Speak it. Log it.
"A chicken caesar wrap with extra parmesan and a coke." Macroline parses natural language, finds the right foods, and logs the right portions. Voice or text, your call.
Honest macro tracking
Just say what
you ate.
The honest macro tracker. Every number shows its real source: USDA, the label, or a clear estimate.
Free tier with everything that matters · Pro $4.99/mo unlocks AI input + Claude · or use the web app
Sourced macros, every meal
Honest data.
Every food links to its source — USDA, manufacturer pages, official restaurant nutrition. Tap any number to see where it came from. No more bad community entries with wrong macros.
Log from Claude. Or ChatGPT. Anywhere.
Macroline runs as an MCP server, so any modern AI assistant can log meals for you. Talk to Claude on your laptop, ChatGPT on your phone — it all lands in your diary.
What's inside
Everything you need, nothing that nags.
- A home screen that gets out of the way. Today's calories, protein, your trend, and your usuals, all at a glance.
- Protein target, calculated. Enter your weight and goal, get a starting protein number to track toward. It's a starting point; adjust it with your dietitian.
- Your usuals, a couple of taps away. You don't eat a thousand foods, you eat the same twenty. Re-log them from Recents without searching.
- Trends, not noise. Sync your weight and watch the multi-week trend line instead of the daily bounce.
- Built for GLP-1. Log your dose and side effects, and see your dose-in-system across the week. Macroline is not medical advice.
Real food. Real numbers.
Every meal you log carries a provenance tier and a citation — the warmth of real food, backed by data you can actually trust.
Every number, sourced.
Macroline is built on a different principle than most trackers: show your work. Every food row in our database carries a provenance tier and a citation URL.
Computed
Recipe foods derived from authoritative ingredients with summed macros. Math is verifiable.
Estimated
AI-researched from cross-checked sources when no official data exists. Cited and flagged.
Unverified
User-submitted entries, awaiting community confirmation. Visible but never silently trusted.
Our promises
Never sold
Your data isn't a product.
Never trained
We don't feed your meals to AI models.
Export anytime
CSV + JSON, your whole history.
Delete in one tap
Cascades through every record.
Built by one person who got tired of bad food data.
I'm Mike. I built Macroline because every macro tracker I tried lied to me — bad community entries, wrong serving sizes, "estimates" that were guesses. The whole product is one bet: if every number can be traced to a real source, people will trust it.
If something's off, I read the support inbox personally. Email me anytime at info@macroline.app.
— Mike, founder
Macroline is on the App Store.
Free to download, with everything that matters in the free tier. Pro ($4.99/mo) unlocks AI meal logging and the Claude integration.
Download on the App Store →No iPhone? The full app runs in your browser at my.macroline.app.