# 1O1O vs 水務易 eWater

The clearest difference is iOS requirement: 1O1O at 13.0 against 水務易 eWater's 15.5. 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.

1O1O ships an update every 3 weeks, 水務易 eWater monthly. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 1O1O | 水務易 eWater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/1o1o/id433375584/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 179 MB | 87 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CSL Mobile Limited](https://appshunter.io/developer/340690342) | [Water Supplies Department, HKSARG](https://appshunter.io/developer/790111274) |

## What reviewers say

### 1O1O

[App page](https://appshunter.io/ios/app/1o1o/id433375584)

Manage your mobile service plan, monitor usage, and access exclusive offers. Activate 5G roaming, explore new devices and plans, and enjoy customer privileges. Access 5G services and applications for various entertainment and utility needs.

**Highlights:** Manage mobile service plan, Monitor data and voice usage, Activate 5G roaming, Access limited-period offers, Browse mobile models and plans, Check 5G coverage map

**In-app purchases:** none


### 水務易 eWater

[App page](https://appshunter.io/ios/app/ewater/id6449998378)

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

**In-app purchases:** none


## Frequently asked questions

### Is 1O1O free?

1O1O is free to download, with no in-app purchases.

### Is 水務易 eWater free?

水務易 eWater is free to download, with no in-app purchases.

### Do 1O1O or 水務易 eWater have ads?

Neither 1O1O nor 水務易 eWater shows ads.

### Which is updated more often, 1O1O or 水務易 eWater?

1O1O ships an update every 3 weeks, and 水務易 eWater monthly. Most recently, 1O1O was updated on October 23, 2026 and 水務易 eWater on October 15, 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.*