# oa vs 워터 Water

The clearest difference is rating: 워터 Water at 4.0 against oa's 1.5. 워터 Water also leads on review sentiment (64% vs 29%) and update cadence (every 2 weeks vs every 13 months). oa's advantage is iOS requirement (13.0 vs 17.2). On price, ratings volume, 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.

워터 Water holds the better App Store score, 4.0 against 1.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 29% of oa's written reviews are positive against 64% of 워터 Water's.

oa ships an update every 13 months, 워터 Water every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | oa | 워터 Water |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (2 ratings)](https://appshunter.io/ios/app/oa-world/id1529557073/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/water/id1633980849/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 28.6% of reviews | **64.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 191 MB | 96 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [OA Co.,Ltd](https://appshunter.io/developer/1529557075) | [브라이트에너지파트너스(주)](https://appshunter.io/developer/1633980851) |

## What reviewers say

### oa

[App page](https://appshunter.io/ios/app/oa-world/id1529557073)

Control and manage a range of smart home appliances, including speakers and personal care devices. This application allows for seamless integration and operation of various smart products from the same ecosystem.

**Highlights:** Smart home appliance management, Control speakers, Manage personal care devices, Integration of VOAR smart products, Operation of small appliances

**Features:** Vision Pro support

**In-app purchases:** none


### 워터 Water

[App page](https://appshunter.io/ios/app/water/id1633980849)

Easily find and use fast EV charging stations on your route. The app simplifies the entire process, from locating chargers to completing payments, ensuring a convenient charging experience for electric vehicle owners.

**Highlights:** Find highway and urban fast charging stations, 350kW ultra-fast charging, Automatic charging start after initial setup, Route-based charging station search, Real-time charging status monitoring, Supports Tesla with DC combo adapter, In-app payment without membership card

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is oa free?

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

### Is 워터 Water free?

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

### Which has better reviews, oa or 워터 Water?

워터 Water is rated higher. oa averages 1.5 out of 5 from 2 ratings, while 워터 Water averages 4.0 from 1 ratings.

### Do oa or 워터 Water have ads?

Neither oa nor 워터 Water shows ads.

### Which is updated more often, oa or 워터 Water?

oa ships an update every 13 months, and 워터 Water every 2 weeks. Most recently, oa was updated on October 24, 2026 and 워터 Water on October 25, 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.*