# ABG Expert vs CCRN Practice Test 2026

The clearest difference is review sentiment: ABG Expert at 100% against CCRN Practice Test 2026's 0%. ABG Expert also leads on in-app purchases (none vs 7) and update cadence (every 5 months vs every 12 months). CCRN Practice Test 2026's advantage is rating (5.0 vs 4.8). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CCRN Practice Test 2026 sells 7 in-app purchases, starting at $8.49 per 3 months. ABG Expert asks for nothing beyond the download.

CCRN Practice Test 2026 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ABG Expert has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of ABG Expert's written reviews are positive against 0% of CCRN Practice Test 2026's, so the app with the better star average is not the one people write more warmly about.

ABG Expert ships an update every 5 months, CCRN Practice Test 2026 every 12 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ABG Expert | CCRN Practice Test 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9 ratings)](https://appshunter.io/ios/app/abg-expert/id885575488/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ccrn-practice-test-2026/id1577772270/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 12 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 34 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Brian Dale Vander Werf MD Inc](https://appshunter.io/developer/1521935908) | [Get Exam](https://appshunter.io/developer/1529117519) |

## What reviewers say

### ABG Expert

[App page](https://appshunter.io/ios/app/abg-expert/id885575488)

This medical tool provides accurate and flexible acid-base analysis for healthcare professionals. It offers detailed explanations, customizable ranges, and advanced features like anion gap correction and A-a gradient adjustments for various patient conditions and locations.

**Highlights:** Validated accuracy with real-world testing, Plausibility checks for physiologically impossible data, Automatic anion gap correction with albumin, Detailed explanations with equations, Separate or combined analysis of ABG, anion gap, A-a gradient, Customizable normal ranges for anion gap and delta gap, Age and barometric pressure adjustments for A-a gradient, Support for SI and non-SI units, Color-coded results and differential diagnoses, Adjustments for chronic respiratory conditions

**Features:** macOS Compatibility

**In-app purchases:** none


### CCRN Practice Test 2026

[App page](https://appshunter.io/ios/app/ccrn-practice-test-2026/id1577772270)

Prepare for your CCRN certification exam with over 750 practice questions and 370 flashcards. Master all exam areas with realistic simulations and detailed rationales. Study offline anytime, anywhere, and benefit from free updates for the latest guidelines.

**Highlights:** 750+ exam-like questions, 370+ flashcards, Over a dozen practice exams, Covers all major exam areas, Offline study capability, Free updates for 2026 guidelines, Detailed rationales

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 - Months Premium | $8.49 | per 3 months |
| 1 - Month Premium | $8.99 | per month |
| 1 - Week Premium | $9.99 | per 7 days |
| 1 - Month Premium | $15.99 | per month |
| 3 - Months Premium | $16.99 | per 3 months |
| 3 - Months Premium | $35.99 | per 3 months |
| 12 - Months Premium | $39.99 | per year |


## Frequently asked questions

### Is ABG Expert free?

ABG Expert is free to download, with no in-app purchases.

### Is CCRN Practice Test 2026 free?

CCRN Practice Test 2026 is free to download, with in-app purchases available.

### Which has better reviews, ABG Expert or CCRN Practice Test 2026?

CCRN Practice Test 2026 is rated higher. ABG Expert averages 4.8 out of 5 from 9 ratings, while CCRN Practice Test 2026 averages 5.0 from 1 ratings.

### Do ABG Expert or CCRN Practice Test 2026 have ads?

Neither ABG Expert nor CCRN Practice Test 2026 shows ads.

### Which is updated more often, ABG Expert or CCRN Practice Test 2026?

ABG Expert ships an update every 5 months, and CCRN Practice Test 2026 every 12 months. Most recently, ABG Expert was updated on October 20, 2026 and CCRN Practice Test 2026 on October 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.*