# Simple Calorie Tracker: Calvin — Macros, Fitness & Health > AI calorie and macro tracker with barcode scanning and health integrations. (iPhone/iPad app by Kevin Miguel Estrada Garcia.) - Source: https://appshunter.io/ios/app/simple-calorie-tracker-calvin/id6790968217 (this page in markdown: same URL + `.md`) - Developer: [Kevin Miguel Estrada Garcia](https://appshunter.io/developer/6790968219) - Category: Health & Fitness, Food & Drink - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 12+ - Requires: iOS 18.0 · 15 MB - Languages: American English, European Spanish - Released: 2026-08-28 - Data updated: 2026-09-30 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/simple-calorie-tracker-calvin/id6790968217/reviews.md ## What is Simple Calorie Tracker? Calvin is a simple calorie, macro, fitness, and health tracker that keeps the basics free. Track food, calories, macros, weight, workouts, steps, sleep, recovery, and health trends in one place — without ads or requiring an account. Barcode scanning and food search are free. Most calorie trackers moved them behind a subscription. Calvin does not. FREE, AND STAYING FREE • Barcode scanning for packaged foods • Food search with USDA Branded and Open Food Facts • Calorie, macro, protein, carb, fat, fiber, sugar, and sodium tracking • Fast manual logging, common foods, recents, usuals, one-tap repeat logging, and copy yesterday's log • Custom recipes • Weight tracking with a smoothed trend line and adaptive maintenance calories based on your real weight trend • Fitness tracking for workouts, steps, distance, and active time • Apple Health integration and automatic compatible smart-scale weigh-ins • Body fat and lean mass trends when available • Google Health connection • Sleep, HRV, resting heart rate, personal baselines, and a daily recovery score • Weekly and monthly recaps, plus year in review • Home Screen and Lock Screen widgets • Apple Watch app and complication • Siri, Shortcuts, and CSV export FAST FOOD LOGGING Start typing a food and Calvin surfaces foods you've logged before. One tap logs it again. The built-in pantry makes everyday staples like eggs, apples, rice, and chicken quick to add. CALORIES & MACROS, YOUR WAY Calories stay front and center while macros and nutrients are there when you want them. Choose which metrics appear throughout the app. Turn calorie numbers off for a simpler on-track-or-over view. FITNESS, WEIGHT & MAINTENANCE CALORIES Keep workouts and daily activity alongside nutrition. Track weight with a smoothed trend line, and let Calvin adapt your maintenance-calorie estimate over time based on your real weight trend. HEALTH & RECOVERY Bring together sleep, HRV, resting heart rate, breathing rate, activity, and other available health signals. Calvin compares supported metrics with your recent baseline. Your daily recovery score summarizes how you're doing and highlights the signals that changed. APPLE HEALTH & SMART SCALES Connect Apple Health to bring supported fitness and health data into Calvin. Compatible smart-scale weigh-ins can appear automatically, including body fat and lean mass when your scale provides them. Connections are optional. APPLE WATCH Check calories remaining, your chosen macros, and recovery from the Calvin Apple Watch app and complication. NO ACCOUNT NEEDED. NO ADS. Use Calvin without creating an account. Your food log lives on your device, not on a Calvin server. Connecting Apple or Google is optional and does not upload or restore your food log. WEEKLY, MONTHLY & YEARLY TRENDS See patterns across nutrition and health data with weekly and monthly recaps and a year in review. CALVIN PLUS — AI MEAL SCANNER Calvin Plus adds AI-powered meal photo scanning and deeper insights. Take a photo and Calvin identifies foods on your plate and estimates their nutrition. It can account for things a photo may miss, like cooking oil, and asks before keeping uncertain additions. Adjust portions, add a missing item, or make a correction without starting over. Monthly and annual plans are available in your local App Store currency with a 3-day free trial. Barcode scanning, food search, calorie and macro tracking, fitness, weight, health features, and the other core features above remain free. SIMPLE BY DESIGN Calvin helps you understand nutrition, fitness, weight, and health without turning every meal into homework. Track what matters. Ignore what doesn't. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calvinhealth.com/privacy ## Key features - AI meal photo scan - Barcode scanning - Food database search - Manual macro logging - Weight tracking with trend line - Apple Health & Google Health sync - Home and Lock Screen widgets ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Calvin Plus | $9.99 | per month | | Calvin Plus Annual | $49.99 | per year | ## Frequently asked questions about Simple Calorie Tracker ### Does Calvin have ads? No, Calvin is ad-free. The app explicitly states 'NO ADS' and provides all core features without advertisements. ### How much does Calvin cost? Calvin offers a free version with core features like barcode scanning and food search. An optional subscription, Calvin Plus, is available for advanced AI features, with pricing starting at $9.99/month and $49.99/year, both including a 3-day free trial. ### What devices does Calvin support? Calvin is available on iPhone and Apple Watch, offering seamless integration across these devices. It also supports Apple Health and Google Health for broader data synchronization. ### How often is Calvin updated? The app was last updated on September 10, 2026, indicating recent development and ongoing support. The latest version is 1.0.9. ### Can I use Calvin without an account? Yes, signing in is optional. All features, including food logging and weight tracking, work without an account, and your data is stored locally on your phone. ### What kind of health data does Calvin track? Beyond calories and macros, Calvin tracks weight with a trend line, and can sync sleep, HRV, resting heart rate, and recovery scores from Apple Health or Google Health. ### Is Calvin suitable for younger users? Calvin has an age rating of 12+, making it appropriate for teenagers and older users interested in tracking their nutrition and health. ### Can I export my data from Calvin? Yes, Calvin supports CSV export, allowing you to download your logged data for further analysis or use in other applications. ## Version history (last 5 releases) ### 1.1.9 — 2026-09-29 • Calvin has a new name on your Home Screen. • Updated App Store listing details. ### 1.1.8 — 2026-09-27 The app is now labeled Calvin on your Home Screen. ### 1.1.7 — 2026-09-26 Swipe or drag between Track, Fitness, and Health with the updated footer tabs. ### 1.1.6 — 2026-09-25 Updated the app name and refined sleep chart colors. ### 1.1.5 — 2026-09-23 This update improves reliability and adds optional, privacy-preserving usage analytics to help improve Calvin. Sharing stays off by default and can be enabled in Settings. ## Apps similar to Simple Calorie Tracker | App | Rating | Price | Category | | --- | --- | --- | --- | | [Dreamfire](https://appshunter.io/ios/app/dreamfire/id6746138156) | 5.0 (2) | Free | Health & Fitness | | [Calvin: Calorie Counter](https://appshunter.io/ios/app/calvin-calorie-counter/id6758075571) | 5.0 (2) | Free | Health & Fitness | | [NextSet - Weight Train Smarter](https://appshunter.io/ios/app/nextset-weight-train-smarter/id6758898625) | 5.0 (9) | Free | Health & Fitness | | [DIAT: Meal Scan & Calories](https://appshunter.io/ios/app/diat-meal-scan-and-calories/id6781678457) | — | Free | Health & Fitness | | [Calicat: See How You Eat](https://appshunter.io/ios/app/calicat-see-how-you-eat/id6757156850) | — | Free | Health & Fitness | | [CalTrack : Calorie Counter](https://appshunter.io/ios/app/caltrack-calorie-counter/id6783740478) | 4.7 (20) | 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 2026-09-30.*