# CardioTrials vs Code Blue CPR

The clearest difference is price: CardioTrials at Free against Code Blue CPR's $7.99. CardioTrials also leads on rating (5.0 vs 4.5) and iOS requirement (13.0 vs 16). Code Blue CPR's advantage is in-app purchases (none vs 7) and review sentiment (80% vs 63%). On update cadence, ads and device support there is nothing between them.

CardioTrials is free to download; Code Blue CPR costs $7.99 up front. CardioTrials sells 7 in-app purchases, starting at $4.00 per month. Code Blue CPR asks for nothing beyond the download.

CardioTrials holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Code Blue CPR has 37 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 63% of CardioTrials's written reviews are positive against 80% of Code Blue CPR's, so the app with the better star average is not the one people write more warmly about.

CardioTrials ships an update monthly, Code Blue CPR every 3 weeks. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | CardioTrials | Code Blue CPR |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cardiotrials-cardiology/id1238785254/reviews)** | [4.5 (37 ratings)](https://appshunter.io/ios/app/code-blue-cpr-acls-timer/id1640636826/reviews) |
| Number of ratings | 2 | **37** |
| Positive reviews | 62.5% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#69** |
| Size | 77 MB | 107 MB |
| Requires iOS | **13.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Theo Correa](https://appshunter.io/developer/1120355545) | [Michael Mattesco Horta](https://appshunter.io/developer/1640636828) |

## What reviewers say

### CardioTrials

[App page](https://appshunter.io/ios/app/cardiotrials-cardiology/id1238785254)

Access a curated library of essential cardiology research, including landmark historical studies and the latest scientific articles. Synthesized analyses save time for busy medical professionals, ensuring they stay informed with evidence-based practice.

**Highlights:** Synthesized scientific articles, Key and iconic cardiology studies, Latest research updates, Evidence-based practice resources, Community of 10,000+ doctors

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mensal | $4.00 | per month |
| CT Pro Monthly Plan | $4.00 | per month |
| CardioTrials Monthly Plan | $4.00 | per month |
| Semestral | $20.49 | per 6 months |
| Anual | $41.00 | per year |
| CT Pro Annual Plan | $41.00 | per year |
| CardioTrials Annual Plan | $41.00 | per year |


### Code Blue CPR

[App page](https://appshunter.io/ios/app/code-blue-cpr-acls-timer/id1640636826)

**Currently charting:** #69 Top Paid · Medical (US App Store)

This professional medical app assists healthcare providers during cardiac arrest and resuscitation events by precisely tracking CPR cycles, medication timing, rhythms, and procedures. It offers customizable workflows, real-time event logging, and post-code reporting tools, all based on current resuscitation guidelines.

**Highlights:** Dual CPR & Epinephrine Timers, Real-time Event Logging, Compression Fraction Tracking, Customizable Medications & Procedures, First Responder Mode, Code History & PDF Export, Integrated ACLS & Resuscitation Flowcharts

**In-app purchases:** none


## Frequently asked questions

### Is CardioTrials free?

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

### Is Code Blue CPR free?

Code Blue CPR costs $7.99, with no in-app purchases.

### Which has better reviews, CardioTrials or Code Blue CPR?

CardioTrials is rated higher. CardioTrials averages 5.0 out of 5 from 2 ratings, while Code Blue CPR averages 4.5 from 37 ratings.

### Do CardioTrials or Code Blue CPR have ads?

Neither CardioTrials nor Code Blue CPR shows ads.

### Which is updated more often, CardioTrials or Code Blue CPR?

CardioTrials ships an update monthly, and Code Blue CPR every 3 weeks. Most recently, CardioTrials was updated on September 18, 2026 and Code Blue CPR on September 19, 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.*