# CSIS Exam Prep 2026 vs Sterile Processing

The clearest difference is update cadence: Sterile Processing at every 4 months against CSIS Exam Prep 2026's every 12 months. CSIS Exam Prep 2026's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CSIS Exam Prep 2026 sells 5 in-app purchases, starting at $8.99 per 7 days and Sterile Processing sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

CSIS Exam Prep 2026 ships an update every 12 months, Sterile Processing every 4 months. Both last shipped on November 9, 2026.

## The numbers

| Metric | CSIS Exam Prep 2026 | Sterile Processing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/sterile-processing-crcst-prep/id6758952508/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 57 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Exam Prep OU](https://appshunter.io/developer/1689642184) | [Deeun Inc.](https://appshunter.io/developer/1691824695) |

## What reviewers say

### CSIS Exam Prep 2026

[App page](https://appshunter.io/ios/app/csis-exam-prep-2026/id6754504559)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CSIS Weekly Full Access | $8.99 | per 7 days |
| CSIS Monthly Full Access | $19.99 | per month |
| CSIS Monthly Full Access | $19.99 | per month |
| CSIS Quarterly Full Access | $44.99 | per 3 months |
| CSIS Quarterly Full Access | $44.99 | per 3 months |


### Sterile Processing

[App page](https://appshunter.io/ios/app/sterile-processing-crcst-prep/id6758952508)

Prepare for the CRCST exam with practice questions, instrument identification drills, and study guides. Plan your study routine, track progress, and review core sterile processing topics. Offers a free experience with optional monthly, annual, or lifetime subscriptions for full access.

**Highlights:** 320 practice questions, Instrument identification drill, Daily study tasks, Five study guides, 24 flashcards, Progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Monthly | $9.99 | per month |
| Prep Pro Annual | $29.99 | per year |
| Pro - Lifetime Access | $59.99 | one-time |


## Frequently asked questions

### Is CSIS Exam Prep 2026 free?

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

### Is Sterile Processing free?

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

### Do CSIS Exam Prep 2026 or Sterile Processing have ads?

Neither CSIS Exam Prep 2026 nor Sterile Processing shows ads.

### Which is updated more often, CSIS Exam Prep 2026 or Sterile Processing?

CSIS Exam Prep 2026 ships an update every 12 months, and Sterile Processing every 4 months. Most recently, CSIS Exam Prep 2026 was updated on November 9, 2026 and Sterile Processing on November 9, 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.*