App Store
Version 4.0 · 2026-10-26
added a scientific forecast for solar storms. so users can plan as good as possible what night to go out.
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 4.0, updated 2026-10-26.








Store screenshots supplied by the developer.
Aurora and Nordlys forecasting made simple
Know when it’s worth stepping outside with a clear Aurora Visibility score that combines key factors like KP index and cloud cover. Check the hourly aurora activity forecast, view 5-day trends, and use the cloud coverage view to spot the clearest skies nearby.
Forecast features:
Northern lights Visibility score at a glance
KP index and cloud cover tracking
Hourly aurora activity forecast
5-day aurora forecast overview
Cloud coverage map with an easy legend
Quick refresh + location selection
Get alerts when the sky is promising
Turn on Aurora Alerts and set your own threshold, so you’re notified when conditions improve.
Be ready for the night
Aurora hunting often means cold, wind, and long waits.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
added a scientific forecast for solar storms. so users can plan as good as possible what night to go out.
aurora-tromsWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
No itemized purchase list is available for this listing.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.