AuroraTonight! vs Aurora
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AuroraTonight!
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AuroraTonight! is based on an advanced machine learning model that can predict magnetic perturbations around the world up to two hours in advance with unprecedented accuracy. The strongest magnetic perturbations are caused by the aurora, so we can forecast the aurora for any location an hour earlier than the other models. The app provides global notifications up to three days ahead based on NOAA forecast and local alerts up to two hours ahead. The local alerts take into account darkness and clear sky conditions.
Aurora
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Follow the auroras with real-time data, Kp index forecasts, and more. • Chance to see auroras at your location • Real-time aurora map • Kp index activity • 3-day forecast and 27-day outlook • 7-day Kp index history • Home Screen and Lock Screen widgets
Screenshots
Verdict
The clearest difference is update cadence: Aurora at every 6 days against AuroraTonight!'s monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AuroraTonight! ships an update monthly, Aurora every 6 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | AuroraTonight! | Aurora |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 4 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | The University of Michigan | Pierre Vidal |
In-app purchases
AuroraTonight!
No in-app purchases
Aurora
No in-app purchases
Questions
Is AuroraTonight! free?
Is Aurora free?
Do AuroraTonight! or Aurora have ads?
Which is updated more often, AuroraTonight! or Aurora?
Other comparisons
