Accuracy
How is ZMacros different from a calorie calculator?
A calculator applies a formula to your height and weight. ZMacros starts there, then learns your real burn from your own logs and weigh-ins. How adapting works.
Does my target change on its own?
No. When there's enough data, tap Recalculate and ZMacros applies what it has learned. It only moves your target as far as your data supports.
Do I need to log every day?
No, but the more complete days you log, the sooner the estimate settles. Days with nothing logged are left out rather than guessed.
How often should I weigh myself?
Most days gives the sharpest estimate. Daily swings don't matter; the trend is what's used.
Does it use my steps and workouts?
They're shown on your Today screen, and you can add calories on workout days. They aren't used to estimate your burn, because your weight already reflects them and counting them again would double-count.
How accurate is photo logging?
A photo estimate is a starting point, not a lab result. Every item comes back as a gram amount you can correct before you save it.
Plans
What's free?
Logging, barcode scanning, adaptive targets, the weight trend, micronutrients, activity and data export. Free also gives you 1 AI photo scan when you sign up, if you're 18 or over, and you can watch optional ads to earn more.
What does Premium add?
Premium adds 500 AI photo scans a month, removes ads and adds the training side: 16 goal-matched workout programs, next-set weight suggestions, personal records, a rest timer and workout history, plus animated card styles. Compare plans.
Are there ads?
On the free plan, yes: small ads marked "Ad", and optional rewarded ads you can choose to watch to earn extra AI photo scans. They are non-personalised. Premium has no ads. See the Privacy Policy for how ads work.
How do refunds work?
Subscriptions are bought through the App Store or Google Play, and refunds go through them. The Refund Policy explains how to ask.
Privacy and use
Can I use it offline?
Yes. Logging works without a connection and syncs later.
Can I get my data out, or delete it?
Yes. Export it any time, and delete your account in Settings › Account › Delete account, or from the website. See the Privacy Policy.
Who can use ZMacros?
ZMacros is for ages 16 and over, or older where local law requires it. AI photo scans are for adults (18 and over).
Is ZMacros medical advice?
No. Its numbers are estimates to help you track. Talk to a doctor or dietitian about medical conditions, pregnancy or eating disorders.
When does it launch?
Coming soon to iPhone; Android later.