Northern Lights Tracker vs Aurora Eos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Northern Lights Tracker
This app provides real-time predictions and forecasts for the aurora borealis using NOAA space weather data. It helps users find the best viewing locations and times, offering smart alerts and interactive maps for an optimal aurora hunting experience.
- Real-time aurora probability
- NOAA-powered KP index
- Interactive global aurora maps
- Best viewing location recommendations
- Space weather data monitoring
- Smart aurora alerts
- Apple Watch integration
Read full descriptionHide full description
Never miss the northern lights again. Northern Lights Tracker tells you whether tonight is worth going out, when to look and where to go. It turns live NOAA space weather data into one clear aurora chance for your exact location. Tonight at a Glance • Aurora chance for your location, updated live • A clear verdict, from "Go look now" to "Not tonight", with activity, solar wind, moon and cloud factors • Best viewing time and the best 2-hour window • Current Kp index and a 3-day Kp outlook • Search any place and save your favorite spots • Share tonight's forecast with friends Aurora Alerts Get notified when the aurora is likely where you are. Choose a chance alert, a Kp alert, a storm early warning up to 24 hours ahead, or a solar wind (Bz) alert with your own threshold. Chance and solar wind alerts wait until it is dark, and quiet hours keep your nights undisturbed. Storm and solar wind alerts can arrive as time-sensitive notifications, with your choice of sound or vibration. You decide how often the app checks: every 15, 30, 60 or 180 minutes. Lock Screen, Widgets and Apple Watch • Home Screen widgets with chance, Kp, peak time and a 12-hour chart • Lock Screen widgets • Live Activity: follow tonight's chance on the Lock Screen and in the Dynamic Island • Apple Watch app with your chance and Kp at a glance, plus watch face complications • Ask Siri for tonight's aurora chance without opening the app Space Weather in Detail • Hour-by-hour aurora chance for the next 24 hours • Tonight's Sky: sunset, dark hours, sunrise and moon phase, including polar night and midnight sun • Cloud cover from Apple Weather • Solar wind: Bz, total field, speed and density, with charts for the last 3 hours • 27-day Kp outlook to plan trips weeks ahead Map and Best Places • Live map of the NOAA aurora oval. Long-press anywhere to check the chance there • 15 top aurora destinations ranked by tonight's chance, with distance from you: Tromsø, Svalbard, Rovaniemi, Inari, Sodankylä, Reykjavik, Kiruna, Abisko, Jokkmokk, Fairbanks, Anchorage, Yellowknife, Churchill, Murmansk and Nuuk • Open any spot in Apple Maps or Google Maps for directions Aurora AI Ask in your own words, like "Should I go out tonight?" Aurora AI answers from the live forecast, privately on your device. Requires Apple Intelligence on a supported device. More • Personalized setup: a short quiz tunes your alerts to the way you watch the sky • Forecast history • 11 aurora wallpapers • Works offline with your last forecast • Available in 46 languages Northern Lights Tracker Pro unlocks all alerts, detailed sky and space weather data, and unlimited use of every feature. Privacy: https://sites.google.com/view/aurora-forecast-tracker/main Terms: https://sites.google.com/view/aurora-forecast-tracker-terms/main
Aurora Eos
Read full descriptionHide full description
Never miss the Northern Lights again. Aurora Eos delivers precise KP index forecasts, real-time geomagnetic data, and solar wind predictions—all in one beautifully designed app. Plan your aurora hunting adventures with confidence using our accurate 3-day forecasts and location-based predictions. Our intuitive interface transforms complex space weather science into clear, actionable insights that help you catch the aurora at the perfect moment. Key Features ▶ Accurate 3-Day KP Index Forecasts Get precise aurora predictions with our advanced KP index forecasting system. We analyze geomagnetic data from multiple trusted sources to deliver reliable 3-day forecasts that help you plan your aurora viewing trips with confidence. ▶ Real-Time Geomagnetic Monitoring Stay informed with live geomagnetic activity tracking and solar wind data. Our app continuously monitors space weather conditions and alerts you the moment aurora conditions become optimal in your location. ▶ Instant Aurora Alerts Never miss an aurora opportunity. Receive push notifications when KP index reaches optimal levels for your area. Set custom alert thresholds and get notified whether you're at home or traveling to prime aurora viewing locations. Additional Features ▶ 3D Aurora Oval Follow the live aurora oval and see where northern lights may appear. Stay informed with live geomagnetic activity tracking and solar wind data. ▶ The Easiest Aurora Forecast Read the easiest aurora forecast with solar and Earth weather together. Never miss the Northern Lights again. ▶ KP Forecast Widgets Check KP forecast widgets and aurora chances without opening the app. Never miss an aurora opportunity. ▶ 3-Day KP Forecast Compare KP index, cloud cover, and darkness across a 3-day forecast. Get precise aurora predictions with our advanced KP index forecasting system. ▶ Flight Path Planning Plan flight paths and find aurora viewing windows along your route. Plan your aurora hunting adventures with confidence using our accurate 3-day forecasts and location-based predictions. ▶ Expert Data Made Easy Understand solar wind and space weather data without expert jargon. Our intuitive interface transforms complex space weather science into clear, actionable insights that help you catch the aurora at the perfect moment. Turn complex aurora science into a clear forecast. Get notified when KP index conditions are optimal, track geomagnetic activity in real time, and visualize aurora patterns with 3D models. Whether you're planning a trip or checking tonight, Aurora Eos helps you get ready for the Northern Lights. [Contact & Support] Email: skyu.dev@gmail.com - Terms of Use: https://labs.quartz.best/en-US/aurora-eos/terms-of-use - Privacy Policy: https://labs.quartz.best/en-US/aurora-eos/privacy-policy
Screenshots
Verdict
The clearest difference is update cadence: Aurora Eos at every 11 days against Northern Lights Tracker's every 3 weeks. 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. Northern Lights Tracker sells 5 in-app purchases, starting at $3.99 per 7 days and Aurora Eos sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Northern Lights Tracker ships an update every 3 weeks, Aurora Eos every 11 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Northern Lights Tracker | Aurora Eos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (191 ratings) — better | — |
| Positive reviews | 62.0% of reviews | — |
| Number of ratings | 191 — better | — |
| Update frequency | Every 3 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 50 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Mehmet Ali Demir | Seokyoung You |
Bugs and requests
Northern Lights Tracker
Reported bugs
5 issues- App crashes out of nowhere
- Phone part of app shows 0%
- Enable Notifications continuously shuts itself OFF
- Data seems outdated and freezes
- App crashes in Norway
Requested features
5 requests- Add widgets
- Correlate probability to times
- Show probability over time (next 24 hours)
- Allow setting threshold for 'good chance' notifications
- Show readings for around the world
Aurora Eos
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Northern Lights Tracker
- Weekly3 Days trial$3.997 Days
- week$3.997 Days
- month3 Days trial$5.991 Month
Show 1 moreShow fewer
- year$34.991 Year
- Lifetime Premium$49.99
Aurora Eos
- Monthly Pro3 Days trial$5.991 Month
- Yearly Pro3 Days trial$29.991 Year
- Pro Plan for lifetime$69.99
Questions
Is Northern Lights Tracker free?
Is Aurora Eos free?
Do Northern Lights Tracker or Aurora Eos have ads?
Which is updated more often, Northern Lights Tracker or Aurora Eos?
Other comparisons















