# Kiwatch vs PipeFall

The clearest difference is in-app purchases: Kiwatch at none against PipeFall's 4. Kiwatch also leads on device support (3 vs 1) and iOS requirement (14.5 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. PipeFall sells 4 in-app purchases, starting at $1.99 per 7 days. Kiwatch asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 17, 2026 and July 27, 2026 respectively.

## The numbers

| Metric | Kiwatch | PipeFall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 46 MB | 2 MB |
| Requires iOS | **14.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KIWATCH](https://appshunter.io/developer/472296091) | [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889) |

## What reviewers say

### Kiwatch

[App page](https://appshunter.io/ios/app/kiwatch/id472295228)

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

**In-app purchases:** none


### PipeFall

[App page](https://appshunter.io/ios/app/pipefall-pipe-and-drain-sizing/id6773148982)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Kiwatch free?

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

### Is PipeFall free?

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

### Do Kiwatch or PipeFall have ads?

Neither Kiwatch nor PipeFall shows ads.

### Which is updated more often, Kiwatch or PipeFall?

Kiwatch ships an update every 2 months, and PipeFall every 2 months. Most recently, Kiwatch was updated on September 17, 2026 and PipeFall on July 27, 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.*