# Ink World Magazine vs Process & Control Engineering

The clearest difference is iOS requirement: Ink World Magazine at 10.2 against Process & Control Engineering's 16.0. On price, update cadence, 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.

Ink World Magazine ships an update every 9 months, Process & Control Engineering every 7 months. The most recent releases landed on October 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Ink World Magazine | Process & Control Engineering |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Size | 8 MB | 31 MB |
| Requires iOS | **10.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RODMAN PUBLISHING CORP.](https://appshunter.io/developer/655048566) | [Datateam Business Media Ltd](https://appshunter.io/developer/531755760) |

## What reviewers say

### Ink World Magazine

[App page](https://appshunter.io/ios/app/ink-world-magazine/id698958812)

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

**In-app purchases:** none


### Process & Control Engineering

[App page](https://appshunter.io/ios/app/process-and-control-engineering/id973151584)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ink World Magazine free?

Ink World Magazine is free to download, with no in-app purchases.

### Is Process & Control Engineering free?

Process & Control Engineering is free to download, with no in-app purchases.

### Do Ink World Magazine or Process & Control Engineering have ads?

Neither Ink World Magazine nor Process & Control Engineering shows ads.

### Which is updated more often, Ink World Magazine or Process & Control Engineering?

Ink World Magazine ships an update every 9 months, and Process & Control Engineering every 7 months. Most recently, Ink World Magazine was updated on October 1, 2026 and Process & Control Engineering on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*