# Root Cause Analysis (RCA) vs CRE Quality Engineer Exam

The clearest difference is in-app purchases: Root Cause Analysis (RCA) at none against CRE Quality Engineer Exam's 9. CRE Quality Engineer Exam's advantage is iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. CRE Quality Engineer Exam sells 9 in-app purchases, starting at $8.99 per 7 days. Root Cause Analysis (RCA) asks for nothing beyond the download.

## The numbers

| Metric | Root Cause Analysis (RCA) | CRE Quality Engineer Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/root-cause-analysis-rca/id6743373852/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 8 months |
| Monetization | Free | — |
| Size | 4 MB | 51 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vijay Gurav](https://appshunter.io/developer/1791521119) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### Root Cause Analysis (RCA)

[App page](https://appshunter.io/ios/app/root-cause-analysis-rca/id6743373852)

This app helps teams quickly identify and eliminate recurring problems using proven methodologies. It offers an intuitive interface and collaborative features to streamline problem-solving, reduce downtime, and enhance efficiency.

**Highlights:** 5 Whys methodology, Fishbone Diagram tool, Collaborative features, Intuitive interface, Data-driven insights, Problem-solving streamlining

**Features:** macOS Compatibility

**In-app purchases:** none


### CRE Quality Engineer Exam

[App page](https://appshunter.io/ios/app/cre-quality-engineer-exam/id6744003203)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CRE Weekly Full Access | $8.99 | per 7 days |
| CRE Monthly Full Access | $24.99 | per month |
| CRE Monthly Full Access | $34.99 | per month |
| CRE Quarterly Full Access | $55.99 | per 3 months |
| CRE Quarterly Full Access | $59.99 | per 3 months |
| CRE Semiannual Full Access | $75.99 | per 6 months |
| CRE Semiannual Full Access | $79.99 | per 6 months |
| CRE Annual Full Access | $109.99 | per year |
| CRE Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is Root Cause Analysis (RCA) free?

Root Cause Analysis (RCA) is free to download, with no in-app purchases.

### Is CRE Quality Engineer Exam free?

CRE Quality Engineer Exam is free to download, with in-app purchases available.

### Do Root Cause Analysis (RCA) or CRE Quality Engineer Exam have ads?

Neither Root Cause Analysis (RCA) nor CRE Quality Engineer Exam 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.*