# Process Engineer Calc vs ProcessChem

The clearest difference is device support: ProcessChem at 3 against Process Engineer Calc's 1. ProcessChem also leads on iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Process Engineer Calc | ProcessChem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Size | 11 MB | 406 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [冯泰 蔡](https://appshunter.io/developer/1896641064) | [Ron Mangalam Jacob](https://appshunter.io/developer/6796077932) |

## What reviewers say

### Process Engineer Calc

[App page](https://appshunter.io/ios/app/process-engineer-calc-lms/id6774295442)

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

**In-app purchases:** none


### ProcessChem

[App page](https://appshunter.io/ios/app/processchem/id6796077930)

**In-app purchases:** none


## Frequently asked questions

### Is Process Engineer Calc free?

Process Engineer Calc is free to download, with no in-app purchases.

### Is ProcessChem free?

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

### Do Process Engineer Calc or ProcessChem have ads?

Neither Process Engineer Calc nor ProcessChem 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.*