# SecurAcath vs CVR Calc

The clearest difference is rating: SecurAcath at 5.0 against CVR Calc's 3.3. SecurAcath also leads on iOS requirement (13.0 vs 18.5). CVR Calc's advantage is ratings volume (26 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SecurAcath holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: CVR Calc has 26 ratings behind it against 3, so its average is the more settled of the two.

SecurAcath ships an update every 9 months, CVR Calc every 8 months. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SecurAcath | CVR Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/securacath/id906734775/reviews)** | [3.3 (26 ratings)](https://appshunter.io/ios/app/cvr-calc/id1423744026/reviews) |
| Number of ratings | 3 | **26** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 213 MB | 4 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Infuse Media Group, LLC](https://appshunter.io/developer/372069206) | [Global Vascular Access, LLC](https://appshunter.io/developer/1423744025) |

## What reviewers say

### SecurAcath

[App page](https://appshunter.io/ios/app/securacath/id906734775)

Access essential instructions for the SecurAcath subcutaneous catheter securement device. This app offers a streamlined guide for proper usage, ensuring quick reference for healthcare professionals and patients.

**Highlights:** Abbreviated instructions for use, SecurAcath device guide, Subcutaneous catheter securement, Quick reference tool, Medical device instructions

**Features:** macOS Compatibility

**In-app purchases:** none


### CVR Calc

[App page](https://appshunter.io/ios/app/cvr-calc/id1423744026)

This medical tool assists healthcare professionals in vascular access and infusion therapy by calculating catheter to vessel ratios. It helps clinicians quickly assess the area consumed within the intravascular space by catheters, supporting both venous and arterial devices.

**Highlights:** Catheter to vessel ratio calculation, Supports venous and arterial devices, Peripheral and central venous access device calculations, Area-based calculations for patient assessment, Uses ultrasound measurements for vessel size, Based on academic research and awards

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SecurAcath free?

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

### Is CVR Calc free?

CVR Calc is free to download, with no in-app purchases.

### Which has better reviews, SecurAcath or CVR Calc?

SecurAcath is rated higher. SecurAcath averages 5.0 out of 5 from 3 ratings, while CVR Calc averages 3.3 from 26 ratings.

### Do SecurAcath or CVR Calc have ads?

Neither SecurAcath nor CVR Calc shows ads.

### Which is updated more often, SecurAcath or CVR Calc?

SecurAcath ships an update every 9 months, and CVR Calc every 8 months. Most recently, SecurAcath was updated on June 1, 2026 and CVR Calc on September 13, 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.*