Diet AI: Calorie Tracker vs Zero: Fasting & Food Tracker
At a glance
| Attribute | ||
|---|---|---|
| Subtitle | Food, Macro, Meal, Cal Counter | Intermittent Fasting Timer |
| Developer | LUMINATION AI LTD | Zero Longevity Science, Inc. |
| App Store rating | 4.71 (456 reviews) | 4.82 (445187 reviews) |
| Pricing | Free · 3 in-app purchase option(s) | Free · 2 in-app purchase option(s) |
| Trial | A 7-day free trial is available, which automatically converts to a paid subscription if not canceled. | Free trial available for Zero Plus subscription. |
Pricing & trial
| Attribute | ||
|---|---|---|
| Summary | Free · 3 in-app purchase option(s) | Free · 2 in-app purchase option(s) |
| Trial | A 7-day free trial is available, which automatically converts to a paid subscription if not canceled. | Free trial available for Zero Plus subscription. |
Who each app suits best
Diet AI: Calorie Tracker
- Calorie & Macro Tracking — Individuals focused on precise dietary intake and understanding their macronutrient balance.
- AI-Guided Meal Planning — Users seeking automated diet plans and recipe suggestions tailored to their fitness goals.
- Intermittent Fasting — Those practicing or interested in structured fasting with integrated tracking features.
Zero: Fasting & Food Tracker
- Intermittent Fasting Beginners — Provides clear structure and educational content to start a fasting routine.
- Protein-Focused Dieters — Ideal for those wanting to track protein intake alongside fasting windows.
Feature checklist
Coverage from our catalog flags. Values are editorial signals, not a guarantee of every device build.
| Feature | ||
|---|---|---|
| AI Photo logging | Yes | Yes |
| AI Audio logging | No | No |
| AI text logging | Yes | No |
| Barcode scanner | No | No |
| Apple Health | No | Yes |
| Macro tracking | Yes | Yes |
| Micronutrients | Yes | No |
| Water tracking | No | Yes |
| Workout tracking | No | No |
| Fasting | Yes | Yes |
| Connect your coach | No | No |
| Logging accuracy | Yes | Yes |
Scores
Editorial model scores on our scale — distinct from star ratings in app stores.
| Criterion | ||
|---|---|---|
| Overall | 9.5 | 8 |
| Accuracy | 9.3 | 7.8 |
| Beginner Friendliness | 9.4 | 7.9 |
| Coachability | 9.7 | 6.9 |
| Ease Of Use | 9.6 | 8.1 |
| Feature Depth | 10 | 8.5 |
| Pricing Value | 8.7 | 7.2 |
| User Feedback | 9.5 | 8 |
Review themes
Short synthesis of what users often praise or criticize — not a substitute for reading recent reviews yourself.
Highlights users liked
Diet AI: Calorie Tracker
—
Zero: Fasting & Food Tracker
Fasting timer; Weight loss results
Common complaints
Diet AI: Calorie Tracker
Billing & Subscription Issues; Core Functionality Problems
Zero: Fasting & Food Tracker
High subscription cost; Inflexible fasting presets
Bottom line
For most people prioritising overall polish and scores in our dataset, Diet AI: Calorie Tracker is the stronger default — still compare pricing and features above before you switch.