OpenCal Calorie Macro Tracker
AI Powered Nutrition Tracking
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Track calories your way - log meals manually or let an agent do it via API. Privacy-first, no ads, 300K+ foods. Set goals, hit them.
OpenCal is the calorie and macro tracker built for how people eat. Simple, fast, and a beautiful app for everyone.
LOG ANYTHING, INSTANTLY
Search 1M+ foods with instant nutrition data. Scan barcodes in seconds. Photograph a meal and let AI identify ingredients and estimate macros. Or just type what you ate.
YOUR MACROS, YOUR GOALS
Set daily targets for calories, protein, carbs, and fat. OpenCal calculates personalized targets based on your height, weight, age, activity level, and goal. Watch your progress update in real-time.
MACROMATCH
Tell OpenCal what macros you have left for the day and it suggests recipes that fit perfectly. No more guessing what to eat to hit your protein goal.
AI AGENT-NATIVE
Every feature is accessible via REST API. Connect any AI assistant — log meals by describing what you ate in natural language, no app required. OpenCal is the first calorie tracker built for the age of AI.
PRIVACY FIRST
No ads. No data selling. Your nutrition data is yours — export it anytime, delete it entirely, or build on top of it with API keys you control.
OPENCAL PRO
• MacroMatch recipes tailored to your remaining macros
• Barcode scanner — log packaged foods in 2 seconds
• API access — connect any AI agent or build integrations
• Unlimited history — export all your data, no cutoff
$3.33/month billed yearly ($39.99/yr) or $6.99/month.
Subscription renews automatically. Cancel anytime in Settings > [Your Name] > Subscriptions.
Terms of Service: https://opencal.ai/terms
Privacy Policy: https://opencal.ai/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, NIKLAS FUNK, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- NIKLAS FUNK
- Size
- 11.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
English and 3 more
- English, French, German, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- OpenCal Pro Yearly $39.99
- OpenCal Pro Monthly $6.99
- Copyright
- © 2026 Niklas Funk