Revona: Aurora Tonight?
Northern lights forecast & Kp
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Not a dashboard. One word — GO, SOON or NOT TONIGHT — worked out for the place you are standing in.
Most aurora apps hand you a dashboard of numbers and leave you to work it out. Revona answers the question you actually have: is tonight worth going outside for?
ONE ANSWER, WITH A REASON
A single verdict — GO, SOON, or NOT TONIGHT — big enough to read at arm's length in the dark, with a plain sentence saying why. "Kp 6, clear sky. Get dressed." Or "Kp 6 is strong, but 80% cloud is in the way."
WORKED OUT FOR YOUR PLACE
A Kp number on its own means nothing without knowing where you are standing. Revona computes your geomagnetic latitude, whether the aurora oval can reach overhead tonight, how dark the sky will actually get, and how much the moon will wash it out.
REAL DATA, NOT GUESSES
• 3-day Kp forecast from NOAA's Space Weather Prediction Center
• Hourly cloud cover from Open-Meteo
• Moon phase, moonrise and moonset
• Tonight's dark window, and the clearest hour inside it
An hour with no cloud reading is shown as unknown, never as clear. That difference matters when you are deciding whether to drive an hour into the cold.
WORKS WHERE YOU ACTUALLY STAND
Aurora hunting happens in remote places with poor signal. Revona keeps the last forecast on your phone and shows it labelled with the time it was fetched — so opening the app with no bars gives you something honest instead of an error.
YOUR HUNTING LOG
Record what you saw, with a note and a photo. It stays on your phone; nothing is uploaded anywhere.
CAMERA SETTINGS
Suggested ISO, aperture and shutter for the intensity right now, for a phone or a proper camera. A bright aurora moves fast, so it needs a SHORTER exposure — the opposite of what most people try first.
NINE LANGUAGES
English, Deutsch, Español, Français, 日本語, 한국어, Português, Tiếng Việt, 中文.
FREE AND PRO
Free: one place, the full verdict and reason, the 3-day Kp chart, hourly cloud, moon and dark window, the sighting log and the camera settings.
Revona Pro: watch several places at once, and see NOAA's 27-day outlook — a rough guide to when the Sun's active regions come back round, for planning a trip rather than tonight.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://legal.lookbookai.app/revona/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Nothing changes in the app this time: the App Store page has new headlines, so it is clearer what Revona does before you download it.
The developer, le duc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- le duc
- Size
- 27.3 MB
- Category
- Weather
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Revona Pro $4.99
- Copyright
- © 2026 Brother AI Company