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

The clearest difference is price: AST CST Test Prep 2026 at Free against AST Study Guide 4th Edition's $65.00. AST CST Test 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 4 months). On review sentiment, ads and device support there is nothing between them.

AST CST Test Prep 2026 is free to download; AST Study Guide 4th Edition costs $65.00 up front. AST CST Test 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 Test Prep 2026 ships an update every 4 months, AST Study Guide 4th Edition every 2 weeks. The most recent releases landed on October 11, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AST CST Test Prep 2026 | AST Study Guide 4th Edition |
| --- | --- | --- |
| Price | **Free** | $65.00 |
| Rating | **[4.7 (74 ratings)](https://appshunter.io/ios/app/ast-cst-test-prep-2026/id6449639659/reviews)** | — |
| Number of ratings | **74** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Subscription | **Paid** |
| Size | 53 MB | 27 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [秀娟 周](https://appshunter.io/developer/1670536523) | [Association of Surgical Techologists](https://appshunter.io/developer/645664784) |

## What reviewers say

### AST CST Test Prep 2026

[App page](https://appshunter.io/ios/app/ast-cst-test-prep-2026/id6449639659)

Prepare for your Surgical Technologist certification exam with over 900 practice questions and detailed explanations. This app offers multiple test modes and performance tracking to help you study efficiently and confidently pass your CST exam.

**Highlights:** Over 900 practice questions, Detailed answer explanations, Multiple test modes, Subject classification, Performance tracking, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AST CST Premium (1 Week) | $5.99 | per 7 days |
| CST Prep Premium (1 Month) | $17.99 | per month |
| AST CST Premium (3 Months) | $39.99 | per 3 months |


### 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 Test Prep 2026 free?

AST CST Test 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 Test Prep 2026 or AST Study Guide 4th Edition have ads?

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

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

AST CST Test Prep 2026 ships an update every 4 months, and AST Study Guide 4th Edition every 2 weeks. Most recently, AST CST Test Prep 2026 was updated on October 11, 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.*