airAlert vs Meng Loft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
airAlert
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The airAlert app allows users to see forecast air pollution and cold levels in chosen areas on the south of England. The app also currently can show coldAlert levels as well. The service, provided by the Sussex Air Quality Partnership (Sussex-air), sends free messages direct to vulnerable people informing them about air pollution or cold levels in their area. airAlert is targeted at people with respiratory health problems who may be affected by air pollution or cold. airAlert warns people the day before or on the day that elevated air pollution is expected to occur. airAlert sends a voice,text message or notification direct to you (via your mobile or home telephone, email or by notification to the airAlert app or via webpages or RSS on your PC) Current the service covers 4 areas in the south of England (Sussex, Surrey, Sevenoaks and Southampton).
Meng Loft
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Meng Loft is the official air quality mobile application of the Environment Agency Luxembourg (The Luxembourg Government - Ministry of the Environment, Climate and Biodiversity). Meng Loft provides a variety of useful information for people interested in the air quality in Luxembourg: • Check the latest air quality data, illustrated using Luxembourg's official Air Quality Index (AQI). • Get the AQI according to your geo-localization. • Get specific recommendations for sport and health according to the current AQI. The recommendations are targeted to both sensitive or more vulnerable population and general public. • Check the latest air quality status at all stations on a map or through a list. • Check the AQI and main pollutants tendency for ozone (O3), nitrogen dioxide (NO2) and airborne particulate (PM10) at station level. • Read the sections “about air quality” and “health and advices” for further information about the pollutants and their effects. • Share air quality information on Twitter, Facebook or just e-mail it to a friend. • Receive 3 types of notification during ozone episode: [New] • The air quality bulletin that provides informations on recent levels and forecast for the coming days. • The short-term action (national disposition). In case of exceedance of the pre-information threshold (160 µg/m3), it’s asked to the CITA to limit the speed on the motorway at 90km/h. • The alert and information announcements related to the exceedance of the EU information (180 µg/m3) and alert (240 µg/m3) thresholds. These announcements contains also precautions for sensitive persons and behavior advices. • Receive also notifications for the stations on the measuring network. A notification will be sent when any particular station exceeds the choosen index (choice available for index between 6 and 10). You will receive another notification when air quality levels improve (index below 6) [New] • Furthermore, you will receive notifications in case of forecasted maintenance or technical problem that had negative impact on “Meng Loft” [New] • Configure to your needs the different notification types via “Notification settings” and access to the new notifications with “Notification list” [New] New functions • A notification service including 2 new sections: “Notification settings” & “List of notification”. • The “Notification settings” allows the user to sign up for “Official AEV Alerts”, “Index notifications” and “App maintenance”. • The “Notification list” provides access to all received notifications. • Some Updates/Corrections: The new logo of MECDD, improvements on calculation of the global air quality index, addition of “cache” to minimize data download and some minor bugs fixing to improve the usage of Meng Loft.
Screenshots
Verdict
The clearest difference is update cadence: Meng Loft at every 6 months against airAlert's every 35 months. airAlert's advantage is iOS requirement (8.0 vs 15.0). 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. Neither carries in-app purchases, so what you see is what you pay.
airAlert ships an update every 35 months, Meng Loft every 6 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.
| Parameter | airAlert | Meng Loft |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 35 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Environmental Research Group-King's College London | Administration de l'environnement |
In-app purchases
airAlert
No in-app purchases
Meng Loft
No in-app purchases









