# One Mekong vs AirGradient Map

The clearest difference is update cadence: One Mekong at fortnightly against AirGradient Map's every 2 months. One Mekong also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

One Mekong ships an update fortnightly, AirGradient Map every 2 months. The most recent releases landed on September 11, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | One Mekong | AirGradient Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/airgradient-map/id6752292182/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | — | Free |
| Size | 180 MB | 35 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Thanawat Wetchapan](https://appshunter.io/developer/1778225357) | [AirGradient Ltd.](https://appshunter.io/developer/1838635986) |

## What reviewers say

### One Mekong

[App page](https://appshunter.io/ios/app/one-mekong/id6737837864)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### AirGradient Map

[App page](https://appshunter.io/ios/app/airgradient-map/id6752292182)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One Mekong free?

One Mekong is free to download, with no in-app purchases.

### Is AirGradient Map free?

AirGradient Map is free to download, with no in-app purchases.

### Do One Mekong or AirGradient Map have ads?

Neither One Mekong nor AirGradient Map shows ads.

### Which is updated more often, One Mekong or AirGradient Map?

One Mekong ships an update fortnightly, and AirGradient Map every 2 months. Most recently, One Mekong was updated on September 11, 2026 and AirGradient Map on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*