full app without one |
| Works with no signal | Partly | Fully, once installed |
| Where your data lives | Their servers | Your device first, mirrored to your account only if you make one, exportable as JSON |
Three weeks from now you'll know what your body actually burns. Nothing to install, nothing to sign up for.