# Reaumur — Temperature Controller

> Open source temperature logger and controller for Particle devices. (iPhone/iPad app by BluDesign, LLC.)

- Source: https://appshunter.io/ios/app/reaumur/id1077355402 (this page in markdown: same URL + `.md`)
- Developer: [BluDesign, LLC](https://appshunter.io/developer/428800336)
- Category: Utilities, Productivity
- Price: Free
- Rating: 3.50/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 17+
- Requires: iOS 11.0 · 51 MB
- Languages: English
- Released: 2016-04-27
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/reaumur/id1077355402/reviews.md

## What is Reaumur?

Reaumur is a open source temperature logger/controller that runs on Particle devices

• Log and monitor the temperature and humidity levels of multiple rooms/containers
• Control temperatures using relay switches with detailed temperature range settings
• Heating and cooling cycles are logged for a detailed history of use
• View charts of temperature and humidity levels in the app
• All data is logged to InfluxDB for charting in Grafana and other platforms
• Connect to Slack for notifications of devices going offline and temperatures going out of range
• Connect multiple Particle.io devices to manage temperatures over multiple rooms, buildings, and locations
• Free and open source server with web interface for managing temperatures on your desktop

The free and open source Reaumur Server must be installed and setup before using this app. A Particle.io device and account is required to be setup for collecting and controlling temperatures.

For directions on setting up your Reaumur Server visit: https://github.com/reaumur/ReaumurServer or https://reaumur.bludesign.biz

## Key features

- Log and monitor temperature/humidity
- Control temperatures with relay switches
- View temperature and humidity charts
- Log heating and cooling cycles
- Connect multiple Particle.io devices
- Slack notifications for alerts

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/reaumur/id1077355402/reviews.md

### 2/5 — ReaumurServer

*2019-04-18, version 2.2.0*

Unresponsive Support. Tried by Website, Email, and phone. Certainly no luck if you wanted a custom version.

## Frequently asked questions about Reaumur

### What is Reaumur?

Reaumur is an open-source temperature logger and controller that runs on Particle devices. It allows you to monitor and control temperature and humidity levels across multiple locations.

### Does Reaumur have ads?

The provided data does not indicate whether Reaumur contains advertisements. As it is free and open source, it may not include ads.

### What devices does Reaumur support?

Reaumur is available for iPhone, iPad, and iPod. It also has support for Apple Watch.

### How often is Reaumur updated?

The latest version of Reaumur was released on July 5, 2020. The app was first released on April 27, 2016.

### What is the age rating for Reaumur?

Reaumur has an age rating of 17+, which is typically due to the complexity of its setup and potential use cases.

### What are the setup requirements for Reaumur?

To use Reaumur, you must install and set up the free and open-source Reaumur Server. A Particle.io device and account are also required for data collection and control.

### Where can I find setup instructions for Reaumur Server?

Setup instructions for the Reaumur Server can be found on GitHub at https://github.com/reaumur/ReaumurServer or on their website at https://reaumur.bludesign.biz.

### What is the user rating for Reaumur?

Reaumur has a rating of 3.5 stars based on 2 user ratings.

## Version history (last 1 release)

### 2.3.0 — 2020-07-05

• Bug fixes

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## More apps by BluDesign, LLC

- [Sales Pro - Square POS Reports](https://appshunter.io/ios/app/sales-pro-square-pos-reports/id1079542815)
- [Fax Server](https://appshunter.io/ios/app/fax-server/id1331048085)
- [Stock Market Board](https://appshunter.io/ios/app/stock-market-board/id1363194681)
- [Paperlog](https://appshunter.io/ios/app/paperlog/id1447878753)

All apps by BluDesign, LLC: https://appshunter.io/developer/428800336

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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 2026-06-10.*