Effortlessly log your meals by taking a photo, and this app will identify foods, estimate portions, and break down nutrition. You can also type entries, scan barcodes, or search for foods. Review your daily intake, track weight trends, and gain insights into your eating habits.
1.13
September 24, 2026
Bug fixes and performance improvements
Unlimited photo logging, insights and priority analysis
You take a photo of your meal, and Calvin identifies the foods, estimates portion sizes, and calculates calories, protein, carbs, fat, and fiber. It breaks down the nutrition for each item on the plate.
Yes, you can type entries in plain English (e.g., "coffee with oat milk"), scan barcodes on packaged foods, or search for foods directly within the app.
Calvin Free offers photo logging (20 analyses/day), plain-text entry, barcode scanning, water/weight tracking, basic insights, and 7 days of history. Calvin Pro increases photo analyses to 100/day and adds full history, advanced insights, weight predictions, priority processing, and data export.
Calvin Pro is available for $9.99 per month or $79.99 per year. The yearly subscription offers a discount of about 33%. Both plans include a 7-day free trial.
No, Calvin does not contain advertisements. The app is free to use with basic features and offers an optional Pro subscription for advanced features.
Calvin's readings are estimates and not lab measurements. It is a food logging tool designed to help steer your nutrition choices, not provide medical advice. Consult a doctor or registered dietitian for personalized nutrition needs.
The latest version, 1.12, was released on September 2, 2026. The app was initially released on January 27, 2026, indicating regular updates.
Calvin is currently supported on iPhone devices. It also integrates with Apple Health.
