# Revontulet - Aurora Finland

> Revontulet - Aurora Finland (iPhone/iPad app by JOUNI MARKUS UUSIMAA.)

- Source: https://appshunter.io/ios/app/revontulet-aurora-finland/id6826496434 (this page in markdown: same URL + `.md`)
- Developer: [JOUNI MARKUS UUSIMAA](https://appshunter.io/developer/6826496437)
- Category: Weather
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 11 MB
- Languages: American English, Finnish, Swedish
- Released: 2026-10-26
- Data updated: 2026-11-10

## What is Revontulet?

Revontulet shows your chance of seeing the northern lights right now where you are in Finland, and how the next two nights look.

THE CHANCE TO SEE, NOW
The app calculates the same activity value (R) that the Finnish Meteorological Institute (FMI) uses, from magnetometer measurements at the station nearest you. It combines it with darkness, the moon and cloud cover, and gives one clear answer: None, Low, Moderate or High, with a short reason such as "Overcast" or "Bright moon".

AURORA MAP
Swipe left to see every FMI magnetometer station on a map of Finland. The map shows where auroras are probable, possible or unlikely right now, against each station's own thresholds. Tap a station to see its activity value.

EARLY WARNING
Solar wind measured between the Sun and Earth shows about 30–60 minutes in advance whether aurora activity is about to rise.

FORECAST FOR TONIGHT AND TOMORROW NIGHT
A two-night forecast from NOAA's Kp forecast and geomagnetic storm watches, combined with darkness, the moon and FMI's cloud forecast. Tap it to see what helps and what limits each night.

AURORA ALERTS
Turn on alerts to get a notification when the chance in your area reaches Moderate or High, even when the app is closed. At most three alerts a night.

DETAILS WHEN YOU WANT THEM
Open Details to see the activity at the nearest station, darkness, the moon's phase, cloud cover and the latest solar wind.

PRIVATE BY DESIGN
• Your location stays on your iPhone. Requests for measurement data cover all of Finland and contain nothing about you.
• No accounts, no ads, no analytics, no tracking.
• Alerts are optional and use only a coarse area of Finland, never your position.
• Don't want to share your location? Choose your municipality by hand.

OPEN DATA
Measurements and cloud data: Finnish Meteorological Institute (FMI), CC BY 4.0
Space weather: NOAA Space Weather Prediction Center
Municipality boundaries: Statistics Finland, CC BY 4.0

Revontulet covers Finland and is available in Finnish, Swedish and English.

## Is Revontulet safe?

Not enough ratings yet to assess Revontulet.

## Is Revontulet legit?

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


## Version history (last 5 releases)

### 4.1 — 2026-11-09

New launch screen.

### 4.0 — 2026-11-08

Uusi karttasivu: pyyhkäise päänäkymästä vasemmalle ja näet, missä päin Suomea revontulet ovat mahdollisia juuri nyt. Kartalla ovat kaikki Ilmatieteen laitoksen magnetometriasemat, ja asemaa napauttamalla näet sen mittauksen tarkemmin. Kartta kertoo vain geomagneettisesta aktiivisuudesta: pilvet, pimeys ja kuu ovat mukana päänäkymässä.

Hälytykset toimivat luotettavammin. Hälytysten poistaminen käytöstä ei enää voi kumoutua, jos jokin asetus tallentuu samalla hetkellä, ja virheet näkyvät nyt hälytysasetuksissa.

Lisäksi pienempiä korjauksia ulkoasuun ja saavutettavuuteen.

### 3.0.2 — 2026-11-06

Hälytyksen avaaminen näyttää nyt heti uusimmat tiedot. Aiemmin sovellus saattoi näyttää pienemmän mahdollisuuden kuin hälytys, kunnes näkymän päivitti vetämällä alas.

Yläreunan painikkeet leijuvat nyt taivaan päällä. Vierittäessä yläreunaan ei enää ilmesty peittävää palkkia, ja paikan nimelle on enemmän tilaa.

### 3.0.1 — 2026-11-05

Tapping an aurora alert now opens the app. Before, the app closed right after opening from an alert.

### 3.0 — 2026-11-02

Revontulet 3.0 now looks ahead.

• Forecast: see the chance to see the aurora for the rest of tonight and tomorrow night. It is based on NOAA's Kp forecast, geomagnetic storm watches and the cloud forecast. Tap it to see what helps and what limits.
• Early warning: solar wind measurements show about 30–60 minutes in advance whether aurora activity is about to rise.
• Moon: a bright moon washes out faint aurora, so it now counts in the chance to see and in alerts. Details show the moon's phase and whether it is up.

## Apps similar to Revontulet

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Revona: Aurora Tonight?](https://appshunter.io/ios/app/revona-aurora-tonight/id6810764217) | — | Free | Weather |
| [Solwind: Aurora Forecast](https://appshunter.io/ios/app/solwind-aurora-forecast/id6820524449) | — | Free | Weather |
| [Aurora Forecast Alerts - Blika](https://appshunter.io/ios/app/aurora-forecast-alerts-blika/id6809522446) | — | Free | Weather |
| [Nordlys – Aurora Forecast](https://appshunter.io/ios/app/nordlys-aurora-forecast/id6790763411) | — | Free | Weather |
| [Aurora Forecast: Night Sky](https://appshunter.io/ios/app/aurora-forecast-night-sky/id6810899288) | — | Free | Weather |
| [AuroraCue: Aurora Forecast](https://appshunter.io/ios/app/auroracue-aurora-forecast/id6815081872) | — | Free | Weather |

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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 2026-11-10.*