# Ilma — Nearby RuuviTag readings

> iPhone app for nearby RuuviTag sensor readings and widgets. (iPhone/iPad app by Yoji Hirabayashi.)

- Source: https://appshunter.io/ios/app/ilma/id6805546485 (this page in markdown: same URL + `.md`)
- Developer: [Yoji Hirabayashi](https://appshunter.io/developer/1875364025)
- Category: Utilities, Weather
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 26.0 · 5 MB
- Languages: American English, Finnish, French (France), German (Germany), Japanese, Korean, Polish, Swedish, Thai
- Released: 2026-09-02
- Data updated: 2026-09-22
- Monetization: free

## What is Ilma?

Ilma needs a RuuviTag nearby. Without one, there is nothing to claim or read.

Ilma is a small iPhone app for RuuviTag sensors. Claim a tag nearby, and see a calm native reading.

It is built on restraint. Temperature is the hero. You also get the name you chose, humidity, dew point, pressure, and battery. Ilma shows what most people want to see when checking a room or a space. Ruuvi's official app and docs cover the rest for power users.

Live values need the tag nearby. When it is not, Ilma keeps the last reading it heard. Home Screen, Lock Screen, and StandBy widgets show that last-heard temperature and when it was recorded. Each widget shows one named tag you choose.

Reorder claimed sensors on iPhone. Watch and widgets follow your order. With more than one tag claimed, the Watch app pages between them when you are nearby.

A small Apple Watch companion shows the same claimed sensors when you are nearby. The list comes from iPhone and syncs automatically. Ilma does not read tags in the background. It is not a remote dashboard.

Names and last readings can stay in your iCloud so they survive a reinstall and show up on your other iPhones. That data is yours, in your Apple account. We do not collect it, and we cannot see it.

Ilma is free. Every feature is included from the first launch. This is not freemium. Nothing is locked behind a tip or a subscription. The optional Tip Jar in About is only if you want to buy me a coffee. It never unlocks anything, and the app never nags.

No account. No tracking. No third-party code. Ilma is built for most people to use without restrictions, with privacy by default and system accessibility on iPhone, including Larger Text, Reduced Motion, and VoiceOver.

Features 

• Claim nearby RuuviTag sensors. Home shows only the ones you named
• Drag to reorder claimed sensors. Watch and widgets follow
• Temperature as the hero (°C / °F from your iPhone language)
• Humidity, dew point, pressure (hPa), and battery on the detail screen
• Last-heard reading when a tag is out of range
• Home Screen, Lock Screen, and StandBy widgets. Pick one named tag per widget
• Light and Dark Mode. Home Screen icon in Default, Dark, Clear, and Tinted
• Apple Watch companion for claimed sensors when nearby. Swipe between multiple tags
• Personal iCloud for names and last snapshot (reinstall and your other devices)
• Free with every feature included. Optional Tip Jar never required
• On-device Bluetooth. Larger Text, Reduced Motion, and VoiceOver on iPhone

## Key features

- Claim nearby RuuviTag sensors
- Temperature, humidity, dew point, pressure readings
- Home, Lock Screen, and StandBy widgets
- Last-heard reading when tag is out of range
- Apple Watch companion app
- iCloud sync for names and last readings
- On-device Bluetooth connectivity

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Espresso | $1.99 | one-time |
| Iced Pumpkin Spice Mocha | $8.99 | one-time |
| Flat White | $3.99 | one-time |


## Is Ilma safe?

Not enough ratings yet to assess Ilma.

## Is Ilma legit?

Ilma has limited verification signals. The AppsHunter Legitimacy Score for Ilma is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Ilma

### 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.

## Version history (last 3 releases)

### 1.1 — 2026-09-10

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.

### 1.0.1 — 2026-09-03

Correct humidity from a real reading. Enter the value you measured. Ilma stores a small offset and uses it on the detail screen, dew point, and Apple Watch.

Claiming a nearby tag stays responsive while you name it.

A lot of under-the-hood work so lists and Bluetooth stay out of your way.

### 1.0 — 2026-09-03

No release notes.

## More apps by Yoji Hirabayashi

- [Sōon](https://appshunter.io/ios/app/soon/id6758863805)
- [HELBoard](https://appshunter.io/ios/app/helboard/id6810588815)

All apps by Yoji Hirabayashi: https://appshunter.io/developer/1875364025

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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 2026-09-22.*
