Open Food Diary brings meal logging, hydration, weight, and daily notes into one nutrition journal. Users can record breakfast, lunch, dinner, and snacks, search foods through Open Food Facts or add entries manually, and save frequently used foods. The app charts calories, macronutrients, fiber, water, and weight across several time ranges, with customizable daily targets and units. Its AI assistant is described as running on-device and can help users reflect on habits or consider practical next steps. The listing offers a seven-day trial with access to all features; after that, a monthly or annual subscription is required to continue using the app. Prices were not specified in the captured description. Nutrition values depend on the selected or entered food data, so this diary is best treated as a personal tracking aid rather than medical guidance.

Open Food Diary
A meal and nutrition diary for tracking food, water, weight, and personal goals, with food search and an on-device AI assistant.
Overview
A closer look at Open Food Diary.
A closer look
App screenshots
Choose with confidence
The useful details.
What it does
- Log meals, snacks, water, weight, and optional notes about hunger or energy.
- Search Open Food Facts, enter foods manually, and save frequently used items.
- Review nutrition and weight trends over 7 days, 30 days, 3 months, or 6 months.
- Set custom nutrition and hydration goals and use an AI assistant described as processing conversations on-device.
A good fit for
- People who want a nutrition diary that combines meals, hydration, weight, and personal notes.
Worth knowing
- A seven-day trial is followed by a required monthly or annual subscription; the captured description did not state prices.
- Food data may need manual entry or correction; verify values before using them to guide health decisions.
- The listing describes the AI conversations as local but does not explain the storage or sync behavior of every other diary field.
Frequently asked questions
Answers based on the app’s official listing and reviewed information.
What is Open Food Diary used for?
A meal and nutrition diary for tracking food, water, weight, and personal goals, with food search and an on-device AI assistant.
What can you do with Open Food Diary?
Log meals, snacks, water, weight, and optional notes about hunger or energy. Search Open Food Facts, enter foods manually, and save frequently used items. Review nutrition and weight trends over 7 days, 30 days, 3 months, or 6 months. Set custom nutrition and hydration goals and use an AI assistant described as processing conversations on-device.
Who is Open Food Diary designed for?
People who want a nutrition diary that combines meals, hydration, weight, and personal notes.
What should you know before downloading Open Food Diary?
A seven-day trial is followed by a required monthly or annual subscription; the captured description did not state prices. Food data may need manual entry or correction; verify values before using them to guide health decisions. The listing describes the AI conversations as local but does not explain the storage or sync behavior of every other diary field.
Does Open Food Diary include paid features?
A seven-day free trial is followed by a required monthly or annual subscription. The captured listing did not state prices; check the App Store for current regional terms.
Which platforms support Open Food Diary?
Greatooly's reviewed app information lists iOS.
Researched from official sources; this is not a hands-on review. Last checked 2026-11-04.
Keep exploring
More apps that might be a good fit.
Cami: Baby Tracker
Cami shares family logs for feeds, sleep, diapers, pumping, growth, and medicines, with timers, trends, and offline entry.
Baby Tracker - Our Tiny Days
Our Tiny Days records a baby's feeding, sleep, diapers, growth, health details, and daily milestones on iPhone and iPad.
CradleNote: Baby Tracker
CradleNote shares baby-care logs, timers, growth activities, developmental guidance, and private family memories across caregivers.






