Zolt is best for
Adaptive targets plus a coach that takes action
MyNetDiary is best for
A rich free tier and health-condition tracking
Use Zolt on
Both apps can learn from your weigh-ins. They differ in when they adjust and what the coach can do about it.
Zolt
MyNetDiary
Zolt learns from logged nutrition and changes in body weight, then keeps calorie and protein targets aligned with the intended rate of progress. The adaptive engine works without Coach V2 and without Apple Watch.
Apple Watch is optional. It adds sleep, recovery, activity, workouts, and health insights. Watch calories do not drive Zolt’s learned TDEE or its updates.
How Zolt learns your TDEE explains expenditure, calorie targets, and the starting estimate.
| Feature | Zolt | MyNetDiary | Edge |
|---|---|---|---|
| Adaptive calorie targets | Yes, core to every plan | Advanced AutoPilot on Premium (mobile only)4,7 | Even |
| Starting estimate | Estimate, then learned from your data | Institute of Medicine equations + target date4,8 | Even |
| Photo, voice, barcode logging | Photo, text, barcode, or by text message | Barcode and voice free; photo on Premium1,9 | Even |
| AI coach that can log and edit | Yes | AI Coach answers and reviews (Premium Plus)2,10 | Zolt |
| Nutrient depth | Macros plus fiber and micronutrients | 108 nutrients, free1,9 | MyNetDiary |
| Free tier | Trial / paid plans | Yes, ad-free1,9 | MyNetDiary |
| Platforms | iPhone, Android, Apple Watch, Mac (Apple silicon), web | iPhone, iPad, Android, Apple Watch, web3,6,9 | Even |
| Annual price with adaptive targets and AI coach | $39.99/year | $99.99/year (Premium Plus)1,11 | Zolt |
The real difference
This one is closer than most. MyNetDiary has a generous free tier, a staff-verified food database, and, on Premium, Advanced AutoPilot, which reviews your weight, activity, and food each week and sets next week’s targets. Zolt does the same core job with a coach that can actually log food and change your plan, in the app or over iMessage, for less than MyNetDiary charges for its AI tools.
Both apps believe a calorie target should learn from your weight. MyNetDiary does it as a weekly review on Premium, mobile only, and keeps its AI Coach in a pricier tier that, per its help center, works from your last seven days. Zolt keeps adaptation at the center of every plan and puts it behind one price, with a coach that can take action across the app and iMessage.
MyNetDiary starts from the Institute of Medicine’s energy equations and a target date. Advanced AutoPilot then reviews your logged weight, activity, and food each week, using trend weight to smooth daily swings, and sets new targets.
Zolt also starts from an estimate and learns from your intake and weight trend. The result is a visible TDEE you can follow on the Energy screen, with calorie and protein targets tied to your chosen pace.
MyNetDiary’s AI Coach, in Premium Plus, answers nutrition and app questions and reviews your day using the last seven days of data. Its help article points you to the right screens rather than making changes.
Zolt Coach can log food, correct entries, explain why a target moved, and prepare goal changes. The same coach works over iMessage, so you can handle a meal or a weigh-in without opening the app.
MyNetDiary has a free tier, Premium at $59.99 a year, and Premium Plus with the AI tools at $99.99 a year.
Zolt has one plan at $39.99 a year with a trial. The adaptive engine, logging, and coach come together.
Where MyNetDiary wins
MyNetDiary is one of the most generous free trackers around: barcode scanning, voice input, 108 nutrients, Apple Health and Apple Watch support, and no ads. Its database is staff-verified, it has strong tools for diabetes and GLP-1 users, and Advanced AutoPilot has adapted budgets from real weigh-ins since 2024.
Text Zolt in iMessage, WhatsApp, or Telegram to log a meal, fix an entry, record your weight, or ask how today fits the plan. It uses your real data and makes the change for you.
Use ChatGPT or Claude every day? Connect Zolt to either one to log food and check your numbers without switching apps. Set up the connector.
Published by Zolt, so we are not neutral. We use first-party product pages and store listings, show meaningful competitor strengths, and date facts that may change.