Intermittent Fasting vs Zero Fast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intermittent Fasting
Track your intermittent fasting routine with this intuitive app. It offers features for both beginners and experienced fasters to maintain a successful fasting schedule.
- Intermittent fasting tracker
- Beginner-friendly interface
- Supports experienced practitioners
- Intuitive routine maintenance
- Health journey transformation
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Transform your health journey with IF24 - a simple, intuitive intermittent fasting tracker. Start a fast in one tap and watch your body move through each phase, from fed to deep fat burn, ketosis and autophagy. Whether you're new to 16:8 or an experienced faster, IF24 gives you everything you need to stay consistent. Features: • One-tap start, stop and reset timer • Live fasting stages: fed, sugar, fat burn, ketosis, autophagy • Adjust your start time in 10-minute steps • Runs in the background - keeps counting even when your phone is locked • Free, private, no account - all data stays on your device Disclaimer: This app does not provide medical advice. Please consult a doctor before making any health-related decisions.
Zero Fast
Track your intermittent fasting journey with an AI-powered coach. Get personalized plans, real-time metabolic insights, and science-backed education to support your weight management and metabolic health goals. Log hydration, weight, and mood to optimize your fasting experience.
- AI Fasting Coach
- Personalized weekly fasting plans
- Multiple fasting profiles
- Real-time metabolic tracking
- Hydration logging
- Weight and progress dashboard
- Apple Health integration
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Your fast, explained as it happens. Zero Fast times your fast, shows you the moment your body switches to fat-burning and ketosis, and lets you race friends in group challenges. No calorie counting. No strict diets.
Screenshots
Verdict
The clearest difference is in-app purchases: Intermittent Fasting at none against Zero Fast's 2. Intermittent Fasting also leads on ratings volume (5 vs 1) and iOS requirement (17.6 vs 26.0). On price, rating, review sentiment and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Zero Fast sells 2 in-app purchases, starting at $6.99 per month. Intermittent Fasting asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Intermittent Fasting against 5.0 for Zero Fast. That said, the two scores are not equally well evidenced: Intermittent Fasting has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Intermittent Fasting ships an update every 8 days, Zero Fast every 2 weeks. Both last shipped on October 3, 2026.
| Parameter | Intermittent Fasting | Zero Fast |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 8 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 35 MB |
| Age rating | 12+ | 12+ |
| Developer | LEONID NIFANTIJEV | APPE LATTE LIMITED |
Customer experience
Intermittent Fasting
Zero Fast
In-app purchases
Intermittent Fasting
No in-app purchases
Zero Fast
- Zero Fast Monthly$6.991 Month
- Zero Fast Annually$49.991 Year
Questions
Is Intermittent Fasting free?
Is Zero Fast free?
Which has better reviews, Intermittent Fasting or Zero Fast?
Do Intermittent Fasting or Zero Fast have ads?
Which is updated more often, Intermittent Fasting or Zero Fast?
Other comparisons
