# Fiber: Calorie Calculator — Diet, Carb, Macro Calculator > Free, precise macro and calorie calculator based on body fat for fitness goals. (iPhone/iPad app by Airimantas Kairiukstis.) - Source: https://appshunter.io/ios/app/fiber-calorie-calculator/id6469620839 (this page in markdown: same URL + `.md`) - Developer: [Airimantas Kairiukstis](https://appshunter.io/developer/1712305252) - Category: Health & Fitness, Food & Drink - Price: Free - Rating: 4.30/5 from 33 App Store ratings · 36 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 18 MB - Languages: English - Released: 2023-10-27 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/fiber-calorie-calculator/id6469620839/reviews.md ## What is Fiber? Calculate your calories and macros easily and simply for free. Eat what you want! Always respecting your carbohydrate, protein and fat targets. • Calculate your caloric needs. • Calculate all your macronutrients. • No subscriptions. • No adds. • No sign-ups. • All information is confidential ___________________ • Accurately calculate the macros your body needs to reach your fat loss, muscle gain, or maintenance goals. • The Fiber App was designed for those in search of the most precise macronutrient calculations to achieve fat loss, muscle gain, or body weight maintenance. • A macro calculator is only valuable if it provides accurate macros. The Fiber App's body fat-based macro calculator accomplishes just that. • Macro Calculators and macro trackers outperform the results of calorie counters. Whether your goal is weight loss or muscle building, a macro calculator is your optimal choice. Even if you aim to maintain your weight and enhance overall health, Fiber app will assist you. • Fiber offers the world's most sophisticated and user-friendly macro tracker available in the app store. It caters to the needs of novices and seasoned nutritionists and physiologists alike. Fiber provides the ultimate nutrition experience for tracking macros—simple, fast, and powerful. Calculating macros and monitoring macro intake works for losing body fat, bodybuilders, athletes, and everyone in between. • Hundreds of millions track their food using mobile apps that rely on macro calculators based on a flawed BMI formula developed in the 17th century for adult males in an English village. Fiber is a next-generation macro tracker based on body fat, making it the most precise macro calculator for nutrition-based fat loss, muscle building, and optimal health. • The Fiber App provides a reliable estimate of one's macronutrient needs based on goals and current body composition. For more precise macro calculations • The Fiber App takes into consideration each user's activity level, whether it's exercise, household chores, or manual labor, to calculate the most accurate daily macro targets. Changes in body composition are reflected in real-time macro calculations. • The Fiber App's calorie dial enables precise adjustment of macro calculations according to an individual's body and goals. You can dial down to reduce energy intake for increased fat loss or dial-up to boost energy intake for muscle growth. ## Key features - Calorie calculation - Macronutrient calculation - Body fat-based calculations - Goal-oriented tracking (fat loss, muscle gain) - Activity level adjustment - Real-time macro adjustments ## Recent user reviews (10 of 36) All indexed reviews: https://appshunter.io/ios/app/fiber-calorie-calculator/id6469620839/reviews.md ### 5/5 — Hiker32 *2025-01-08* Very simple easy to get started no fuss, straightforward ### 3/5 — Nice & simple, but of limited use *2024-07-23* In a very short quiz, the app asks you perhaps seven questions, and then gives you targets for daily carbs / fat / protein. That’s it. It does not help you calculate what you’ve eaten, nor is there a way to adjust how quickly you want to lose weight, if that’s your goal. There’s no food database, no daily inputs, no stats. You might use this app a few times a year on a weight loss / gain journey. You’d still need to use some other app or method to find out what your daily totals actually were. A companion app to this one would be lovely! Also, I found it funny that an app called “Fiber” doesn’t help you track or set a goal for, you know…fiber. ### 1/5 — This app does nothing *2024-07-11* Basically this is a calorie calculator can add anything to the app food calories etc… ### 1/5 — This app doesn’t do anything? *2024-06-04* It gave me my recommended macro breakdown. That’s it. Where do people track daily intake? Other than settings there is no interactivity with this app. Side note; this app gave me a waaaay low calorie recommendation. It’s way off 😳 ### 1/5 — Am I missing something? *2024-06-03* I thought this was going to be a calorie tracking app. After the quiz, a chart came up with a total calorie intake suggestion but that was all. There was not a place to log food and keep track of calories, fat, carbs, etc. ### 5/5 — Great user experience! Nice App! *2024-03-26, version 2.1.0* The app is very clear on its function. It went very smooth to calculate the calories! Definitely good for those who want to keep diet and having plans to control calories! ### 5/5 — Easy Fitness *2024-03-23, version 2.1.0* Such an easy and intuitive app to use. Simple data that tells you exactly what you need to know to reach your fitness goals, without any messing around. ### 1/5 — Completely pointless *2024-03-01, version 2.1.0* Just show you what you should be eating and if you select Low Carb it selected for me 232g of carb per day. ### 5/5 — Easy to use, clean style, and user friendly *2024-02-04* Fiber: Calorie Tracker is an exceptional app that seamlessly integrates into my daily routine. Its user-friendly interface makes tracking calories and fiber intake a breeze. The insightful charts and personalized recommendations enhance my nutritional awareness. A must-have for anyone committed to a healthier lifestyle! ### 4/5 — Great app, could use more features. *2024-02-03* I’ve used similar ones in the past during my fitness journey. The app itself is very simple and easy to use, with accurate macros and calories recommendations. The only suggestion that I have is for the developers to add some additional features that other similar apps have. Overall, I’m excited to begin using it! ## Frequently asked questions about Fiber ### What does the Fiber app do? The Fiber app is a free tool that calculates your daily caloric and macronutrient needs. It helps you achieve fitness goals like fat loss, muscle gain, or weight maintenance by providing precise calculations based on your body composition and activity level. ### How does the app calculate macros? Unlike traditional calculators, this app uses a sophisticated body fat-based method for macro calculations. It also takes into account your activity level and allows for real-time adjustments to your macro targets based on your goals and body composition changes. ### Is the Fiber app free to use? Yes, the Fiber app is completely free to use. It offers all its features without requiring any subscriptions, ads, or sign-ups, ensuring a confidential and uninterrupted user experience. ### Who is the Fiber app for? This app is designed for anyone looking to precisely track their nutrition for fitness goals. This includes individuals aiming for fat loss, muscle building, weight maintenance, athletes, and even those seeking to improve their overall health. ### What are the main benefits of using a macro calculator like Fiber? Macro calculators, like Fiber, offer more detailed insights than simple calorie counters, especially for specific goals like weight loss or muscle building. By accurately calculating and tracking macronutrients (carbohydrates, protein, and fat), users can better manage their intake to achieve desired body composition changes and optimal health. ## Version history (last 3 releases) ### 2.1.0 — 2024-02-01 Bug fixes and performance improvements. ### 2.0 — 2023-12-08 In this version, we made performance improvements and squashed a few bugs to make the experience better for all of you. ### 1.0 — 2023-10-27 No release notes. ## Apps similar to Fiber | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lose It! – Calorie Counter](https://appshunter.io/ios/app/lose-it-calorie-counter/id297368629) | 4.6 (3,895) | Free | Health & Fitness | | [AI Calorie Tracker by Yazio](https://appshunter.io/ios/app/ai-calorie-tracker-by-yazio/id946099227) | 4.6 (6,042) | Free | Health & Fitness | | [Carb Manager: Keto & Macro Log](https://appshunter.io/ios/app/carb-manager-keto-and-macro-log/id410089731) | 4.7 (73,324) | Free | Health & Fitness | | [MyFitnessPal: Calorie Counter](https://appshunter.io/ios/app/myfitnesspal-calorie-counter/id341232718) | 4.7 (2,335,298) | Free | Health & Fitness | | [Keto Diet App － Carb Tracker](https://appshunter.io/ios/app/keto-diet-app-carb-tracker/id1406879426) | 4.7 (81,453) | Free | Health & Fitness | | [Keto Diet App: Keto Manager](https://appshunter.io/ios/app/keto-diet-app-keto-manager/id1475764462) | 4.7 (9,382) | Free | Health & Fitness | --- *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 2026-06-10.*