# Sterile Processing vs CRCST Exam

The clearest difference is rating: CRCST Exam at 5.0 against Sterile Processing's 4.8. CRCST Exam also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Sterile Processing sells 3 in-app purchases, starting at $9.99 per month and CRCST Exam sells 3 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CRCST Exam holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

## The numbers

| Metric | Sterile Processing | CRCST Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4 ratings)](https://appshunter.io/ios/app/sterile-processing-crcst-prep/id6758952508/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/crcst-exam-practice-test-2026/id6793446774/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 70 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Deeun Inc.](https://appshunter.io/developer/1691824695) | [Wiktor Pabich](https://appshunter.io/developer/1842657816) |

## What reviewers say

### Sterile Processing

[App page](https://appshunter.io/ios/app/sterile-processing-crcst-prep/id6758952508)

Prepare for the CRCST exam with practice questions, instrument identification drills, and study guides. Plan your study routine, track progress, and review core sterile processing topics. Offers a free experience with optional monthly, annual, or lifetime subscriptions for full access.

**Highlights:** 320 practice questions, Instrument identification drill, Daily study tasks, Five study guides, 24 flashcards, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Monthly | $9.99 | per month |
| Prep Pro Annual | $29.99 | per year |
| Pro - Lifetime Access | $59.99 | one-time |


### CRCST Exam

[App page](https://appshunter.io/ios/app/crcst-exam-practice-test-2026/id6793446774)

Prepare for the CRCST exam with comprehensive practice tests and study tools. Track your progress, identify weak areas, and build confidence for test day. Includes flashcards and a mock exam mirroring the real test format.

**Highlights:** Covers all CRCST content areas, Progress tracking by category, Flashcards and cheatsheet, 150-question mock exam, Exam deadline setting, Streak building

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $7.99 | per 7 days |
| Annual Promo | $34.99 | per year |
| Annual | $49.99 | per year |


## Frequently asked questions

### Is Sterile Processing free?

Sterile Processing is free to download, with in-app purchases available.

### Is CRCST Exam free?

CRCST Exam is free to download, with in-app purchases available.

### Which has better reviews, Sterile Processing or CRCST Exam?

CRCST Exam is rated higher. Sterile Processing averages 4.8 out of 5 from 4 ratings, while CRCST Exam averages 5.0 from 2 ratings.

### Do Sterile Processing or CRCST Exam have ads?

Neither Sterile Processing nor CRCST 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.*