# AST CST Exam Prep vs CRCST Prep

The clearest difference is price: AST CST Exam Prep at Free against CRCST Prep's $19.99. CRCST Prep's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

AST CST Exam Prep is free to download; CRCST Prep costs $19.99 up front. AST CST Exam Prep sells 2 in-app purchases, starting at $24.99 per month. CRCST Prep asks for nothing beyond the download.

## The numbers

| Metric | AST CST Exam Prep | CRCST Prep |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[4.6 (284 ratings)](https://appshunter.io/ios/app/ast-cst-exam-prep/id1569418216/reviews)** | — |
| Number of ratings | **284** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 61 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [MastrAPI](https://appshunter.io/developer/1618627725) | [Medical Relevant Inc](https://appshunter.io/developer/1736847152) |

## What reviewers say

### AST CST Exam Prep

[App page](https://appshunter.io/ios/app/ast-cst-exam-prep/id1569418216)

Prepare for your Certified Surgical Technologist (CST) exam with a personalized study plan. Practice with over 550 questions, track your progress, and compare your scores to the community average to boost your confidence and pass on your first attempt.

**Highlights:** Personalized study plan, 550+ practice questions, Track strengths and weaknesses, Detailed test statistics, Community score comparison, Multiple exam options

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly with trial | $24.99 | per month |
| Lifetime access | $99.99 | one-time |

**What reviewers like**

- 👍 Useful information
- 👍 App proved useful for exam prep
- 👍 Passed exam with app's help

**What reviewers complain about**

- 🐛 Answers change after submission
- 🐛 Incorrect scoring
- 🐛 Repeated questions
- 🐛 Misspellings and poor wording
- 🐛 Answers marked incorrect when correct

**Reported bugs**

- Answers change after submission
- Incorrect scoring
- Repeated questions
- Misspellings and poor wording
- Answers marked incorrect when correct

**Requested features**

- iPad version of the app
- Personalizing tests
- Better questions


### CRCST Prep

[App page](https://appshunter.io/ios/app/crcst-prep-sterile-processing/id6754696538)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AST CST Exam Prep free?

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

### Is CRCST Prep free?

CRCST Prep costs $19.99, with no in-app purchases.

### Do AST CST Exam Prep or CRCST Prep have ads?

Neither AST CST Exam Prep nor CRCST Prep 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.*