# PipeDN vs Pipe Flow Calculations

The clearest difference is in-app purchases: Pipe Flow Calculations at none against PipeDN's 3. Pipe Flow Calculations also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. PipeDN sells 3 in-app purchases, starting at $7.99 per month. Pipe Flow Calculations asks for nothing beyond the download.

## The numbers

| Metric | PipeDN | Pipe Flow Calculations |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 40 MB | 17 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AQUILES DE LIMA](https://appshunter.io/developer/1883397199) | [Application Services LLC](https://appshunter.io/developer/1896064953) |

## What reviewers say

### PipeDN

[App page](https://appshunter.io/ios/app/pipedn/id6760237428)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PipeDN Pro | $7.99 | per month |
| PipeDN Pro | $49.99 | per year |
| PipeDN Pro | $79.99 | 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 PipeDN free?

PipeDN 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 PipeDN or Pipe Flow Calculations have ads?

Neither PipeDN 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.*