# CST Exam Prep 2026 AST vs CRCST Sterile Processing Prep

The clearest difference is update cadence: CRCST Sterile Processing Prep at every 2 months against CST Exam Prep 2026 AST's every 11 months. CST Exam Prep 2026 AST's advantage is ratings volume (46 vs 1) and device support (3 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. CST Exam Prep 2026 AST sells 4 in-app purchases, starting at $8.49 per month and CRCST Sterile Processing Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CRCST Sterile Processing Prep holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: CST Exam Prep 2026 AST has 46 ratings behind it against 1, so its average is the more settled of the two.

CST Exam Prep 2026 AST ships an update every 11 months, CRCST Sterile Processing Prep every 2 months. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CST Exam Prep 2026 AST | CRCST Sterile Processing Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (46 ratings)](https://appshunter.io/ios/app/cst-exam-prep-2026-ast/id6477819215/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crcst-sterile-processing-prep/id6787889891/reviews)** |
| Number of ratings | **46** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 48 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Get Exam](https://appshunter.io/developer/1529117519) | [Jinyoung Lee](https://appshunter.io/developer/1880091360) |

## What reviewers say

### CST Exam Prep 2026 AST

[App page](https://appshunter.io/ios/app/cst-exam-prep-2026-ast/id6477819215)

Prepare for your Certified Surgical Technologist exam with over 1600 practice questions and 800 flashcards. Master all exam areas with realistic simulations and detailed rationales. Study anytime, anywhere with offline access and free updates for the latest guidelines.

**Highlights:** 1600+ exam-like questions, 800+ flashcards, 12+ practice exams, Covers all exam areas, Offline access, Free updates, Realistic exam simulation

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 - Month Premium | $8.49 | per month |
| 1 - Week Premium | $8.99 | per 7 days |
| 1 - Month Premium | $16.99 | per month |
| 3 Months Premium | $35.99 | per 3 months |


### CRCST Sterile Processing Prep

[App page](https://appshunter.io/ios/app/crcst-sterile-processing-prep/id6787889891)

Prepare for the CRCST sterile processing exam with a comprehensive practice bank. It offers over 1,200 original questions with detailed explanations for each option, helping you understand the reasoning behind correct and incorrect answers. Includes mock exams and flashcards for effective study.

**Highlights:** 1,297 original practice questions, Detailed per-option explanations, Full-length timed mock exam, Wrong-answer review, 361 flashcards, Offline access, Practice by content area

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CRCST Premium Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is CST Exam Prep 2026 AST free?

CST Exam Prep 2026 AST is free to download, with in-app purchases available.

### Is CRCST Sterile Processing Prep free?

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

### Which has better reviews, CST Exam Prep 2026 AST or CRCST Sterile Processing Prep?

CRCST Sterile Processing Prep is rated higher. CST Exam Prep 2026 AST averages 4.8 out of 5 from 46 ratings, while CRCST Sterile Processing Prep averages 5.0 from 1 ratings.

### Do CST Exam Prep 2026 AST or CRCST Sterile Processing Prep have ads?

Neither CST Exam Prep 2026 AST nor CRCST Sterile Processing Prep shows ads.

### Which is updated more often, CST Exam Prep 2026 AST or CRCST Sterile Processing Prep?

CST Exam Prep 2026 AST ships an update every 11 months, and CRCST Sterile Processing Prep every 2 months. Most recently, CST Exam Prep 2026 AST was updated on October 20, 2026 and CRCST Sterile Processing Prep on October 29, 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.*