Zero vs Life Fasting Tracker: which intermittent fasting apps should you pick?
Our independent head-to-head from the 2026 edition of Best Intermittent Fasting Apps.
Zero
The reference fasting app – clean, research-backed, no nonsense.
8.7/ 10
Life Fasting Tracker
Free, dead-simple fasting tracker with social circles.
6.8/ 10
Head-to-head
| Zero | Life Fasting Tracker | |
|---|---|---|
| Our score | 8.7/10 | 6.8/10 |
| Pricing | Free; Plus $69.99/yr | Free |
| Best for | Most people starting IF | Anyone wanting a free option |
| Platforms | iOS, Android | iOS, Android |
Pros & cons
Zero pros
- Clean, focused UI
- Research-anchored content from credible advisors
- Good HealthKit integration
Zero cons
- Plus tier is needed for personalized plans
- Some content gates feel arbitrary
Life Fasting Tracker pros
- Free
- Group fasting features
Life Fasting Tracker cons
- Limited insights
- Development has been slow
Our verdict
Winner: Zero. The cleanest, most evidence-respecting fasting app. Free tier alone covers 90% of users.
In short
- Zero – The cleanest, most evidence-respecting fasting app. Free tier alone covers 90% of users.
- Life Fasting Tracker – Best free option.
See the full best intermittent fasting apps ranking for every app in this category, or browse all head-to-heads.