# WeeWatcher vs Fasty

The clearest difference is review sentiment: WeeWatcher at 100% against Fasty's 8%. WeeWatcher also leads on in-app purchases (none vs 3) and rating (5.0 vs 4.7). Fasty's advantage is ratings volume (1.5K vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Fasty sells 3 in-app purchases, starting at $9.99 per 7 days. WeeWatcher asks for nothing beyond the download.

WeeWatcher 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: 100% of WeeWatcher's written reviews are positive against 8% of Fasty's.

WeeWatcher ships an update every 8 months, Fasty every 9 months. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | WeeWatcher | Fasty |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/weewatcher/id6739890847/reviews)** | [4.7 (1.5K ratings)](https://appshunter.io/ios/app/fasty-intermittent-fasting/id6744280079/reviews) |
| Number of ratings | 1 | **1.5K** |
| Positive reviews | **100.0% of reviews** | 7.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 9 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 28 MB | 5 MB |
| Requires iOS | **15.1** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Raquel Nishimoto](https://appshunter.io/developer/1645612007) | [Gabe Rogers](https://appshunter.io/developer/1584630702) |

## What reviewers say

### WeeWatcher

[App page](https://appshunter.io/ios/app/weewatcher/id6739890847)

Easily log and manage your dog's bathroom activities to ensure their well-being. This app helps both new and experienced pet parents stay organized with simple tracking and profile management.

**Highlights:** Log wees and poos, Edit or delete logs, Dog profile management, Simplify dog care routine, Prioritize pet well-being

**Features:** macOS Compatibility

**In-app purchases:** none


### Fasty

[App page](https://appshunter.io/ios/app/fasty-intermittent-fasting/id6744280079)

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.

**Highlights:** One-tap fasting timer, Multiple fasting programs, Custom fast durations, Weight tracking, BMI tracking, Progress and streak tracking, Ad-free experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly | $24.99 | per month |
| Annual | $34.99 | per year |


## Frequently asked questions

### Is WeeWatcher free?

WeeWatcher is free to download, with no in-app purchases.

### Is Fasty free?

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

### Which has better reviews, WeeWatcher or Fasty?

WeeWatcher is rated higher. WeeWatcher averages 5.0 out of 5 from 1 ratings, while Fasty averages 4.7 from 1.5K ratings.

### Do WeeWatcher or Fasty have ads?

Neither WeeWatcher nor Fasty shows ads.

### Which is updated more often, WeeWatcher or Fasty?

WeeWatcher ships an update every 8 months, and Fasty every 9 months. Most recently, WeeWatcher was updated on October 6, 2026 and Fasty on October 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.*