# Marrow Health โ€” All your health data, one app > All Apple Health metrics, food, and workout logging in one private app. (iPhone/iPad app by JOHN AIDAN HALL.) - Source: https://appshunter.io/ios/app/marrow-health/id6800819435 (this page in markdown: same URL + `.md`) - Developer: [JOHN AIDAN HALL](https://appshunter.io/developer/6800819437) - Category: Health & Fitness, Utilities - Price: Free - Rating: 5.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 ยท 7 MB - Languages: American English - Released: 2026-09-01 - Data updated: 2026-09-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/marrow-health/id6800819435/reviews.md ## What is Marrow Health? Marrow puts every Apple Health metric in one place, adds food and workout logging, and gives all of it back to you as files, automations, or a live connection to your AI. Free, no account, no subscription. EVERY METRIC, NOT A CURATED FEW Marrow reads 172 Apple Health data types: steps, heart rate, HRV, sleep stages, blood oxygen, respiratory rate, walking steadiness, body composition, cycle tracking, and the long tail Apple never puts in a chart. Add its own meal diary and strength log and you are tracking 178 data series in one place. If your watch or a connected app records it, Marrow shows it, with daily, weekly, and monthly trends. FOOD LOGGING THAT IS ACTUALLY FAST Photograph a meal and get a nutrition estimate you review and edit before it is logged. Scan a barcode. Or search a USDA food database built into the app, which works with no signal at all. Marrow tracks 39 nutrients per meal, not just calories, and writes it all back to Apple Health. WORKOUTS, STRENGTH AND CARDIO Log sets and reps against an exercise catalog, or record cardio and see the route. Workout history sits next to the health metrics it moved, so you can see what your training is actually doing. YOUR DATA LEAVES WHEN YOU WANT IT TO Export CSV, JSON, or GPX. Schedule automations that post to a server you choose. Pair your own self-hosted mirror. Marrow was built by someone who got tired of health data being trapped in an app that would not give it back. BUILT FOR AI, IF YOU WANT IT Marrow can serve your health data over the Model Context Protocol, so Claude, Cursor, or any MCP client can read it with a token you control. It ships turned off, runs on your own device, and costs nothing. WHAT MARROW DOES NOT DO No account. No subscription. No ads. No analytics or tracking SDKs. No selling data. Your health data stays on your iPhone unless you deliberately send it somewhere, and the app makes it obvious when that happens. Requires iOS 17 or later and Apple Health. Marrow is a wellness tool. It does not diagnose, treat, cure, or prevent any condition, and it does not give medical advice. ## Key features - Consolidates 172+ Apple Health metrics - Fast food and meal logging with nutrition estimates - Strength and cardio workout logging - Data export to CSV, JSON, or GPX - AI integration via Model Context Protocol - No account, subscription, or ads ## Frequently asked questions about Marrow Health ### What health data does Marrow track? Marrow tracks 172 Apple Health data types, including steps, heart rate, HRV, sleep stages, blood oxygen, and respiratory rate. It also allows logging of 39 nutrients per meal and workout details. ### How does Marrow handle user data privacy? Marrow prioritizes privacy by not requiring an account, subscription, or ads. Your health data stays on your iPhone unless you choose to export or send it elsewhere, with clear indications when this occurs. ### Can I export my health data from Marrow? Yes, Marrow allows you to export your data in CSV, JSON, or GPX formats. You can also schedule automations to post data to a server of your choice. ### Does Marrow have ads? No, Marrow is ad-free. The app explicitly states it does not have ads, analytics, or tracking SDKs, ensuring an uninterrupted user experience. ### What devices is Marrow compatible with? Marrow requires iOS 17 or later and is compatible with iPhones. It also relies on Apple Health data, so a compatible Apple Watch or other connected devices are beneficial. ### How often is Marrow updated? The latest version of Marrow is 1.1, which was last updated on September 3, 2026. This indicates a recent update, suggesting ongoing development and support. ### What is the age rating for Marrow? Marrow has an age rating of 4+. This means it is suitable for children and adults, with no mature content or themes. ### Can Marrow connect to AI? Yes, Marrow can serve your health data over the Model Context Protocol. This allows AI models like Claude or Cursor to read your data using a token you control, with this feature turned off by default. ## Version history (last 2 releases) ### 1.1 โ€” 2026-09-03 Sets are logged as reps x weight, the way you count them mid-set, and every set row is the same height. Minimize a workout to a banner and keep using the rest of the app. The timer keeps counting; one tap brings the logger back. Back out of an accidental Finish. The session and its Apple Health workout are rolled back as if it never happened. Search finds what you typed: exact names first, extra words cost, and exercises trained this week wear a small clock. Tap any diary entry to change today's portion in place, or copy a past meal into today at any amount. Quick-log buttons flash a check when the tap lands. Add a line of detail to a meal photo before it scans, for what the camera cannot see. The scan banner clears itself after five seconds. ### 1.0 โ€” 2026-09-01 No release notes. --- *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 2026-09-10.*