See where every number comes from: USDA, the manufacturer, or an estimate that says so. Scanning is free. No streaks, no guilt.
Macroline is a calorie and macro tracker that shows where every number comes from. Each food carries its source: USDA, the manufacturer, the restaurant, the Open Food Facts community, or an estimate that says it is one. Type what you ate, scan a barcode, or search, and see what's left for the day at a glance.
KNOW WHERE YOUR NUMBERS COME FROM
Every food shows a source badge. Tap the badge to see exactly where the numbers came from. We never pass a guess off as a fact: an AI estimate is always labeled as one, and you can always adjust it.
LOG WITHOUT THE BURDEN
- Describe: type "grilled chicken with brown rice and broccoli" and Macroline turns it into logged entries, each with its source. No ten-tap forms.
- Scan: point your camera at any barcode. We match it against USDA, Open Food Facts, and our own catalog. Scanning is free.
- Search: type-ahead with brand, alias, and fuzzy matching.
- Recents, favorites, and saved meals: you eat the same foods on repeat. Re-log your usuals, or a whole meal, in a couple of taps.
HIT YOUR PROTEIN
Set a protein target with the built-in calculator and track toward it every day. (It is a starting point, adjust it with your dietitian.)
GLP-1 AND WEIGHT-LOSS MEDICATION TRACKING
Track semaglutide, tirzepatide, naltrexone-bupropion, phentermine, and more. See your dose-in-system over time, log side effects, and watch how it lines up with your week. (Macroline does not provide medical advice.)
YOUR BODY LOG
Bathroom breaks, how you feel, supplements, and your cycle, one tap each, right alongside your meals. Turn on only the sections you want.
WEIGHT TRENDS, NOT DAILY NOISE
Sync your weight with Apple Health and watch the trend over weeks instead of obsessing over the daily number.
CONNECT YOUR AI ASSISTANT
Macroline ships with an MCP server, so you can connect Claude or other AI tools to log meals, query your diary, and ask "how much protein have I had this week?" straight from your assistant.
USE IT ANYWHERE
Macroline also runs in your browser at my.macroline.app, so your diary follows you across your devices.
NO DIET SHAME
No streak pressure. No fasting nudges. No "you ate too much" messages. Tracking is for awareness. What you do with it is up to you.
PRO FEATURES
- Unlimited Describe (AI meal parsing)
- Cross-source food research
- MCP integration for AI assistants
- Priority support
Free tier includes search, scan, manual logging, recents, weight tracking, medication tracking, Apple Health sync, the protein calculator, and 3 Describe parses per day.
PRICING
Free with optional Pro:
- $4.99/month
- $39.99/year (save 33%)
Auto-renews unless canceled at least 24 hours before the end of the period.
PRIVACY
No third-party analytics, no ad SDKs, no selling your data. Account deletion is one tap in Settings. Read our policy at macroline.app/privacy.
This app is awesome. I’m on a GLP-1… I work out, track my food, watch my shot, and definitely watch my macros. My husband isn’t on a GLP-1, but he is a marathon runner who works out and trains hard. He watches his macros too. It’s really cool to have an app like this that covers it all and isn’t just specifically for the GLP-1 users or those who are athletic. I feel like this is great for anyone trying to keep an eye on what they do throughout the day. Highly recommend!
Choose what Today shows: hide the cards you don't use and move the ones you check most to the top. Tap Edit Today at the bottom of Today, or open it from Settings. Cards you hide on your phone stay hidden on my.macroline.app too.
Plus small fixes and improvements.
Version 1.10.8
The developer, Michael Calvert, 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:
Health & Fitness
Purchases
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Michael Calvert
Size
9.4 MB
Category
Health & Fitness
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.