# PuroAir vs ECHO Water

The clearest difference is review sentiment: PuroAir at 63% against ECHO Water's 21%. PuroAir also leads on rating (5.0 vs 4.6). ECHO Water's advantage is ratings volume (141 vs 4) and monetization model (free vs ad-supported). On price, update cadence, ads and in-app purchases there is nothing between them.

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

PuroAir holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ECHO Water has 141 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 63% of PuroAir's written reviews are positive against 21% of ECHO Water's.

PuroAir ships an update every 5 weeks, ECHO Water every 3 weeks. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PuroAir | ECHO Water |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/puroair/id6695761000/reviews)** | [4.6 (141 ratings)](https://appshunter.io/ios/app/echo-water/id6739596759/reviews) |
| Number of ratings | 4 | **141** |
| Positive reviews | **62.5% of reviews** | 20.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 191 MB | 49 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [PuroAir](https://appshunter.io/developer/1769235197) | [Echo Water](https://appshunter.io/developer/1786253277) |

## What reviewers say

### PuroAir

[App page](https://appshunter.io/ios/app/puroair/id6695761000)

Control and monitor your home's air quality with this app. Manage your air purifiers remotely, set schedules, and receive real-time alerts for optimal indoor air.

**Highlights:** Remote control of air purifier functions, Real-time status and alerts, Customizable scheduling, Filter replacement reminders, Multi-device management, Voice control compatibility

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

**In-app purchases:** none


### ECHO Water

[App page](https://appshunter.io/ios/app/echo-water/id6739596759)

This app provides a streamlined and dependable interface for operating your Echo Flask. It offers a simplified user experience for managing hydrogen water generation.

**Highlights:** Simplified operation, Reliable performance, Echo Flask management, Hydrogen water generation

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Sleek and compact design
- 💡 Customizable color options

**What reviewers complain about**

- 🐛 Connectivity issues with app
- 🐛 Inaccurate water tracking
- 🐛 Firmware update problems
- 🔋 Unreliable battery life

**Reported bugs**

- App unable to sync with water bottle
- Inconsistent flask counting
- Bluetooth pairing problems

**Requested features**

- Ability to manually log water intake
- Scheduling options for hydrogen water
- Improved app performance and stability


## Frequently asked questions

### Is PuroAir free?

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

### Is ECHO Water free?

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

### Which has better reviews, PuroAir or ECHO Water?

PuroAir is rated higher. PuroAir averages 5.0 out of 5 from 4 ratings, while ECHO Water averages 4.6 from 141 ratings.

### Do PuroAir or ECHO Water have ads?

Neither PuroAir nor ECHO Water shows ads.

### Which is updated more often, PuroAir or ECHO Water?

PuroAir ships an update every 5 weeks, and ECHO Water every 3 weeks. Most recently, PuroAir was updated on October 20, 2026 and ECHO Water on October 28, 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.*