# Pipe Flow Calculations vs Chiller Calc Pro

The clearest difference is in-app purchases: Pipe Flow Calculations at none against Chiller Calc Pro's 2. 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. Chiller Calc Pro sells 2 in-app purchases, starting at $3.99 per month. Pipe Flow Calculations asks for nothing beyond the download.

## The numbers

| Metric | Pipe Flow Calculations | Chiller Calc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 17 MB | 35 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Application Services LLC](https://appshunter.io/developer/1896064953) | [Samet Nail Coban](https://appshunter.io/developer/6780620147) |

## What reviewers say

### Pipe Flow Calculations

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Chiller Calc Pro

[App page](https://appshunter.io/ios/app/chiller-calc-pro/id6799268602)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chiller Calc Pro Monthly | $3.99 | per month |
| Chiller Calc Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Pipe Flow Calculations free?

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

### Is Chiller Calc Pro free?

Chiller Calc Pro is free to download, with in-app purchases available.

### Do Pipe Flow Calculations or Chiller Calc Pro have ads?

Neither Pipe Flow Calculations nor Chiller Calc Pro 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.*