# DENSE Trial vs Valve PPM

The clearest difference is update cadence: Valve PPM at every 2 months against DENSE Trial's every 5 months. DENSE Trial's advantage is iOS requirement (12.0 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.

DENSE Trial ships an update every 5 months, Valve PPM every 2 months. The most recent releases landed on August 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DENSE Trial | 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 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 184 MB | 37 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [BestApps BV](https://appshunter.io/developer/329677410) | [KRUTSCH](https://appshunter.io/developer/1454678018) |

## What reviewers say

### DENSE Trial

[App page](https://appshunter.io/ios/app/dense-trial/id1452898975)

**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 DENSE Trial free?

DENSE Trial 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 DENSE Trial or Valve PPM have ads?

Neither DENSE Trial nor Valve PPM shows ads.

### Which is updated more often, DENSE Trial or Valve PPM?

DENSE Trial ships an update every 5 months, and Valve PPM every 2 months. Most recently, DENSE Trial was updated on August 26, 2026 and Valve PPM on October 8, 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.*