# 16/8 vs Loop

The clearest difference is in-app purchases: 16/8 at none against Loop's 4. Loop's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Loop sells 3 in-app purchases, starting at $0.99 per 7 days. 16/8 asks for nothing beyond the download.

16/8 ships an update every 8 days, Loop every 2 weeks. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 16/8 | Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/168-fasting-and-water-tracker/id6751299580/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 52 MB | 35 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pug Health LLC](https://appshunter.io/developer/425676529) | [DIVALTO SYSTEMS - FZCO](https://appshunter.io/developer/1868318670) |

## What reviewers say

### 16/8

[App page](https://appshunter.io/ios/app/168-fasting-and-water-tracker/id6751299580)

This app simplifies intermittent fasting with a 16:8 schedule and integrates hydration tracking to enhance your fasting experience. It helps you build a consistent daily routine for better focus and sustained fasting.

**Highlights:** One-tap 16:8 fasting start, Instant fasting status display, Water intake logging, Daily routine consistency, Hydration benefits during fasting

**Features:** macOS Compatibility

**In-app purchases:** none


### Loop

[App page](https://appshunter.io/ios/app/loop-fasting-tracker/id6757866126)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per 7 days |
| Premium | $3.99 | per month |
| Premium | $19.99 | per year |


## Frequently asked questions

### Is 16/8 free?

16/8 is free to download, with no in-app purchases.

### Is Loop free?

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

### Do 16/8 or Loop have ads?

Neither 16/8 nor Loop shows ads.

### Which is updated more often, 16/8 or Loop?

16/8 ships an update every 8 days, and Loop every 2 weeks. Most recently, 16/8 was updated on October 16, 2026 and Loop on October 14, 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.*