> For the complete documentation index, see [llms.txt](https://help.aranet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.aranet.com/aranet4/aranet4-home/aranet-home-app/aranet-home-app-overview.md).

# Aranet Home App Overview

The Aranet Home app is the companion mobile app for Aranet’s indoor-environment sensors (like Aranet4, Aranet2, Aranet Rn+, Aranet Radon One and Aranet Radiation sensor devices).

Compatible with both iOS (iPhone / iPad) and Android.

Using the app, you get a convenient hub for monitoring, configuring, and analysing data from your sensors. Key features:

* **Real-time readings** — view current measurements (CO₂, temperature, humidity, atmospheric pressure, and more, depending on the device). 
* **Measurement history & data storage** — you can store past measurements (history) and review data over time. The app supports up to **90 days** of history (depending on the device and its settings). 
* **Customizable measurement intervals** — you can set how often the sensor measures and sends data: 1, 2, 5, or 10 minutes. 
* **Charts & data visualisation** — the app turns raw sensor data into easy-to-read charts and colour-coded visuals, so you can spot trends (like CO₂ spikes, humidity swings, etc.) over time. 
* **Export data** — you can export stored data (e.g. CSV or XLSX), which is useful if you want to analyze data elsewhere or keep long-term logs. 
* **Device configuration & management** — you can pair/unpair devices, update firmware, adjust sensor settings (e.g. measurement frequency, CO₂ threshold levels, buzzer/alert settings), rename devices, etc.
* **Widgets** — on supported mobile devices you can add app widgets for quick-glance values without opening the full app. 
* **Smart alerts / Notifications** — the app can notify you when certain thresholds are exceeded (e.g. CO₂ levels go into “unhealthy” range) or if the battery is low (for battery-powered devices). 

Also, the app supports multiple languages (English, German, French, Latvian, and more).


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