Comparison

hackAIR vs Youth4Climate

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

Head to head
About

hackAIR

Features
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With air pollution being the number one environmental concern of citizens and one of the most significant factors posing threat to their health, hackAIR provides reliable information on the current and forecast air quality levels, based on official and model data, and observations from users. Beyond air pollution, extreme heat events and wildfires are some of the most important environmental factors that affect wellbeing. hackAIR has been recently upgraded to include information about the current and forecast thermal comfort conditions and about the probability of forest fires based on model data. Now you can have a more complete overview of the local environmental conditions that help you make informed decisions to protect yourself. hackAIR offers personalized recommendations to registered users on how they can safeguard themselves from adverse environmental conditions. The app is location-based and real-time, offering a map-based interface to the data available. hackAIR offers several ways for you to contribute your own observations: 1. You can state how you feel the current air quality and outdoor temperature at your location and help other users understand the current conditions 3. hackAIR provides instructions on how you can easily build mini air quality monitoring devices and see their measurements in the app 4. Experienced users can submit and access data using an online interface (API).

About

Youth4Climate

Features
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Hosted by UNDP's Youth4Climate team this app is a go-to knowledge space dedicated to youth and climate, a conduit for discussions and knowledge sharing, innovative and co-shaped capacity building/training programs, webinars, and networking opportunities. Join the community today!

Screenshots

hackAIR4 screens
Youth4Climate4 screens

Verdict

The call

The clearest difference is update cadence: hackAIR at fortnightly against Youth4Climate's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

hackAIR ships an update fortnightly, Youth4Climate every 9 months. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

Scorecard1 real difference ยท 5 level
hackAIR versus Youth4Climate: the parameters behind the verdict, then further details
ParameterhackAIRYouth4Climate
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better14.0
Further details โ€” not scored
Size9 MB5 MB
Age rating12+4+
DeveloperDraxisOpen Social N.V.

In-app purchases

None

hackAIR

No in-app purchases

None

Youth4Climate

No in-app purchases

Questions

Is hackAIR free?
hackAIR is free to download, with no in-app purchases.
Is Youth4Climate free?
Youth4Climate is free to download, with no in-app purchases.
Do hackAIR or Youth4Climate have ads?
Neither hackAIR nor Youth4Climate shows ads.
Which is updated more often, hackAIR or Youth4Climate?
hackAIR ships an update fortnightly, and Youth4Climate every 9 months. Most recently, hackAIR was updated on October 17, 2026 and Youth4Climate on October 19, 2026.

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