# dBActive for the Optimus+

> dBActive for the Optimus+ (iPhone/iPad app by Cirrus Research.)

- Source: https://appshunter.io/ios/app/dbactive-for-the-optimus-plus/id1437280865 (this page in markdown: same URL + `.md`)
- Developer: [Cirrus Research](https://appshunter.io/developer/1145765467)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 27 MB
- Languages: American English
- Released: 2018-11-30
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/dbactive-for-the-optimus-plus/id1437280865/reviews.md

## What is dBActive for the Optimus+?

The Cirrus dBActive app supports all Optimus+ sound level meters and connects to the instrument via Bluetooth. The application allows for live data to be viewed, meaning you can leave the instrument in potentially dangerous environments without putting yourself at risk. It also allows for previous measurement data to be viewed, as well as the ability to stop and start measurements from a remote location.

The Optimus+ instruments measure all noise parameters simultaneously, including average sound level, maximum sound level, and octave band filters.

Features include:
-	View live measurement data from the instrument
-	Start and stop measurements
-	View previous measurement data
-	Change instrument settings and measurement parameters
 
dBActive is compatible with all Optimus+ variants.

Find more information about the Optimus+ at https://cirrusresearch.com/products/sound-level-meters/


## Version history (last 4 releases)

### 2.0.1 — 2025-06-04

Improved compatibility with the latest versions of iOS for a smoother and more reliable experience.

### 2.0.0 — 2025-06-03

Improved compatibility with the latest versions of iOS for a smoother and more reliable experience.

### 1.0.16 — 2019-02-15

Improved language support
User interface improvements

### 1.0.15 — 2018-11-29

No release notes.

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## More apps by Cirrus Research

- [dBLink for the doseBadge⁵](https://appshunter.io/ios/app/dblink-for-the-dosebadge/id1145765468)
- [MyCirrus Mobile](https://appshunter.io/ios/app/mycirrus-mobile/id1334658358)

All apps by Cirrus Research: https://appshunter.io/developer/1145765467

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-18.*