# CST Exam Prep 2026 AST vs Sterile Processing Tech Exam

The clearest difference is update cadence: Sterile Processing Tech Exam at every 3 weeks against CST Exam Prep 2026 AST's every 11 months. CST Exam Prep 2026 AST's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model 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 Sterile Processing Tech Exam sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

CST Exam Prep 2026 AST ships an update every 11 months, Sterile Processing Tech Exam every 3 weeks. The most recent releases landed on August 26, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | CST Exam Prep 2026 AST | Sterile Processing Tech Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (39 ratings)](https://appshunter.io/ios/app/cst-exam-prep-2026-ast/id6477819215/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 45 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Get Exam](https://appshunter.io/developer/1529117519) | [Md Tariqul Islam](https://appshunter.io/developer/1789667629) |

## 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 |


### Sterile Processing Tech Exam

[App page](https://appshunter.io/ios/app/sterile-processing-tech-exam/id6747091287)

Prepare for your Certified Sterile Processing Technician exam with over 1400 practice questions, flashcards, and mock exams. Track your progress and master all five CBSPD domains anytime, anywhere, even offline.

**Highlights:** 1400+ practice questions with explanations, 600+ flashcards for key terms, Timed mock exams, Topic-based quizzes, Progress analytics, Offline access

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $17.99 | per year |
| Unlimited Plan | $17.99 | 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 Sterile Processing Tech Exam free?

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

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

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

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

CST Exam Prep 2026 AST ships an update every 11 months, and Sterile Processing Tech Exam every 3 weeks. Most recently, CST Exam Prep 2026 AST was updated on August 26, 2026 and Sterile Processing Tech Exam on June 7, 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.*