# Kiwa vs Pipe Flow Calculations

The clearest difference is in-app purchases: Pipe Flow Calculations at none against Kiwa's 3. Pipe Flow Calculations also leads on iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Kiwa sells 3 in-app purchases, starting at $1.99 per month. Pipe Flow Calculations asks for nothing beyond the download.

## The numbers

| Metric | Kiwa | Pipe Flow Calculations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 136 MB | 17 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Seize Times E-Commerce Co., Ltd.](https://appshunter.io/developer/368397197) | [Application Services LLC](https://appshunter.io/developer/1896064953) |

## What reviewers say

### Kiwa

[App page](https://appshunter.io/ios/app/kiwa-vsdvsdx-viewer/id6759024152)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kiwa Pro Monthly | $1.99 | per month |
| Kiwa Pro Yearly | $19.99 | per year |
| Kiwa Pro Lifetime | $39.99 | one-time |


### Pipe Flow Calculations

[App page](https://appshunter.io/ios/app/pipe-flow-calculations/id6765766469)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kiwa free?

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

### Is Pipe Flow Calculations free?

Pipe Flow Calculations is free to download, with no in-app purchases.

### Do Kiwa or Pipe Flow Calculations have ads?

Neither Kiwa nor Pipe Flow Calculations shows ads.

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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.*