# Unit Converter Engineering Pro vs Pipe Flow Calculations

The clearest difference is in-app purchases: Pipe Flow Calculations at none against Unit Converter Engineering Pro's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter Engineering Pro sells 2 in-app purchases, starting at $5.99 per 7 days. Pipe Flow Calculations asks for nothing beyond the download.

## The numbers

| Metric | Unit Converter Engineering Pro | Pipe Flow Calculations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 17 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kaiguri Tech](https://appshunter.io/developer/1864995084) | [Application Services LLC](https://appshunter.io/developer/1896064953) |

## What reviewers say

### Unit Converter Engineering Pro

[App page](https://appshunter.io/ios/app/unit-converter-engineering-pro/id6757166485)

This app provides precise unit conversions for engineers, scientists, and students. It supports over 100 units across 35 categories, including scientific notation and 9-digit decimal precision. The tool works offline and adheres to SI, NIST, and ISO standards.

**Highlights:** Over 100 units in 35+ categories, Scientific notation support, 9-digit decimal precision, SI, NIST, ISO compliant, Offline functionality, Specialized units included

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | $5.99 | per 7 days |
| Yearly Plan | $19.99 | per year |


### 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 Unit Converter Engineering Pro free?

Unit Converter Engineering Pro 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 Unit Converter Engineering Pro or Pipe Flow Calculations have ads?

Neither Unit Converter Engineering Pro 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.*