# ISRMWR vs Valve PPM

The clearest difference is update cadence: Valve PPM at every 2 months against ISRMWR's every 10 months. ISRMWR's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

ISRMWR ships an update every 10 months, Valve PPM every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | ISRMWR | Valve PPM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/valve-ppm/id1604258260/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 33 MB | 37 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Shenzhen Prime Healthcare Life Science Co., Ltd.](https://appshunter.io/developer/1322195851) | [KRUTSCH](https://appshunter.io/developer/1454678018) |

## What reviewers say

### ISRMWR

[App page](https://appshunter.io/ios/app/isrmwr/id1559861467)

**Features:** macOS Compatibility

**In-app purchases:** none


### Valve PPM

[App page](https://appshunter.io/ios/app/valve-ppm/id1604258260)

This tool assists medical professionals in assessing implanted prosthetic cardiac valves. It offers guidance for checking existing valve function and selecting the optimal valve before implantation based on patient and prosthesis parameters.

**Highlights:** Assess implanted valve function, Select optimal valve before implantation, Analyze patient and prosthesis parameters, Identify potential patient-prosthesis mismatch, Determine intrinsic prosthesis dysfunction

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

**In-app purchases:** none


## Frequently asked questions

### Is ISRMWR free?

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

### Is Valve PPM free?

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

### Do ISRMWR or Valve PPM have ads?

Neither ISRMWR nor Valve PPM shows ads.

### Which is updated more often, ISRMWR or Valve PPM?

ISRMWR ships an update every 10 months, and Valve PPM every 2 months. Most recently, ISRMWR was updated on November 3, 2026 and Valve PPM 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.*