Comparison

Thermometer++ App vs Hello Aurora

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

Head to head
About

Thermometer++ App

Transform your device into a precise thermometer. Get real-time outdoor temperature, humidity, pressure, and wind data for your current location. Utilizes AI to combine data from multiple sources for accurate, up-to-the-minute weather information.

Highlights
  • Real-time temperature, humidity, pressure, and wind
  • Thermometer, barometer, and hygrometer functions
  • Current location or custom location selection
  • Celsius and Fahrenheit display
  • AI-powered weather predictions
  • Minimalistic data display
Features
Currently charting
Read full description

Turn your iPhone into a fast and accurate thermometer. Check the current outdoor temperature, humidity, pressure, and wind at your location. Used by over 5,000,000 people worldwide! Most weather apps merely display data from the nearest weather station, which could be hundreds of kilometers away and more that an hour outdated. We utilize AI technologies to combine data from multiple weather stations, providing accurate predictions for temperature, humidity, pressure, and wind at your current location in real-time. Features: - Shows temperature, humidity, pressure, and wind. You can use it as a thermometer, barometer, or hygrometer. - Use your current location or choose any location on a map. - Minimalistic design: shows only the necessary data. - Displays Celsius and Fahrenheit degrees on a beautiful thermometer picture. - Switch between Celsius and Fahrenheit degrees with a tap. - Helps you quickly decide what to wear. - Helps you keep track of the weather during heat and cold waves. Permissions: - Location (optional): Used to automatically show the weather for your current location. You can also choose a custom location manually from the map — no permission is required for that. Privacy policy: https://www.singularioapps.com/thermometer-privacy/ Terms of service: https://www.singularioapps.com/thermometer-terms/

About

Hello Aurora

Track and forecast the Northern Lights with real-time updates and community-shared sightings. Receive instant alerts for aurora activity and view a live map of current displays. Connect with other aurora enthusiasts and share your experiences.

Highlights
  • Real-time aurora forecast
  • Instant aurora alerts
  • Live Northern Lights map
  • Aurora community and photo sharing
  • Aurora Passport for tracking sightings
  • Customizable alerts and locations
Features
Read full description

Hello Aurora: the Northern Lights tracker trusted by 330,000+ users. 110,000+ aurora sightings reported since 2020. Get a live Northern Lights forecast and instant aurora alerts, wherever you are. Hello Aurora tells you exactly when to look up. “Best aurora app out there” – App Store user “Good app with lots of data” – App Store user NORTHERN LIGHTS FORECAST FOR YOUR LOCATION - Real-time updates: Live aurora forecast updated every few minutes, sourced from the closest data points to your coordinates. - Local metrics: Track real-time aurora strength, Bz levels, and viewing conditions tailored to you. - Peak hours (Pro): Discover today's best viewing windows at your location powered by community data. INSTANT AURORA ALERTS - Aurora Sighting Alert: Get an instant aurora alert when users spot the lights nearby. - Geomagnetic Storms: Get notified when a geomagnetic storm is predicted (G1 to G5). - Solar Wind Shocks: Receive alerts up to an hour before a shock arrives and the exact second it hits. - Substorm Alert: Trigger a high-priority aurora alert when a substorm starts. - Pro Filters: Customize distance radius, photo-only sightings, intensity levels, and Bz threshold drops. LAST NIGHT’S SUMMARY (PRO) - Local Sightings: See aurora reports from last night. - Countries reach: Discover how many countries witnessed the Northern Lights. - Northern Lights map & photos: View exact aurora locations and top photos with timestamps. - Peak real-time metrics: Check minimum aurora strength and Bz levels. LONG-TERM NORTHERN LIGHTS FORECAST - 27-day guide: Plan ahead with a long-range aurora forecast looking up to 27 days in advance, including the full solar rotation breakdown for Pro users. - 12 months seasonal outlook: Pro users can find the best week to view the Northern Lights over the next 12 months using historical solar cycles and 6+ years of exclusive data. LIVE NORTHERN LIGHTS MAP - Live Aurora Map: See exactly where the Northern Lights are occurring right now. - Aurora Oval & Cloud Tracking: Track the aurora oval expansion and find clear skies with total/low cloud filters. - Community Sightings: View live reports. Pro users can filter pins to the last 30 minutes or last night. - 3D Globe (Pro): Enjoy interactive 3D visualizations. AURORA PASSPORT & COMMUNITY (PRO) - Track Your Journey: Record sightings, countries visited, likes, and points in your personal gallery. - Verified Community: Share and view live, location-verified photos with strict 1-hour reporting rules. EASY TO USE & 100% AD-FREE - One Northern Lights tracker for everything you'll need - Global coverage: Add custom locations worldwide. - Sightings alerts supported in Iceland, Norway, Sweden, Finland, Canada, US, UK, Germany, Italy, France, Poland, Austria, and Switzerland. - No Ads: Enjoy a clean experience on both Free and Pro versions. - Multilingual: Available in English, French, German, Spanish, Portuguese, Swedish, Norwegian, Finnish, and Thai. Download Hello Aurora now and be ready when the lights dance. Save money on tours with this ultimate northern lights tracker! Website: hello-aurora.com Support: contact@hello-aurora.com Apple TOS: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * Data based on Hello Aurora dashboard as of September 2026.

Screenshots

Thermometer++ App3 screens
Hello Aurora4 screens

Verdict

The call

The clearest difference is ads: Hello Aurora at none against Thermometer++ App's shown. Hello Aurora also leads on update cadence (every 9 days vs every 5 weeks) and iOS requirement (16.4 vs 18.6). Thermometer++ App's advantage is review sentiment (75% vs 45%) and ratings volume (7.3K vs 149). On price, in-app purchases, monetization model and chart position 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. Thermometer++ App sells 3 in-app purchases, starting at $0.99 per month and Hello Aurora sells 14 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Thermometer++ App holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Thermometer++ App has 7.3K ratings behind it against 149, so its average is the more settled of the two. Written reviews point the same way: 75% of Thermometer++ App's written reviews are positive against 45% of Hello Aurora's.

UpkeepUpdate frequency

Thermometer++ App ships an update every 5 weeks, Hello Aurora every 9 days. Both last shipped on November 1, 2026.

Scorecard6 real differences · 5 level
Thermometer++ App versus Hello Aurora: the parameters behind the verdict, then further details
ParameterThermometer++ AppHello Aurora
PriceFreeFree
Rating4.7 (7.3K ratings) — better4.5 (149 ratings)
Positive reviews75.1% of reviews — better44.8% of reviews
Number of ratings7.3K — better149
Update frequencyEvery 5 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#100 — better#134
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.4 — better
Further details — not scored
Size22 MB99 MB
Age rating4+12+
DeveloperViachaslau TysianchukJeremy Barbet

Customer experience

Thermometer++ App

All ratings7,288 ratings
Positive93.6%
Neutral3.4%
Negative3.0%
Written reviews341 reviews
Positive75.1%
Neutral7.3%
Negative17.6%

Hello Aurora

All ratings145 ratings
Positive84.8%
Neutral5.5%
Negative9.7%
Written reviews67 reviews
Positive44.8%
Neutral14.9%
Negative40.3%

User reviews

Thermometer++ App

From 7.3K App Store ratings

What we love

  • 🚀 Accurate temperature readings
  • 👍 Simple and easy to use
  • 🔍 Provides humidity information
  • 🌍 Works well in different locations

Room to improve

  • 🐛 Inconsistent temperature readings
  • 🗺️ Inaccurate location detection
  • 🔌 Doesn't work without internet connection
  • 💰 Paid version required to remove ads

Hello Aurora

From 149 App Store ratings

What we love

  • ✨ Best aurora app
  • 🚀 Helps find northern lights
  • 👍 Excellent for novices and experienced
  • 🗺️ Great map with community sightings
  • 💡 Informative and useful

Room to improve

  • 🐛 Features removed from free version
  • ❌ No location detection
  • ❌ Constant alarms from Norway
  • ❌ Cannot be used without account
  • ❌ Registration mandatory

Bugs and requests

Thermometer++ App

Reported bugs

2 issues
  • Temperature reading stuck at a constant value
  • App crashes when opening in certain locations

Requested features

3 requests
  • Add indoor temperature monitoring
  • Provide weather forecast information
  • Include a widget for quick temperature access

Hello Aurora

Reported bugs

25 issues
  • No images, no location detection
  • Constantly getting alarms from Norway, not from direct surroundings
  • App won't get past email verification screen
  • App would NOT allow reporting or sharing photos stating none could be visible
  • Map view: cannot click to see photos taken in the same location
Show 20 more
  • App crashes every second startup
  • App is stuck at opening screen
  • App crashes right after it starts up
  • Paid for the app and yet it would never upload any of my photos
  • Cannot add my photos in app
  • App won't load, just stays on the black screen with the logo
  • It says Houston we have a problem. And you do. It’s not working after you said you fixed bugs but might have broken other things
  • Unable to create an account, receiving 'Network request failed.'
  • App didn’t let me share a moment saying that it’s impossible to spot northern lights in my location
  • The app may simply tell you “aurora are rarely seen at your location,” and won’t show any data.
  • Last update crashed the app, makes it unusable
  • Network error during signup
  • An unexpected error happened… please restart the app. Repeatedly.
  • App doesn’t show the Pro Account after subscription confirmation.
  • App caching, not getting new data for up to 20 minutes.
  • App doesn’t start up and constantly crashes.
  • It crashes in few seconds on iPhones.
  • Crashing on start up after creating an account.
  • Lagging, got kicked out of the app, cannot open it again.
  • App doesn’t work, cannot open it.

Requested features

12 requests
  • Allow users to use the app without an account with just reading access.
  • Allow uploading photos after the fact and specifying date, time, location.
  • Add option to pick notifications for various parts of USA.
  • Add Spanish language option.
  • Show percentage of seeing Aurora even if it's zero.
Show 7 more
  • Show Aurora strength even if it's zero.
  • Provide detailed information when clicking for more details.
  • Allow users to personalize the app to change location for monitoring.
  • Add an option to sign in/up with Apple.
  • Show location in the corner of moments on the map view.
  • Rejig app to accommodate Aurora Australis.
  • Graph on homepage could be reversed (negative on top).

In-app purchases

3 purchases

Thermometer++ App

Subscriptions2
  • Premium Version, Monthly$0.991 Month
  • Premium Version, Yearly$2.991 Year
One-time1
  • Premium Version, Lifetime$4.99
14 purchases

Hello Aurora

Subscriptions10
  • Pro Account$1.991 Month
  • Hello Aurora Pro$2.991 Month
  • Hello Aurora Pro4 variants$3.997 Days
Show 7 more
  • Hello Aurora Pro2 variants$4.591 Month
  • Hello Aurora Pro$4.691 Month
  • hello aurora pro$4.697 Days
  • hello aurora Pro$4.691 Month
  • Hello Aurora Pro1 Year trial$36.901 Year
  • hello aurora Pro$42.901 Year
  • Hello Aurora Pro$46.901 Year
One-time4
  • Beginner$1.99
  • Supporter$3.99
  • Sponsor$7.99
Show 1 more
  • Premium$11.99

Questions

Is Thermometer++ App free?
Thermometer++ App is free to download, with in-app purchases available.
Is Hello Aurora free?
Hello Aurora is free to download, with in-app purchases available.
Which has better reviews, Thermometer++ App or Hello Aurora?
Thermometer++ App is rated higher. Thermometer++ App averages 4.7 out of 5 from 7.3K ratings, while Hello Aurora averages 4.5 from 149 ratings.
Do Thermometer++ App or Hello Aurora have ads?
Thermometer++ App shows ads; Hello Aurora does not.
Which is updated more often, Thermometer++ App or Hello Aurora?
Thermometer++ App ships an update every 5 weeks, and Hello Aurora every 9 days. Most recently, Thermometer++ App was updated on November 1, 2026 and Hello Aurora on November 1, 2026.
Which is more popular, Thermometer++ App or Hello Aurora?
Thermometer++ App currently peaks at #100 in the App Store charts, and Hello Aurora at #134. Chart position reflects recent download velocity rather than total install base.

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