Your calories are missing again. Let’s fix it.

Your Apple Watch randomly fails to track resting calories overnight. Calorie Gap automatically finds the gaps in data and fills them in — so apps like Lose It! and other calorie trackers get your full daily burn.

Download on the App Store
Calorie Gap main screen showing detected gaps in resting energy data

Your daily calories are randomly off.

When your Apple Watch is off your wrist overnight — usually while charging — it randomly fails to add resting calorie estimates for those hours. It doesn’t happen every night — just often enough to throw off your calorie tracking when you least expect it. If you’re counting calories for weight loss, the missing data makes apps like Lose It! and other calorie trackers undercount your daily burn.

The problem

11 PM
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
7 AM

500+ overnight calories could be missing

It’s not just you.

It’s an absolute joke that an $800 watch can’t do something so basic consistently.

— r/AppleWatch

I can fix it by calculating how many hours I am missing and manually adding data in the health app, but that is a pain.

— r/AppleWatch

I’ve tried restarting the watch and the phone, making sure both are updated, repairing the watch, etc.

— r/AppleWatch

I track calories for weightloss so my resting energy is important to me. For some reason, once or twice a week, my resting energy will be much lower than normal.

— r/AppleWatch

Don’t even know why I use my watch to track my calorie burn if they never gonna track my resting calories.

— r/AppleWatch

Oh my god it’s the overnight calories not being entered!! Most nights it’s there but sometimes it isn’t.

— r/AppleWatch

No more missing overnight calories.

Calorie Gap scans your resting energy data, finds the hours with missing calories, estimates what you burned, and adds the missing calories — automatically. Every app that reads your Health data gets your full daily burn.

The solution

11 PM
12 AM
1 AM
2 AM
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7 AM

Missing calories added by Calorie Gap

Features

Automatic Gap Detection

Scans your resting energy history and monitors for new gaps in the background*

Automatic Gap Fixing

Gaps are fixed automatically, even when the app isn’t open*

Sleep-Aware Rates

Uses different burn rates for sleep vs. waking hours for more accurate estimates

Gap Inspector

View each gap in a timeline with context hours before and after, plus the exact estimation formula used

Notifications

Get alerted when new gaps appear or are auto-fixed

Fully Reversible

Every fix can be undone. No risk of messing up your data

*All automation is optional — review and fill each gap manually if you prefer. Automatic features are best-effort (due to iOS restrictions) and may occasionally require you to manually open the app to catch up with the latest Health data.

See it in action

Calorie Gap home screen showing detected gaps in resting energy data

See all your data at a glance

Gap details screen showing the estimation formula and fix button

Inspect and fix each gap

Activity log screen showing a history of all corrections made

Track every correction

Settings screen with notification and automation preferences

Customize to your needs

Pay once, keep it forever

No subscription — just a one-time purchase. And you can try every feature free for 14 days before deciding.

Download on the App Store