Realburn
Your real calorie burn.
Realburn shows your real daily calorie burn and balance, with or without a watch. It checks every number against your scale, so your deficit is the one you actually have.
Example numbers, for illustration: this watch reads 17% high, a factor of ×0.83.
What Realburn does
Your real burn
Realburn has its own burn model. It doesn’t copy a device’s number; it builds yours from your body, your steps and your workouts.
Your watch, checked Pro
Your weight trend shows what you really burned. Realburn learns how far off your watch is, like ×0.83, and corrects every day after.
Works without a watch
Start with just your iPhone. Every number comes with how sure it is: an estimate, a good range, or calibrated.
A scale makes it real
Weigh in, even once a week. Your weight trend shows your real deficit, and roughly how much you eat, without logging a thing.
Quick Log, in five seconds
No food database, no barcodes. Type a number, tap a meal you saved once, or pick a size. Logging only needs to be consistent.
Calibrate once, keep the number Pro
Log roughly and weigh in for three weeks. Realburn learns your personal factor, and you can stop logging while the scale keeps checking.
An honest balance
What you’ve burned and eaten so far today, and where you’ll land by midnight, clearly labelled so the two are never mixed up.
Private by design
No account, no ads, no tracking. Your data is read from Apple Health and processed on your iPhone. Privacy policy
Free and Pro
Free
- Your daily burn and balance, deficit included
- The phone-only engine, with its precision
- Quick Log
- A burn or food-budget goal
- The Apple Watch app
Realburn Pro
- Calibration: one exact number and your watch’s factor
- How much you eat, worked out from your weight
- Weight forecast and weekly budget
- Live Activity
- Long-term trends and reports
Prices will be announced at launch. Purchases are handled by Apple.
Questions
- Do I need an Apple Watch?
- Do I have to log my food?
- How can Realburn know my watch is wrong?
- What do Estimate, Good and Calibrated mean?
- Which apps and devices does it work with?
- Which permissions does Realburn ask for, and why?
- Contact support
Realburn gives estimates for healthy adults and is not medical advice. If you have a medical condition or an eating disorder, follow your doctor’s guidance.