# Intermittent Fasting vs 16

The clearest difference is review sentiment: 16 at 100% against Intermittent Fasting's 50%. 16 also leads on iOS requirement (13.0 vs 16.0). Intermittent Fasting's advantage is rating (4.8 vs 4.0) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Intermittent Fasting sells 11 in-app purchases, starting at $3.99 per 7 days and 16 sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Intermittent Fasting holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Intermittent Fasting has 1K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of Intermittent Fasting's written reviews are positive against 100% of 16's, so the app with the better star average is not the one people write more warmly about.

Intermittent Fasting ships an update every 2 weeks, 16 every 6 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Intermittent Fasting | 16 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1K ratings)](https://appshunter.io/ios/app/intermittent-fasting-fastify/id1638123672/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/168-fasting-timer/id6449992745/reviews) |
| Number of ratings | **1K** | 4 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 54 MB | 54 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AirShape](https://appshunter.io/developer/1638120760) | [Maple Labs Co., Ltd](https://appshunter.io/developer/1320450180) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-fastify/id1638123672)

Track your eating schedule, receive guidance, and enhance your daily fasting experience. Achieve your weight goals, improve health, and increase energy within a supportive community.

**Highlights:** Fasting schedule tracking, Personalized fasting plans, Health and energy boost tips, Weight loss guidance, Fasting community support, Beginner and experienced plans

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $3.99 | per 7 days |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Fasting Subscription | $6.99 | per month |
| Monthly Fasting Subscription | $10.49 | per month |
| Monthly Fasting Subscription | $12.49 | per month |
| Intermittent Fasting Timer | $12.99 | per 3 months |
| Quarterly Fasting Subscription | $16.99 | per 3 months |
| The Fasting | $19.99 | per 3 months |
| App Intermittent Fasting | $29.99 | per year |
| Annually Fasting Subscription | $39.99 | per year |
| Annually Subscription | $59.99 | per year |

**What reviewers like**

- 👍 Great app design
- 🚀 Simple and easy to use
- 💡 Helpful for weight loss and fasting
- 🚀 Tracks fasting progress well

**What reviewers complain about**

- 🐛 App freezes on goals page
- 🐛 Help link crashes the app
- 🐛 Incomplete information display
- 🐛 UI issues with screen fitting
- 🐛 Inability to edit fasting logs

**Reported bugs**

- App freezes on goals page
- Help link crashes the app
- Incomplete information display
- UI issues with screen fitting
- Inability to edit fasting logs

**Requested features**

- Allow changing app icon color
- Add more diet and recipe tips
- Implement dark mode option
- Provide more detailed statistics


### 16

[App page](https://appshunter.io/ios/app/168-fasting-timer/id6449992745)

Track your intermittent fasting journey with customizable plans and real-time analytics. Log meals and water intake, and receive personalized meal tips to support your weight loss goals. Supports various popular fasting methods.

**Highlights:** Intermittent fasting timer, Custom fasting plans, Real-time analytics, Meal and water tracker, Meal tips and recipes, Multiple fasting modes

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Yearly Premium | $12.99 | per year |
| Premium | $12.99 | per 3 months |
| Premium | $24.99 | per 3 months |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is 16 free?

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

### Which has better reviews, Intermittent Fasting or 16?

Intermittent Fasting is rated higher. Intermittent Fasting averages 4.8 out of 5 from 1K ratings, while 16 averages 4.0 from 4 ratings.

### Do Intermittent Fasting or 16 have ads?

16 shows ads; Intermittent Fasting does not.

### Which is updated more often, Intermittent Fasting or 16?

Intermittent Fasting ships an update every 2 weeks, and 16 every 6 weeks. Most recently, Intermittent Fasting was updated on September 22, 2026 and 16 on September 17, 2026.

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