Great tool
Easy to use. Accurate comprehensive features
Free
About
This app calculates your precise daily calorie deficit needed for weight loss based on your personal stats and wearable data. It tracks your meals and calories burned against this target, adjusting automatically as you progress. It offers a data-driven approach to achieving your weight goals.
✓Personalized daily calorie target
✓Macro tracking
✓Fast meal logging
✓Weight trend charts
✓Wearable data integration
✓Automatic target adjustment
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What's New in Deficit
1.1
June 10, 2026
Thank you for using Deficit. We regularly release updates to enhance performance, introduce new features, and ensure a smoother, more reliable experience.
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FAQ
How does Deficit calculate my calorie target?
Deficit uses real metabolic science, including TDEE and BMR, along with your personal stats and activity level from onboarding and wearables, to calculate your precise daily calorie target. This is not a generic guess.
Does Deficit adjust my calorie target as I lose weight?
Yes, Deficit automatically adjusts your daily calorie target as your weight changes. This ensures your target always aligns with your goal, providing continuous guidance.
Can Deficit sync with my wearables?
Yes, Deficit integrates with wearables like Whoop and Apple Watch to pull data such as calories burned, heart rate, and recovery. It also offers two-way sync with Apple Health for weight, activity, and nutrition.
What kind of data does Deficit use from wearables?
It pulls metrics like strain, recovery, and calories burned from Whoop, and workouts and heart rate from Apple Watch. Apple Health syncs weight, activity, and nutrition data.
Is Deficit suitable for long-term weight loss?
Deficit is designed for both short-term goals, like losing weight for an event, and long-term weight management. It provides a consistent system to hit your target, whether you need to lose 10 lbs or 50 lbs.
Does Deficit have ads?
No, Deficit is ad-free, allowing for an uninterrupted user experience focused on your weight loss journey.
What is the age rating for Deficit?
Deficit has an age rating of 4+, making it suitable for a wide range of users interested in managing their weight.
How often is Deficit updated?
The latest version of Deficit is 1.1, and it was last updated on June 10, 2026. Updates typically bring improvements and new features.