CanIEat: Histamine Diary
Histamine, Lactose & Coeliac
Only for iPhone
$0.99 · Designed for iPhone. Not verified for macOS.
iPhone
CanIEat helps you track meals, symptoms and patterns when living with histamine intolerance, lactose intolerance or coeliac disease. Record what you eat and how you feel, then explore the connections in your own diary.
Built by someone who lives with histamine intolerance. A simple personal diary that fits the way you prefer to log.
LOG IN SECONDS
• Database of 514 foods with information on histamine, lactose and gluten; histamine ratings are based on the SIGHI 2024 list
• Quick daily check-ins or detailed records of individual meals
• Reactions, symptoms, portions and your own notes
• Repeat your last meal with foods and portions already filled in
• Scan packaging text with the camera and search foods in all supported languages
EXPLORE YOUR PATTERNS
• See foods that appear in your records alongside reactions
• “What can I eat now?”: foods with enough observations and mostly reaction-free records, taking your profile into account
• Record counts, observation periods and an indicative confidence level
• Separate trends for daily check-ins and individual meals
• Calendar heatmap for an overview of recorded days
• Other factors such as stress, sleep, hormonal cycle and exercise
• Optional sleep reading from Apple Health to suggest the “Lack of sleep” factor
EVERYDAY FOODS AND REMINDERS
Set your everyday foods and confirm what you actually ate during each daily check-in. Choose your evening reminder time or switch reminders off; days with a record are skipped. Streaks and medals recognise regular logging.
YOUR DATA AND A REPORT FOR YOUR DOCTOR
• Your diary is stored on your device
• No account, no ads and no subscription. One-off purchase.
• JSON backups include foods, portions, symptoms, factors and settings
• Restore older backups and merge records with your existing history
• PDF reports include symptoms, factors, portions and separate check-ins from meals; optionally include reaction-free records too
LANGUAGES
Czech, English, German and Spanish — including food names and database notes. The app uses Czech text for Slovak.
CanIEat shows associations in your records. It does not replace a medical diagnosis or personalised advice.
IDEAS, FEEDBACK & BUG REPORTS
Help shape CanIEat. Share your ideas, feedback and bug reports on our developer Discord:
https://discord.com/invite/UeJEAZWG8T
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.2 — easier logging and clearer insights
• New German and Spanish support: interface, food names and database notes. Improved translations and food search across all languages.
• Repeat your last meal: foods and portions are filled in, while the new reaction is logged separately.
• Personal results respect your recorded reactions. “What can I eat now?” takes observation history and your profile into account.
• Statistics refresh after edits. Trends separate daily check-ins from individual meals and show record counts.
• More complete JSON backups, including symptoms, factors, portions and settings. Restore older backups and merge duplicate foods while preserving history.
• Switch evening reminders off or choose their time. Days with a record are skipped.
• Improved PDF reports for your doctor: portions, other factors and optional reaction-free records.
The developer, Jiri Kluciar, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jiri Kluciar
- Size
- 8.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 4 more
- English, Czech, German, Slovak, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jiří Klučiar

