# Zero vs Intermittent Fasting Tracker

Zero and Intermittent Fasting Tracker both sit at 4.8 stars, but that hides the real split: 97% of Intermittent Fasting Tracker's written reviews are positive against 33% of Zero's. Zero's advantage is chart position (#111 vs unranked) and ratings volume (445K vs 51K). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Zero sells 10 in-app purchases, starting at $9.99 per month and Intermittent Fasting Tracker sells 17 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Zero against 4.9 for Intermittent Fasting Tracker. That said, the two scores are not equally well evidenced: Zero has 445K ratings behind it against 51K, so its average is the more settled of the two. Written reviews are what separate them: 33% of Zero's written reviews are positive against 97% of Intermittent Fasting Tracker's.

Zero ships an update every 2 weeks, Intermittent Fasting Tracker every 10 days. Both last shipped on September 25, 2026.

## The numbers

| Metric | Zero | Intermittent Fasting Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (445K ratings)](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542/reviews) | **[4.9 (51K ratings)](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6448909309/reviews)** |
| Number of ratings | **445K** | 51K |
| Positive reviews | 32.6% of reviews | **96.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Freemium | Free with in-app purchases |
| Best chart rank | **#111** | — |
| Size | 238 MB | 109 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [Zero Longevity Science, Inc.](https://appshunter.io/developer/1397458636) | [Kai Oelfke](https://appshunter.io/developer/644779478) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-fasting-and-food-tracker/id1168348542)

**Currently charting:** #111 Top Grossing · Health & Fitness (US App Store)

This app tracks intermittent fasting and nutrition to help users achieve real body composition changes. It integrates fasting, protein intake, meals, hydration, and habits for a holistic approach to weight loss and metabolic health.

**Highlights:** Intermittent fasting timers and streaks, Smart meal logging with photo recognition, Personalized daily protein target tracking, Integrated fasting and protein tracking, Water and habit tracking, Science-based insights on fasting and nutrition

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zero Plus Subscription | $9.99 | per month |
| Zero Plus Subscription | $9.99 | per month |
| Zero Plus Subscription | $39.99 | per year |
| Zero Plus Subscription | $49.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $69.99 | per year |
| Zero Plus Subscription | $89.99 | per year |
| Zero Plus Subscription | $89.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 📊 Helpful tracking and data
- 💡 Informative learning resources
- 🔍 Detailed fasting information
- 🤝 Sense of community

**What reviewers complain about**

- 💰 Expensive premium subscription
- 🔒 Forced account creation
- 🙄 Intrusive ads and upsells
- 🤔 Inconsistent or confusing UI changes
- 🐛 Syncing and login issues

**Reported bugs**

- Password reset problems
- Inaccurate fasting time tracking
- Inability to exit trial without subscribing

**Requested features**

- Custom fasting periods longer than 24 hours
- Ability to edit fasting type and duration
- Integration with more health/fitness apps
- Water intake tracking
- Personalized fasting recommendations


### Intermittent Fasting Tracker

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6448909309)

This app offers a straightforward and private way to track intermittent fasting. It supports iPhone and Apple Watch, providing essential features like widgets, notifications, and progress charts without any advertisements. Ideal for both beginners and experienced fasters, it focuses on a simple user interface to support health and wellness goals.

**Highlights:** Interactive Widgets, Notifications, Streaks & Badges, Charts & Trends, Fasting Zones, iCloud Sync, Dark Mode

**Features:** Apple Watch app

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fasty Monthly Donation | $0.99 | per month |
| Fasty Basic Monthly | $0.99 | per month |
| Fasty Monthly Donation | $1.99 | per month |
| Fasty Basic Monthly | $1.99 | per month |
| Fasty Monthly Donation | $2.99 | per month |
| Fasty Basic Yearly | $4.99 | per year |
| Fasty Basic Yearly | $6.69 | per year |
| Fasty Pro Monthly | $6.99 | per month |
| Fasty Pro Yearly | $19.99 | per year |
| One Time Donation | $4.99 | one-time |
| Fasty Basic One Time | $9.99 | one-time |
| One Time Donation | $9.99 | one-time |
| One Time Donation | $14.99 | one-time |
| One Time Donation | $24.99 | one-time |
| One Time Donation | $34.99 | one-time |
| Fasty Pro One Time | $49.99 | one-time |
| One Time Donation | $49.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Straightforward fasting tracking
- 🔒 No ads or subscriptions
- 💡 Customizable fasting times
- 👍 Clean and intuitive interface

**What reviewers complain about**

- 🐛 Occasional issues with time tracking
- 💡 Desire for more customization options
- 💡 Request for monthly/yearly fasting view
- 💡 Interest in adding notes or logging features

**Reported bugs**

- Overlapping fasting/eating windows reported
- Inconsistencies in fasting time calculations

**Requested features**

- Ability to schedule and set reminders for fasts
- Option to manually log ketosis levels
- Export or share fasting data
- More detailed fasting stage information


## Frequently asked questions

### Is Zero free?

Zero is free to download, with in-app purchases available.

### Is Intermittent Fasting Tracker free?

Intermittent Fasting Tracker is free to download, with in-app purchases available.

### Which has better reviews, Zero or Intermittent Fasting Tracker?

Intermittent Fasting Tracker is rated higher. Zero averages 4.8 out of 5 from 445K ratings, while Intermittent Fasting Tracker averages 4.9 from 51K ratings.

### Do Zero or Intermittent Fasting Tracker have ads?

Neither Zero nor Intermittent Fasting Tracker shows ads.

### Which is updated more often, Zero or Intermittent Fasting Tracker?

Zero ships an update every 2 weeks, and Intermittent Fasting Tracker every 10 days. Most recently, Zero was updated on September 25, 2026 and Intermittent Fasting Tracker on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*