# Airthings vs Hydrawise

The clearest difference is monetization model: Hydrawise at free against Airthings's free with in-app purchases. Hydrawise also leads on rating (4.7 vs 4.4) and ratings volume (66K vs 3K). On price, review sentiment, update cadence and ads there is nothing between them.

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

Hydrawise holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Hydrawise has 66K ratings behind it against 3K, so its average is the more settled of the two. Written reviews point the same way: 33% of Airthings's written reviews are positive against 39% of Hydrawise's.

Airthings ships an update fortnightly, Hydrawise every 3 weeks. The most recent releases landed on October 22, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Airthings | Hydrawise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (3K ratings)](https://appshunter.io/ios/app/airthings/id1560329275/reviews) | **[4.7 (66K ratings)](https://appshunter.io/ios/app/hydrawise/id1618847331/reviews)** |
| Number of ratings | 3K | **66K** |
| Positive reviews | 33.0% of reviews | **38.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 104 MB | 141 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Airthings ASA](https://appshunter.io/developer/1101077902) | [Hunter Industries](https://appshunter.io/developer/710090127) |

## What reviewers say

### Airthings

[App page](https://appshunter.io/ios/app/airthings/id1560329275)

Monitor and improve your indoor air quality with smart devices. Get real-time insights, track trends, and receive actionable advice to enhance focus, reduce allergies, and sleep better. Control your air purifier and stay informed about pollen forecasts.

**Highlights:** Quick device setup, At-a-glance air quality indicators, Detailed trend tracking, Air purifier remote control, 5-day pollen forecast, Air quality notifications, Personalized air reports

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple to understand and setup
- 🚀 Intuitive and easy to use app
- 🚀 Efficient and fast
- 🚀 Provides great information on air quality
- 🚀 Accurate and reliable sensor readings

**What reviewers complain about**

- 🐛 App has connectivity issues, often fails to sync
- 🐛 App is buggy and has many errors
- 🐛 Inaccurate or inconsistent sensor readings
- 🐛 Difficult to set up and connect devices
- 🐛 Lack of customization options for thresholds and notifications

**Reported bugs**

- App crashes frequently
- Unable to add new devices or accounts
- Incorrect color coding and data display
- Delayed or missing sensor data updates
- Bluetooth connectivity issues

**Requested features**

- Add HomeKit integration
- Allow custom thresholds and notifications
- Improve data visualization and historical trending
- Add more detailed information on air quality issues and remedies
- Provide an iPad-optimized version of the app


### Hydrawise

[App page](https://appshunter.io/ios/app/hydrawise/id1618847331)

Optimize your irrigation with intelligent watering schedules based on local weather forecasts. This app helps conserve water while ensuring your landscape stays healthy and vibrant. Manage your irrigation system remotely for ultimate convenience.

**Highlights:** Predictive Watering™, Local weather insights, Water savings optimization, Lush landscape creation, Remote irrigation management

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Improved performance
- 💡 Useful features like weather-based watering
- 🔒 Secure system

**What reviewers complain about**

- 🐛 Connectivity issues
- 👎 Confusing user interface
- 🔍 Difficult to find/access certain features
- 📉 Lack of important functionality from previous app

**Reported bugs**

- App crashes on launch
- Zones not starting as scheduled
- Incorrect flow rate and water usage data

**Requested features**

- Ability to pause/resume programs
- Customizable watering schedules
- Improved reporting and historical data
- Easier manual zone control


## Frequently asked questions

### Is Airthings free?

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

### Is Hydrawise free?

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

### Which has better reviews, Airthings or Hydrawise?

Hydrawise is rated higher. Airthings averages 4.4 out of 5 from 3K ratings, while Hydrawise averages 4.7 from 66K ratings.

### Do Airthings or Hydrawise have ads?

Neither Airthings nor Hydrawise shows ads.

### Which is updated more often, Airthings or Hydrawise?

Airthings ships an update fortnightly, and Hydrawise every 3 weeks. Most recently, Airthings was updated on October 22, 2026 and Hydrawise on October 23, 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.*