# Deficit: Calorie Counter — Calorie Deficit Tracker > Personalized calorie deficit calculator for weight loss using biometric data. (iPhone/iPad app by Deficit App LLC.) - Source: https://appshunter.io/ios/app/deficit-calorie-counter/id6759154360 (this page in markdown: same URL + `.md`) - Developer: [Deficit App LLC](https://appshunter.io/developer/1877073646) - Category: Health & Fitness, Lifestyle - Price: Free - Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 33 MB - Languages: English - Released: 2026-06-07 - Data updated: 2026-08-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/deficit-calorie-counter/id6759154360/reviews.md ## What is Deficit? Most weight loss apps make you guess. Deficit doesn't. Snapping photos of your plate won't tell you how much to eat. Deficit calculates the exact calorie deficit you need to hit your goal weight—based on your stats, your activity, and real biometric data from your wearables. Then it tracks every meal and calorie burned against it. It's not a diet. It's the number you need to hit, and the tools to hit it. HOW DEFICIT WORKS 1. Take the 60-second onboarding quiz. We ask about your weight, your goal, your activity level, and a few other inputs. 2. Get your daily calorie target. Built on real metabolic science—TDEE, BMR, and activity multipliers—not a generic 1,200 calorie guess. 3. Log meals, sync your wearables, and hit the number. Deficit auto-adjusts as your weight changes, so your target always matches your goal. WHAT MAKES DEFICIT DIFFERENT - Real math, not photo gimmicks. We calculate your deficit using validated metabolic formulas. - Adjusts as you progress. Drop 10 lbs and your target updates automatically. - Built on data you already have. Pulls calories burned, heart rate, and recovery from your wearables instead of asking you to guess. - Designed to be measurable. Every day either hits the deficit or doesn't. No vague streaks, no fake progress. FEATURES - Personalized daily calorie target - Full macro tracking (protein, carbs, fat) - Fast meal logging - Weight trend and progress charts - Daily streak tracking to keep you consistent - Two-way Apple Health sync - Goal weight and timeline projections INTEGRATIONS - Whoop — pulls strain, recovery, and calories burned - Apple Watch — workouts and heart rate - Apple Health — weight, activity, and nutrition data both directions WHO IT'S FOR People who want to lose weight with a system, not a vibe. Whether you're cutting 10 lbs for an event or 50 lbs for the long haul, Deficit gives you the number to hit and the tools to hit it. If you've tried calorie apps that felt like a chore, or photo apps that felt like a guess, this is the version that actually works. MEDICAL DISCLAIMER The information provided by this application is for informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified physician or other licensed healthcare provider regarding any medical condition or treatment. Do not disregard professional medical advice or delay seeking it because of information obtained through this application. If you believe you are experiencing a medical emergency, contact your local emergency services or healthcare provider immediately. By using this application, you acknowledge that any health-related information or recommendations provided are not a replacement for consultation with a qualified healthcare professional. ## Key features - Personalized daily calorie target - Macro tracking - Fast meal logging - Weight trend charts - Wearable data integration - Automatic target adjustment ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/deficit-calorie-counter/id6759154360/reviews.md ### 5/5 — Great tool *2026-06-08* Easy to use. Accurate comprehensive features ## Frequently asked questions about Deficit ### 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. ## Version history (last 2 releases) ### 1.1 — 2026-06-10 Thank you for using Deficit. We regularly release updates to enhance performance, introduce new features, and ensure a smoother, more reliable experience. ### 1.0 — 2026-06-07 No release notes. ## Related topics [calorie calculator free deficit](https://appshunter.io/ios/topics/calorie-calculator-free-deficit) · [deficit](https://appshunter.io/ios/topics/deficit) · [calorie deficit formula](https://appshunter.io/ios/topics/calorie-deficit-formula) · [calorie deficit formula care](https://appshunter.io/ios/topics/calorie-deficit-formula-care) · [calorie counting app](https://appshunter.io/ios/topics/calorie-counting-app) · [free tracking app calories](https://appshunter.io/ios/topics/free-tracking-app-calories) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-11.*