Wow, this app is awesome!
This is so useful, I’ve been wondering how much a cheat day will affect my weight, and I just have to log everything like I normally do. So easy!
$1.99 Free
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About
This app translates your daily calorie deficit into projected weight changes, showing your real-time weight trajectory. It integrates with Apple Health and your existing fitness trackers to provide clear, visual feedback on your progress.
✓Daily weight change in grams/oz
✓Apple Health integration
✓Actual vs. expected trend charts
✓Apple Watch app and complications
✓Flexible unit switching (kcal/kJ, kg/lb)
✓Mindful safeguards for food intake
✓100% private, on-device calculations
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What's New in Deficit Grams
1.1
October 19, 2026
Fixing an issue where the expected weight graph baseline would change when you switched to Last Year and then remain so when you switched back to Last 30 Days
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FAQ
What is Deficit Grams?
Deficit Grams is a health and fitness app that translates your daily calorie deficit into projected scale weight changes. It provides a real-time view of your weight trajectory based on your dietary intake and energy expenditure.
How does Deficit Grams work with Apple Health?
Deficit Grams is a native Apple Health app that seamlessly reads your dietary calories, active energy burned, and weight history. It integrates with various food loggers and fitness trackers that sync with Apple Health.
Can I see my weight change in grams or ounces with Deficit Grams?
Yes, Deficit Grams displays your estimated daily weight gain or loss in grams or ounces in real time, based on your net energy balance.
Does Deficit Grams have an Apple Watch app?
Yes, Deficit Grams includes an Apple Watch app and complications, allowing you to view your daily balance directly from your watch face.
Is Deficit Grams private and secure?
Deficit Grams is 100% private, with all calculations performed strictly on your device. Your health data is never collected, tracked, or transmitted to any servers.
What are the unit options in Deficit Grams?
Deficit Grams offers flexible unit switching, allowing you to seamlessly switch between kilocalories (kcal) and kilojoules (kJ), as well as kilograms (kg) and pounds/ounces (lb/oz).
Does Deficit Grams have ads?
No, Deficit Grams is built for indie craftsmanship and contains zero ads. It is a clean, one-time purchase with no recurring fees or accounts required.
What is the price of Deficit Grams?
Deficit Grams is available for a one-time purchase of $1.99. There are no subscriptions, ads, or in-app purchases.