Kumorb vs Active Aurora
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kumorb
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Kumorb is a new weather app centered around graphs. ■ Intuitive Graph Display View 24 hours of weather changes at a glance with graphs. Understand weather patterns intuitively without reading through numbers. ■ Comprehensive Weather Data • Temperature and feels-like temperature • Precipitation probability and amount • Cloud cover • Atmospheric pressure • Humidity • Wind speed and direction Customize which items to display. Show only the information you need. ■ Tap for Details Tap the graph to view detailed data for that time. Quickly check the weather for any time period you're interested in. ■ Multiple Locations Add frequently visited places in addition to your current location. Swipe to switch between locations. ■ Simple Settings • Temperature unit (°C / °F) • Time format (12-hour / 24-hour / System default)
Active Aurora
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Never miss the aurora again. Active Aurora is a free aurora forecast and alert app for the northern lights (aurora borealis) and the southern lights (aurora australis), with live tracking for over 167,000 locations worldwide. Set your location once and Active Aurora watches the sky for you. When aurora activity rises near you, you get an instant push or email alert, so you can stop refreshing and head outside at the right moment. AURORA ALERTS THAT MATTER • Instant alerts when aurora activity climbs at your location • Choose your level, from Minor to Severe • Extra alerts for solar wind shocks, substorms and IMF (Bz) surges • Push notifications, email, or both, with your choice of alert sound LIVE AURORA FORECAST • A live activity dial showing current aurora conditions at a glance • 1-hour and 3-hour aurora forecasts tailored to your location • 3-day Kp index forecast with the best viewing times highlighted • Live aurora map with the auroral oval and real-time sighting reports SKY WATCH: LET YOUR PHONE KEEP WATCH No more setting an alarm every hour to check the sky. Point your phone at the night sky, turn on Sky Watch and go to sleep. It watches all night and sounds an alarm the moment it spots aurora. What the camera sees is never stored or uploaded. SPACE WEATHER DATA FOR AURORA CHASERS • Solar wind speed, density and Bz / IMF • Kp index and geomagnetic storm levels (G1 to G5) • Substorm strength from ground magnetometers • Hemispheric power, GOES data and detailed charts WHY ACTIVE AURORA Most aurora apps just repeat the global Kp index. Active Aurora combines satellite solar wind data with ground magnetometers across three continents to give a local reading for where you actually are. That works whether you're chasing the northern lights in Iceland, Norway, Finland, Canada, Alaska or Scotland, or the southern lights in New Zealand, Tasmania and southern Australia. Free to use, with no account needed to get started.
Screenshots
Verdict
The clearest difference is iOS requirement: Active Aurora at 15.0 against Kumorb's 17.0. 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.
| Parameter | Kumorb | Active Aurora |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuto Kumazaki | Matthew Davison |
In-app purchases
Kumorb
No in-app purchases
Active Aurora
No in-app purchases









