GOOD HABITS. HONEST PRICING.

The essentials, free.
The extras, up to you.

No account to make. No barcode limits. See what’s included and decide whether Plus fits your routine.

Calvin

The everyday essentials

Everything you need to find your rhythm.

$0/ month

No credit card. No account required.

  • Unlimited barcode scanning
  • Food search & full macros
  • Weight trends & calorie targets
  • Apple Health sync
  • Apple Watch, widgets & CSV export
Get Calvin free

Barcode scanning stays free. No scan limit.

Calvin Plus

A little extra help

Less manual work. A little more insight.

$49.99/ year

Billed yearly. Or $9.99 billed monthly.

  • Everything in Calvin free
  • AI meal-photo estimates
  • Deeper nutrition & trend insights
  • Google Health activity sync
Explore Calvin Plus

3-day trial for eligible subscribers.

Prices shown in USD. Local pricing, trial eligibility, and terms appear before confirmation in the App Store. Plus is optional; the free features stay free. Subscriptions renew automatically unless canceled. Subscription help.

The full picture, side by side.

FeatureCalvinCalvin Plus
Unlimited barcode scanningIncludedIncluded
Food search & full macrosIncludedIncluded
Weight trends & calorie targetsIncludedIncluded
Apple Health & Apple WatchIncludedIncluded
Widgets & CSV exportIncludedIncluded
AI meal-photo scanningIncluded
Deeper trend insightsIncluded
Google Health activity syncIncluded

THE DETAILS

A few good questions.

No surprises. Here’s what to know before getting started.

Is Calvin actually free?

Yes. Barcode scanning, food search, full macros, weight trends, and Apple Health sync are included without a subscription. Calvin Plus is optional and adds features such as AI meal-photo scanning.

Do I need to make an account?

No. Start using Calvin without signing up. Sign-in is optional, and it does not currently back up or restore your food log.

Is photo scanning free, too?

Barcode scanning is free and unlimited. AI meal-photo estimates require Calvin Plus. Always review the foods and portions before saving: the results are estimates, not exact measurements.

Does it work with Apple Watch and Apple Health?

Yes. Calvin connects to Apple Health with your permission and shows calories and macros on Apple Watch. The watch displays your day and syncs with your nearby iPhone; use your phone to log meals.

Where does my data live?

Your food log stays on your iPhone. Some optional features—such as food lookups, photo analysis, and connected services—send the data needed to work. The privacy policy explains each one.

Life’s full.
Tracking shouldn’t be a handful.

Scan a barcode. Log a meal. Start a routine that feels like you—no account required.

Download on the App Store

Free to download. Optional Calvin Plus.