Comparison

Tempest Weather vs AirGradient Map

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

Head to head
About

Tempest Weather

This app connects to a proprietary weather sensor to provide real-time local weather data, lightning and rain alerts, and highly accurate forecasts. It integrates with smart home devices for optimized energy and water usage, and offers customizable data sharing.

Highlights
  • Real-time weather conditions
  • Lightning and rain alerts
  • Accurate 10-day forecast
  • Smart home integration
  • Historical weather data
  • Customizable data sharing
Features
Currently charting
Read full description

This app requires the Tempest sensor device, which is available to buy separately. Need to set up and configure your Tempest Weather System? The Tempest app will walk you through a few simple steps, including connecting your home’s WiFi network. Once you’re up and running the app will quickly become your go-to for real-time weather conditions, lightning and rain alerts, and the most accurate forecast for your location - guaranteed. Data available in the Tempest app includes: Temp, humidity, dew point, feels like, heat index Barometric pressure, sea-level pressure, trends Lightning detection and alerts up to 40 km Wind, UV, solar irradiance Rain rate, accumulation, rain onset alerts 10-day forecast Historical weather data graphs Smart Home Ready: Use this app to save time, energy, and water by integrating with popular smart home and irrigation services. Use your weather data to optimize heating and cooling, adjust your irrigation schedule, and alert your family when lightning storms approach. Tempest is compatible with Google Assistant, Rachio, IFTTT, Siri, Alexa, Homey, and many more. Weather Geek Worthy: The Tempest device features an all-in-one sensor and long-range wireless connectivity (1000ft), sonic anemometer, and haptic rain sensor, but it is far more than just a cutting-edge piece of hardware. Each Tempest leverages WeatherFlow-Tempest’s patented Nearcast Technology™, which feeds real-time observed weather data from your backyard into a machine learning system to dramatically improve forecast accuracy where it matters most. Completely Customizable: Tempest’s open API and shareable data enable third-party use, with built-in publication to desktop software and online services.

About

AirGradient Map

Get real-time, accurate air quality data with a live map, personalized alerts, and science-based guidance. Plan your day, reduce exposure, and protect your health with actionable insights.

Highlights
  • Live AQI and PM2.5 map
  • Personalized air quality alerts
  • Global coverage
  • Science-based guidance
  • Home and Lock Screen widgets
  • Offline-aware status
Features
Read full description

Accurate, actionable air quality in real time. Know your local AQI and PM2.5 with clear steps to plan your day and reduce exposure. What you get: - Live map with AQI and PM2.5 for places you care about - Alerts when air quality changes at your saved locations - Global coverage in nearly all countries - Simple, science-based guidance on what to do next - Home and Lock Screen widgets for glanceable AQI - Offline-aware status for uninterrupted awareness - Tips and guidance in the in-app Blog - Localized experience in English, Arabic, Chinese (Simplified), French, German, Hindi, Indonesian, Khmer, Lao, Spanish, Thai, and Vietnamese Make better decisions every day: - Reduce exposure during smoke or smog events - Time workouts and outdoor plans with confidence - Protect kids, elders, and sensitive groups - Travel confidently with saved places and alerts Data you can trust: - Shows air quality from trusted reference stations and AirGradient monitors worldwide - Built on established air quality standards with transparent, science-informed methods Built by AirGradient: - Created by AirGradient, a social-impact business with a strong scientific background - The team behind open-source air quality monitors used by schools, researchers, and communities globally - Our mission: raise awareness of the dangers of air pollution and empower action - We work with small grassroots organizations and major international organizations like UNICEF and UNDP, and with leading universities such as the University of Cambridge Community and impact: - Featuring communities from around the world, fighting air pollution together - Read real stories, learn what works, and take action locally - Join a global movement to improve the air we all share Design and performance: - Optimized for iOS 26 with a liquid glass UI - Smooth interactions, refined haptics, and fast updates - Thoughtful accessibility support for larger text and VoiceOver Privacy and control: - Location is optional - search and save places manually if you prefer - Clear settings and easy controls to manage alerts and data Quick definitions: - AQI: Air Quality Index, a simple scale for overall air quality - PM2.5: Fine particles (≤2.5µm) that can affect heart and lung health Get the air quality that matters to you - accurate, timely, and easy to act on. Disclaimer: This app provides informational guidance only and is not a medical device or medical advice.

Screenshots

Tempest Weather4 screens
AirGradient Map4 screens

Verdict

The call

The clearest difference is rating: AirGradient Map at 5.0 against Tempest Weather's 4.0. AirGradient Map also leads on review sentiment (86% vs 62%). Tempest Weather's advantage is ratings volume (493 vs 11) and update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

AirGradient Map holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Tempest Weather has 493 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 62% of Tempest Weather's written reviews are positive against 86% of AirGradient Map's.

UpkeepUpdate frequency

Tempest Weather ships an update every 3 weeks, AirGradient Map every 2 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 4 level
Tempest Weather versus AirGradient Map: the parameters behind the verdict, then further details
ParameterTempest WeatherAirGradient Map
PriceFreeFree
Rating4.0 (493 ratings)5.0 (11 ratings) — better
Positive reviews61.9% of reviews85.7% of reviews — better
Number of ratings493 — better11
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#153 — better—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size44 MB35 MB
Age rating4+12+
DeveloperWeatherFlowAirGradient Ltd.

Customer experience

Tempest Weather

All ratings493 ratings
Positive72.6%
Neutral11.6%
Negative15.8%
Written reviews189 reviews
Positive61.9%
Neutral15.9%
Negative22.2%

AirGradient Map

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

Bugs and requests

Tempest Weather

Reported bugs

4 issues
  • App freezes on launch
  • Widgets stop working after updates
  • Complications not updating on Apple Watch
  • Location detection issues

Requested features

7 requests
  • Add dark mode
  • Improve graph visualization
  • Integrate with smart home platforms
  • Add more weather data points
  • Improve notification settings
Show 2 more
  • Add Apple TV app
  • Provide more localization options

AirGradient Map

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Tempest Weather

No in-app purchases

None

AirGradient Map

No in-app purchases

Questions

Is Tempest Weather free?
Tempest Weather is free to download, with no in-app purchases.
Is AirGradient Map free?
AirGradient Map is free to download, with no in-app purchases.
Which has better reviews, Tempest Weather or AirGradient Map?
AirGradient Map is rated higher. Tempest Weather averages 4.0 out of 5 from 493 ratings, while AirGradient Map averages 5.0 from 11 ratings.
Do Tempest Weather or AirGradient Map have ads?
Neither Tempest Weather nor AirGradient Map shows ads.
Which is updated more often, Tempest Weather or AirGradient Map?
Tempest Weather ships an update every 3 weeks, and AirGradient Map every 2 months. Most recently, Tempest Weather was updated on September 22, 2026 and AirGradient Map on September 24, 2026.

Other comparisons