# Airly vs Hydrozagadka

The clearest difference is update cadence: Airly at every 5 weeks against Hydrozagadka's every 4 months. 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.

Airly ships an update every 5 weeks, Hydrozagadka every 4 months. The most recent releases landed on October 16, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Airly | Hydrozagadka |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (415 ratings)](https://appshunter.io/ios/app/airly/id1283400152/reviews)** | — |
| Number of ratings | **415** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 36 MB | 3 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Airly](https://appshunter.io/developer/1251569841) | [LC Systems Sp. z o.o.](https://appshunter.io/developer/1030347995) |

## What reviewers say

### Airly

[App page](https://appshunter.io/ios/app/airly/id1283400152)

Monitor real-time air quality in your location with a vast sensor network. Get reliable pollution data, forecasts, and notifications about exceeded standards. Plan your activities based on the air you breathe.

**Highlights:** Real-time air quality monitoring, Largest sensor network in Poland, WHO standard compliance, Next-day air quality forecast, Push notifications for pollution alerts, Home and work place sensor favorites, Widgets for quick access

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 😊 Great way to track air quality
- 👍 Useful for knowing pollution levels
- 👍 Works well in specific locations (Poland)
- 👍 Great UI/UX
- 👍 Easy to use and clear

**What reviewers complain about**

- 🐛 Widget shows incorrect/no sensor data
- 🐛 Location requirements are unclear/excessive
- 🐛 Map quality is poor in portrait mode
- 🐛 Lacks Spanish language support
- 🐛 No indication of data update time

**Reported bugs**

- Complications on Apple Watch not showing AQI
- Widget provides no indication or incorrect data
- App requires location sharing always, even when zip code can be used for widgets
- Cannot find location
- Broken widget

**Requested features**

- Add Apple Watch complications for AQI
- Allow widget to show nearest sensor data
- Add Spanish language support
- Indicate data update time
- Allow viewing historical data beyond 2 days


### Hydrozagadka

[App page](https://appshunter.io/ios/app/hydrozagadka/id1551237889)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Airly free?

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

### Is Hydrozagadka free?

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

### Do Airly or Hydrozagadka have ads?

Neither Airly nor Hydrozagadka shows ads.

### Which is updated more often, Airly or Hydrozagadka?

Airly ships an update every 5 weeks, and Hydrozagadka every 4 months. Most recently, Airly was updated on October 16, 2026 and Hydrozagadka on September 29, 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.*