Ilma
Nearby RuuviTag readings
About
This app displays real-time data from RuuviTag sensors when they are nearby. It prioritizes temperature readings and offers essential environmental metrics like humidity and pressure. Widgets are available for home, lock, and standby screens, showing the last recorded data when the tag is out of range.
What's New in Ilma
1.1
September 10, 2026
Ilma matches your iPhone language automatically. Change it in the Settings app. Available in English, Finnish (suomi), Swedish (svenska), French (Français), German (Deutsch), Polish (Polski), Thai (ภาษาไทย), Japanese (日本語), and Korean (한국어). Nearby unclaimed Ruuvi sensors now show four unique characters so they are easier to tell apart. Pressure follows your iPhone region, like temperature (°C/°F), so you see inHg or hPa. Also, minor UI and bug fixes throughout the app to make the experience even smoother.
MoreSubscriptions & In-App Purchases
$1.99
Espresso
Optional tip for Ilma. Buy me a coffee. Never required.
Developer apps
FAQ
What is Ilma?
Ilma is a free iPhone app designed to read data from RuuviTag sensors when they are nearby. It focuses on providing key environmental metrics like temperature, humidity, and pressure in a user-friendly interface.
Does Ilma require a RuuviTag?
Yes, Ilma requires a RuuviTag sensor to be nearby to claim and read data. Without a RuuviTag, the app has no data to display.
What data does Ilma show from a RuuviTag?
Ilma primarily displays temperature, but also shows humidity, dew point, pressure, and battery level. It prioritizes temperature as the main reading.
Can I see data when my RuuviTag is not nearby?
Yes, when a RuuviTag is out of range, Ilma displays the last recorded reading and the time it was recorded. This information is also available on its widgets.
Does Ilma have ads?
No, Ilma is completely free and does not contain advertisements. It offers all features from the start without any locked content.
Is Ilma available on other devices besides iPhone?
Ilma is available on iPhone and also has a companion app for Apple Watch. Widgets are also supported for Home Screen, Lock Screen, and StandBy.
How does Ilma handle user privacy?
Ilma is built with privacy by default, featuring no account requirements, no tracking, and no third-party code. Data like names and last readings are stored in your personal iCloud.
How often is Ilma updated?
The latest version of Ilma is 1.1, which was last updated on 2026-09-10. Updates typically bring improvements and new features based on user feedback and platform advancements.