# ECHO Water vs kangkang

The clearest difference is in-app purchases: ECHO Water at none against kangkang's 3. kangkang's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. kangkang sells 3 one-off in-app purchases. ECHO Water asks for nothing beyond the download.

## The numbers

| Metric | ECHO Water | kangkang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (52 ratings)](https://appshunter.io/ios/app/echo-water/id6739596759/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 20.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 49 MB | 41 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Echo Water](https://appshunter.io/developer/1786253277) | [Huafei Zhang](https://appshunter.io/developer/1819887095) |

## What reviewers say

### 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


### kangkang

[App page](https://appshunter.io/ios/app/kangkang/id6747110543)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Interpretation Credit | $0.99 | one-time |
| 10+1 Interpretation Credits | $9.99 | one-time |
| 100+20 Interpretation Credits | $99.99 | one-time |


## Frequently asked questions

### Is ECHO Water free?

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

### Is kangkang free?

kangkang is free to download, with in-app purchases available.

### Do ECHO Water or kangkang have ads?

Neither ECHO Water nor kangkang shows ads.

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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.*