# CVR Calc vs My Vascular Access

The clearest difference is rating: My Vascular Access at 5.0 against CVR Calc's 3.3. My Vascular Access also leads on update cadence (every 4 days vs every 8 months) and iOS requirement (10.0 vs 18.5). CVR Calc's advantage is ratings volume (27 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

My Vascular Access holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: CVR Calc has 27 ratings behind it against 1, so its average is the more settled of the two.

CVR Calc ships an update every 8 months, My Vascular Access every 4 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CVR Calc | My Vascular Access |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (27 ratings)](https://appshunter.io/ios/app/cvr-calc/id1423744026/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/my-vascular-access/id1571764113/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 4 MB | 32 MB |
| Requires iOS | 18.5 | **10.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Global Vascular Access, LLC](https://appshunter.io/developer/1423744025) | [Kopis, LLC](https://appshunter.io/developer/1381227226) |

## What reviewers say

### 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


### My Vascular Access

[App page](https://appshunter.io/ios/app/my-vascular-access/id1571764113)

This medical app analyzes patient-specific factors to recommend the most appropriate vascular access treatment. It leverages scientific evidence and expert knowledge to guide clinical decision-making for vascular access procedures.

**Highlights:** Patient-specific factor analysis, Vascular access treatment recommendations, Clinical situation algorithms, Selection assistant tool, Save and download results, Access to KDOQI guidelines

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CVR Calc free?

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

### Is My Vascular Access free?

My Vascular Access is free to download, with no in-app purchases.

### Which has better reviews, CVR Calc or My Vascular Access?

My Vascular Access is rated higher. CVR Calc averages 3.3 out of 5 from 27 ratings, while My Vascular Access averages 5.0 from 1 ratings.

### Do CVR Calc or My Vascular Access have ads?

Neither CVR Calc nor My Vascular Access shows ads.

### Which is updated more often, CVR Calc or My Vascular Access?

CVR Calc ships an update every 8 months, and My Vascular Access every 4 days. Most recently, CVR Calc was updated on November 2, 2026 and My Vascular Access on November 3, 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.*