# CST Exam Prep 2026 AST NBSTSA vs Sterile Processing Technician

CST Exam Prep 2026 AST NBSTSA and Sterile Processing Technician both sit at 4.9 stars, but that hides the real split: 68% of CST Exam Prep 2026 AST NBSTSA's written reviews are positive against 33% of Sterile Processing Technician's. CST Exam Prep 2026 AST NBSTSA also leads on update cadence (fortnightly vs every 5 months) and ratings volume (993 vs 16). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. CST Exam Prep 2026 AST NBSTSA sells 7 in-app purchases, starting at $9.99 per 7 days and Sterile Processing Technician sells 4 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for CST Exam Prep 2026 AST NBSTSA against 4.8 for Sterile Processing Technician. That said, the two scores are not equally well evidenced: CST Exam Prep 2026 AST NBSTSA has 993 ratings behind it against 16, so its average is the more settled of the two. Written reviews are what separate them: 68% of CST Exam Prep 2026 AST NBSTSA's written reviews are positive against 33% of Sterile Processing Technician's.

CST Exam Prep 2026 AST NBSTSA ships an update fortnightly, Sterile Processing Technician every 5 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | CST Exam Prep 2026 AST NBSTSA | Sterile Processing Technician |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (993 ratings)](https://appshunter.io/ios/app/cst-exam-prep-2026-ast-nbstsa/id6476125216/reviews)** | [4.8 (16 ratings)](https://appshunter.io/ios/app/sterile-processing-technician/id6476984772/reviews) |
| Number of ratings | **993** | 16 |
| Positive reviews | **68.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 104 MB | 88 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [EZ Test Prep](https://appshunter.io/developer/1664527806) | [Erdem Kara](https://appshunter.io/developer/1015700209) |

## What reviewers say

### CST Exam Prep 2026 AST NBSTSA

[App page](https://appshunter.io/ios/app/cst-exam-prep-2026-ast-nbstsa/id6476125216)

Prepare for the Certified Surgical Technologist (CST) exam with expertly written questions and detailed explanations. Study on the go with adaptive difficulty, full-length practice exams, and progress tracking. Content is aligned with the latest NBSTSA guidelines and developed by experienced CSTs and educators.

**Highlights:** Expertly written practice questions, Straight-to-the-point explanations, Adaptive difficulty levels, Full-length practice exams, Progress tracking and study goals, Instant feedback, Offline study capability

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CST Surgical Technologist Prep | $9.99 | per 7 days |
| CST Surgical Technologist Prep | $24.99 | per month |
| CST Exam Prep Intro 2 | $24.99 | per month |
| CST Surgical Tech Exam Prep | $24.99 | per month |
| CST Surgical Technologist Prep | $64.99 | per 6 months |
| CST Exam Prep Intro 2 | $64.99 | per 6 months |
| CST Surgical Tech Exam Prep | $64.99 | per 6 months |

**What reviewers like**

- ✅ Helpful for exam prep
- 👍 User-friendly interface
- 🎯 Covers exam topics thoroughly
- 💡 Clear explanations of answers
- 📚 Bookmark and review incorrect answers

**What reviewers complain about**

- 💸 Expensive subscription
- 🔁 Repeats questions too often
- ❓ Incorrect answers marked as correct
- 🔄 Difficulty canceling subscription
- 💰 App still takes money after cancellation issues

**Reported bugs**

- Repeats similar questions too many times
- Incorrect answers marked as correct with correct explanation
- Question feed system is broken
- Question count is lower than advertised
- Difficulty canceling subscription

**Requested features**

- Option to focus on weak areas
- More new questions in daily quizzes
- Improved subscription cancellation process


### Sterile Processing Technician

[App page](https://appshunter.io/ios/app/sterile-processing-technician/id6476984772)

Prepare for your Sterile Processing and Distribution Technician Exam with an AI-driven learning platform. Access over 3500 practice questions and realistic mock tests to assess your readiness and master key concepts. Save your progress and stay confident for your exam journey.

**Highlights:** Over 3500 practice questions, AI-driven learning platform, Categorized topics, Realistic mock tests, Progress saving, Up-to-date content

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Weekly Subscription | $9.99 | per 7 days |
| Premium - Monthly Subscription | $24.99 | per month |
| Premium-Quarterly Subscription | $49.99 | per 3 months |
| Premium - Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is CST Exam Prep 2026 AST NBSTSA free?

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

### Is Sterile Processing Technician free?

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

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

CST Exam Prep 2026 AST NBSTSA is rated higher. CST Exam Prep 2026 AST NBSTSA averages 4.9 out of 5 from 993 ratings, while Sterile Processing Technician averages 4.8 from 16 ratings.

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

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

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

CST Exam Prep 2026 AST NBSTSA ships an update fortnightly, and Sterile Processing Technician every 5 months. Most recently, CST Exam Prep 2026 AST NBSTSA was updated on October 30, 2026 and Sterile Processing Technician on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*