Zero vs DoFasting: 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
DoFasting
Fasting + workout + meal-plan bundle.
7.2/ 10
Head-to-head
| Zero | DoFasting | |
|---|---|---|
| Our score | 8.7/10 | 7.2/10 |
| Pricing | Free; Plus $69.99/yr | $46.99/3 months |
| Best for | Most people starting IF | All-in-one starter bundle |
| 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
DoFasting pros
- Includes workouts and recipes
- Quiz-driven personalization
DoFasting cons
- Quiz pricing tactics are aggressive
- Jack of all trades
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.
- DoFasting – Decent bundle, slick funnel. Watch the auto-renew.
See the full best intermittent fasting apps ranking for every app in this category, or browse all head-to-heads.