# Calvin - AI Calorie Tracker — AI Meal Scan & Macro Log > 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/calvin-ai-calorie-tracker/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: 2026-09-11 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/calvin-ai-calorie-tracker/id6790968217/reviews.md ## What is Calvin? Calvin is an AI-powered calorie tracker that keeps the basics free. Barcode scanning and food search are free here. Most trackers moved them behind a subscription. Calvin does not. FREE, AND STAYING FREE - Barcode scanning for packaged food - Food database search, USDA Branded with Open Food Facts as a fallback - Manual logging with full macros: protein, carbs, fat, fiber, sugar, sodium - Common foods, recents and usuals, one tap to log again - Copy yesterday's whole log when today is empty - Recipes - Weight tracking with a smoothed trend line - Adaptive maintenance calories, back-calculated from your real weight trend so imperfect logging self-corrects against the scale - Apple Health sync: weigh-ins from a smart scale arrive on their own, with body-fat and lean-mass trends when your scale reports them - A direct Google Health connection - Sleep, HRV, resting heart rate and a daily recovery score - Weekly and monthly recaps, and your year in review - Home and Lock Screen widgets - An Apple Watch app and complication: calories left, every macro you track, and recovery at a glance - Siri and Shortcuts - CSV export NO ACCOUNT NEEDED, NO ADS Sign-in is optional and can be skipped. Everything above works without one, and your food log lives on your phone, not on a server. Linking Apple or Google is optional and does not upload or restore your food log; your log stays on your phone. LOGGING IN UNDER FIVE SECONDS Type a food name and everything you have logged before appears as you type. One tap logs it again. A built-in pantry handles staples like egg or apple with no keypad at all. READ AGAINST YOUR OWN USUAL, NOT A TEXTBOOK Sleep, HRV, resting heart rate and the rest are judged against your own recent range, so a number that is normal for you stays quiet. A recovery score sits at the top of the Health tab, blended from HRV, resting heart rate, sleep and breathing rate, with one sentence naming whichever of them actually moved it. HONEST NUMBERS Calories lead, macros sit behind them, and you choose which ones appear anywhere in the app. Turn calorie numbers off entirely for a gentler on-track-or-over view. CALVIN PLUS An AI meal photo scan that reads a whole plate into separate foods, counts the cooking oil a camera cannot see and asks before it stays, and takes a one-tap fix or a missing item without starting over, plus deeper insights. Monthly and annual plans are shown in your local App Store currency, with a 3-day free trial. Everything listed above stays free. 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 Calvin ### 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) ### 1.0.9 — 2026-09-10 Improved reliability for optional app-usage sharing and privacy controls, including retrying after you reconnect and deleting previously shared usage data. Also fixes an issue where closing the app immediately after logging food or confirming an edit could lose the change. ### 1.0.8 — 2026-09-09 Build 186 updates privacy wording, localized App Store metadata, and regional storefront screenshots. ### 1.0.7 — 2026-09-04 A security improvement: a couple of network calls carried device credentials in a way that could end up in server logs. They now travel more safely. No visible change to how the app works. Also: a couple of spots on the Fitness and Health tabs still said "Fitbit" after the previous update's rename to Google Health. Fixed. ### 1.0.5 — 2026-09-03 Connecting Google Health is now free for everyone — syncing your steps, activity and weigh-ins from it is still a Calvin Plus feature, but linking the account no longer requires a subscription. Behind the scenes: the server behind AI photo scanning, Smart Log and Google Health syncing moved to a faster backend. No change to what data is collected or how it's used. ### 1.0.4 — 2026-09-02 • Small polish and reliability improvements under the hood --- *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 2026-09-11.*