# Process & Control Engineering vs Six Sigma Brilliant

The clearest difference is price: Process & Control Engineering at Free against Six Sigma Brilliant's $13.99. Process & Control Engineering also leads on update cadence (every 7 months vs every 39 months). Six Sigma Brilliant's advantage is iOS requirement (12.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Process & Control Engineering is free to download; Six Sigma Brilliant costs $13.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Process & Control Engineering ships an update every 7 months, Six Sigma Brilliant every 39 months. The most recent releases landed on September 28, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Process & Control Engineering | Six Sigma Brilliant |
| --- | --- | --- |
| Price | **Free** | $13.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/six-sigma-brilliant/id1205168761/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 39 months |
| Monetization | — | Paid |
| Size | 31 MB | 6 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Datateam Business Media Ltd](https://appshunter.io/developer/531755760) | [Raj Kumar](https://appshunter.io/developer/1037581682) |

## What reviewers say

### 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


### Six Sigma Brilliant

[App page](https://appshunter.io/ios/app/six-sigma-brilliant/id1205168761)

This app provides comprehensive Lean Six Sigma knowledge, methodology, and tools for process optimization. It's designed for professionals to quickly access critical information and enhance project efficiency. Learn about various Six Sigma concepts, statistical tools, and implementation strategies.

**Highlights:** Lean Six Sigma knowledge base, Methodology and tools, Process optimization focus, Project efficiency enhancement, Statistical interpretation, Case studies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Process & Control Engineering free?

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

### Is Six Sigma Brilliant free?

Six Sigma Brilliant costs $13.99, with no in-app purchases.

### Do Process & Control Engineering or Six Sigma Brilliant have ads?

Neither Process & Control Engineering nor Six Sigma Brilliant shows ads.

### Which is updated more often, Process & Control Engineering or Six Sigma Brilliant?

Process & Control Engineering ships an update every 7 months, and Six Sigma Brilliant every 39 months. Most recently, Process & Control Engineering was updated on September 28, 2026 and Six Sigma Brilliant on September 17, 2026.

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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.*