# AcousticApp vs eVARMO

The clearest difference is in-app purchases: eVARMO at none against AcousticApp's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. AcousticApp sells 1 in-app purchase, starting at $0.99 per month. eVARMO asks for nothing beyond the download.

AcousticApp ships an update every 4 months, eVARMO every 7 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | AcousticApp | eVARMO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 40 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [objectiv GmbH & Co. KG](https://appshunter.io/developer/1121646876) | [Lucht LHZ Elektroheizung GmbH & Co. KG](https://appshunter.io/developer/1194100934) |

## What reviewers say

### AcousticApp

[App page](https://appshunter.io/ios/app/acousticapp/id1121646877)

Measure and analyze sound and room acoustics with professional tools. Calculate reverberation time, simulate acoustic changes, and test your hearing. Optimize spaces with advanced features and personalized reports.

**Highlights:** Professional sound and noise measurement (RTA), Reverberation time calculation and evaluation, Acoustic simulation before/after optimization, Hearing ability test across frequency ranges, Room acoustics calculation with user-defined absorbers, Personalized report generation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Acoustic App Pro Version | $0.99 | per month |


### eVARMO

[App page](https://appshunter.io/ios/app/evarmo/id6446863717)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AcousticApp free?

AcousticApp is free to download, with in-app purchases available.

### Is eVARMO free?

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

### Do AcousticApp or eVARMO have ads?

Neither AcousticApp nor eVARMO shows ads.

### Which is updated more often, AcousticApp or eVARMO?

AcousticApp ships an update every 4 months, and eVARMO every 7 months. Most recently, AcousticApp was updated on September 10, 2026 and eVARMO on September 9, 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.*