# dBStation vs UMPI

The clearest difference is iOS requirement: dBStation at 9.3 against UMPI's 16.4. 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.

dBStation ships an update every 6 months, UMPI every 3 months. The most recent releases landed on September 22, 2026 and August 8, 2026 respectively.

## The numbers

| Metric | dBStation | UMPI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 469 MB | 44 MB |
| Requires iOS | **9.3** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Saint-Gobain](https://appshunter.io/developer/543924473) | [UNION METIERS PLATRE ET DE L ISOLATION](https://appshunter.io/developer/1484478358) |

## What reviewers say

### dBStation

[App page](https://appshunter.io/ios/app/dbstation/id1066853740)

Explore the acoustic insulation performance of various building materials. Learn about building acoustics and how noise impacts daily life, with options to improve new or renovated spaces.

**Highlights:** Demonstrates acoustic insulation performance, Highlights plasterboard and masonry systems, Educates on building acoustics, Explores noise impact on life, Presents Saint-Gobain solutions

**Features:** macOS Compatibility

**In-app purchases:** none


### UMPI

[App page](https://appshunter.io/ios/app/umpi-ffb/id1484478359)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dBStation free?

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

### Is UMPI free?

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

### Do dBStation or UMPI have ads?

Neither dBStation nor UMPI shows ads.

### Which is updated more often, dBStation or UMPI?

dBStation ships an update every 6 months, and UMPI every 3 months. Most recently, dBStation was updated on September 22, 2026 and UMPI on August 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.*