Fasty vs Zero Fast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasty
This app offers a straightforward and privacy-focused way to track intermittent fasting. It provides tools for timing fasts, monitoring weight and BMI, and maintaining progress streaks without requiring sign-up or displaying ads.
- One-tap fasting timer
- Multiple fasting programs
- Custom fast durations
- Weight tracking
- BMI tracking
- Progress and streak tracking
- Ad-free experience
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Fasty – The Simplest Way to Track Your Fast No ads. No sign up. Just fasting. Fasty is the most minimal, privacy-friendly intermittent fasting tracker on the App Store. Whether you’re just getting started or deep into your fasting journey, Fasty helps you stay consistent—without distractions or data collection. No accounts. No emails. No tracking—except your fasts (and your weight, if you want). What You’ll Get: - One-tap fasting timer - Tons of different fasting programs - Custom Fast Durations - Simple weight tracking - Easy BMI Tracking - Streaks & progress tracking - Clean, distraction-free design - Absolutely no ads Whether you’re doing a 16:8 fast, OMAD, or something custom, Fasty makes it easy to stay on track with your health goals—without giving up your privacy. Fasting doesn’t have to be complicated. Download Fasty and keep it simple. Our app uses the accepted BMI formula of BMI = kg/m2 more info can be found here: https://www.heartfoundation.org.au/bmi-calculator Terms Of Use can be found at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.termsfeed.com/live/05dde8a0-027e-412a-91ba-690f48580523
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 review sentiment: Zero Fast at 100% against Fasty's 8%. Zero Fast also leads on update cadence (every 2 weeks vs every 9 months) and rating (5.0 vs 4.7). Fasty's advantage is ratings volume (1.5K vs 1) and iOS requirement (16.5 vs 26.0). On price, ads, in-app purchases and monetization model 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. Fasty sells 3 in-app purchases, starting at $9.99 per 7 days and Zero Fast sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Zero Fast holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Fasty has 1.5K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 8% of Fasty's written reviews are positive against 100% of Zero Fast's.
Fasty ships an update every 9 months, Zero Fast every 2 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | Fasty | Zero Fast |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.5K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 7.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.5K — better | 1 |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.5 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 35 MB |
| Age rating | 4+ | 12+ |
| Developer | Gabe Rogers | APPE LATTE LIMITED |
Customer experience
Fasty
Zero Fast
In-app purchases
Fasty
- Weekly$9.997 Days
- Monthly$24.991 Month
- Annual7 Days trial$34.991 Year
Zero Fast
- Zero Fast Monthly$6.991 Month
- Zero Fast Annually$49.991 Year
