Comparison

Aurora Notifier vs Atmos.Guide

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Aurora Notifier

Receive alerts for potential aurora sightings with configurable thresholds for Kp-index and solar wind parameters. See user-submitted photos and real-time observation locations on a 3D globe. A premium version offers advanced technical data and hidden features.

Highlights
  • Aurora sighting notifications
  • Configurable alert thresholds
  • User-submitted aurora photos
  • Real-time observation map
  • Kp-index and solar wind data
  • Premium version with advanced features
Features
Read full description

Aurora notification app with observation reports. Finally available for iOS. This aurora notification app shows notifications when it may be possible to see the northern lights (aurora borealis / australis)! It provides configurable thresholds for local aurora probability, Kp-index (Hp30), solar wind parameters (Bz/Bt) and Kp-level forecast for the evening. It also allows you to be alerted when other app users nearby have seen the aurora light display. For the alert feature to work, other app users register aurora reports when they are successful hunting and get to see the aurora light display. This has proven to be quite successful. Many of the app users also upload pictures of northern lights when they see them, and in this app you can see these pictures. You can also see dots on a 3d-globe animation showing where people have just observed the light show. There are users in the US, Canada, Europe, Australia and New Zealand who regularly report their observations and upload pictures. Although the chances are greater if you live in Alaska, northern Canada, Norway, Sweden, Finland, the southern tip of New Zealand etc, there are also regular opportunities in places like Minnesota, Wisconsin, Washington, Montana, Michigan, Chicago, New York, Scotland, Denmark, Germany, the United Kingdom, France, the Baltics etc. The premium version which can be bought within the app itself offers some more technical information and graphs of Kp-index predictions, cloud cover and solar wind parameters - and some hidden features. The app has an associated X account (@aurora_notifier - https://x.com/aurora_notifier) and an Instagram account (@auroranotifierapp - https://www.instagram.com/auroranotifierapp). Consider following those.

About

Atmos.Guide

Features
Read full description

Atmos tells you what you're actually breathing — and what to do about it. Real air quality, from real stations Live AQI and pollutant readings from monitoring stations near you: PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide. Every number is labelled with the station it came from, so you always know where the reading is measured. Measured the way your country measures it An AQI of 150 doesn't mean the same thing everywhere. Atmos follows your national standard — India (CPCB), China (HJ 633), Thailand (PCD), and the US EPA scale elsewhere — so the number matches what your own agency reports. Wildfire and smoke See active fires on a live map, drawn from NASA satellite detections, and get an alert when smoke is likely to reach your air. A plain-language guide explains what fire and smoke mean for what you're breathing, and tapping an alert opens the map at the fire. Pollen by species Grass, birch, alder, ragweed, mugwort and olive — tracked separately, with a 5-day outlook, because a high birch day and a high ragweed day are not the same problem. Species coverage is currently strongest across Europe. Weather worth trusting Forecasts from MET Norway, the Norwegian Meteorological Institute, with a 5-day outlook, hourly detail inside any day, and sunrise, sunset and remaining daylight at a glance. Ask Atmos Ask a question in plain language — "can I run this evening?", "is it safe to open the windows?" — and get an answer grounded in the readings for your location right now. Every city you care about Follow the places that matter: home, work, family abroad. Each one keeps its own local time, its own national AQI scale, and its own forecast. Morning briefing An optional daily notification with the air, pollen and weather you'll meet today — and alerts when conditions change enough to matter. Privacy No tracking, no advertising, no selling your data. Location is used to fetch readings near you, and nothing else. Data sources: World Air Quality Index, MET Norway (Yr), Open-Meteo, Copernicus CAMS, and NASA FIRMS.

Screenshots

Aurora Notifier3 screens
Atmos.Guide4 screens

Verdict

The call

The clearest difference is in-app purchases: Atmos.Guide at none against Aurora Notifier's 2. Aurora Notifier's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Aurora Notifier sells 2 one-off in-app purchases. Atmos.Guide asks for nothing beyond the download.

UpkeepUpdate frequency

Aurora Notifier ships an update every 5 days, Atmos.Guide every 2 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
Aurora Notifier versus Atmos.Guide: the parameters behind the verdict, then further details
ParameterAurora NotifierAtmos.Guide
PriceFreeFree
Rating4.5 (6 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size20 MB13 MB
Age rating4+4+
DeveloperNaturfakta ASHelm Sens AS

In-app purchases

2 purchases

Aurora Notifier

One-time2
  • Premium upgrade$2.99
  • Premium$3.99
None

Atmos.Guide

No in-app purchases

Questions

Is Aurora Notifier free?
Aurora Notifier is free to download, with in-app purchases available.
Is Atmos.Guide free?
Atmos.Guide is free to download, with no in-app purchases.
Do Aurora Notifier or Atmos.Guide have ads?
Neither Aurora Notifier nor Atmos.Guide shows ads.
Which is updated more often, Aurora Notifier or Atmos.Guide?
Aurora Notifier ships an update every 5 days, and Atmos.Guide every 2 weeks. Most recently, Aurora Notifier was updated on October 9, 2026 and Atmos.Guide on October 11, 2026.

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