# AST CST Exam Prep 2026 vs AST Study Guide 4th Edition

The clearest difference is price: AST CST Exam Prep 2026 at Free against AST Study Guide 4th Edition's $65.00. AST CST Exam Prep 2026 also leads on iOS requirement (13.0 vs 15.6). AST Study Guide 4th Edition's advantage is in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 5 months). On ads and device support there is nothing between them.

AST CST Exam Prep 2026 is free to download; AST Study Guide 4th Edition costs $65.00 up front. AST CST Exam Prep 2026 sells 3 in-app purchases, starting at $5.99 per 7 days. AST Study Guide 4th Edition asks for nothing beyond the download.

AST CST Exam Prep 2026 ships an update every 5 months, AST Study Guide 4th Edition every 2 weeks. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AST CST Exam Prep 2026 | AST Study Guide 4th Edition |
| --- | --- | --- |
| Price | **Free** | $65.00 |
| Rating | **[5.0 (37 ratings)](https://appshunter.io/ios/app/ast-cst-exam-prep-2026/id6478266732/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 48 MB | 27 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chutima Busaraprapakul](https://appshunter.io/developer/1706710113) | [Association of Surgical Techologists](https://appshunter.io/developer/645664784) |

## What reviewers say

### AST CST Exam Prep 2026

[App page](https://appshunter.io/ios/app/ast-cst-exam-prep-2026/id6478266732)

Prepare for the AST CST certification exam with expert-designed questions and a personalized study plan. This app offers a scientific study system, detailed explanations, and simulated quizzes to boost your confidence and help you pass on your first attempt.

**Highlights:** Scientific study system, 900+ specialized questions, Detailed explanations, Simulated exam quizzes, AI-powered tracking, Multiple test modes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Weekly) | $5.99 | per 7 days |
| Premium (Monthly) | $17.99 | per month |
| Premium (Lifetime) | $99.99 | one-time |


### AST Study Guide 4th Edition

[App page](https://appshunter.io/ios/app/ast-study-guide-4th-edition/id6745573067)

Prepare for your Surgical Technology certification exam with a comprehensive study guide. Review essential concepts, practice with over 2,000 realistic questions, and build confidence for exam day through flexible study options.

**Highlights:** Detailed content review of core curriculum, Over 2,000 practice questions, 5 certifying practice exams, Focused or randomized study modes, Easy-to-use format for efficient studying, Familiarity with exam question formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AST CST Exam Prep 2026 free?

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

### Is AST Study Guide 4th Edition free?

AST Study Guide 4th Edition costs $65.00, with no in-app purchases.

### Do AST CST Exam Prep 2026 or AST Study Guide 4th Edition have ads?

Neither AST CST Exam Prep 2026 nor AST Study Guide 4th Edition shows ads.

### Which is updated more often, AST CST Exam Prep 2026 or AST Study Guide 4th Edition?

AST CST Exam Prep 2026 ships an update every 5 months, and AST Study Guide 4th Edition every 2 weeks. Most recently, AST CST Exam Prep 2026 was updated on October 30, 2026 and AST Study Guide 4th Edition on October 16, 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.*