# 它乐 vs 水族系统V2

它乐 and 水族系统V2 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

它乐 ships an update weekly, 水族系统V2 every 8 days. The most recent releases landed on September 11, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | 它乐 | 水族系统V2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (4 ratings)](https://appshunter.io/ios/app/v2/id6642693010/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | — | Free |
| Size | 34 MB | 58 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen excellent Pet products Co., Ltd.](https://appshunter.io/developer/1681513325) | [大伦 王](https://appshunter.io/developer/1452981396) |

## What reviewers say

### 它乐

[App page](https://appshunter.io/ios/app/id6474181183)

**Features:** macOS Compatibility

**In-app purchases:** none


### 水族系统V2

[App page](https://appshunter.io/ios/app/v2/id6642693010)

Manage your aquarium equipment, including lights, filters, and pumps, with this system designed for devices produced after 2022. It offers control over various essential aquarium components.

**Highlights:** Aquarium light control, Filter management, Water pump operation, Air pump control, Device compatibility (post-2022)

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

**In-app purchases:** none


## Frequently asked questions

### Is 它乐 free?

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

### Is 水族系统V2 free?

水族系统V2 is free to download, with no in-app purchases.

### Do 它乐 or 水族系统V2 have ads?

Neither 它乐 nor 水族系统V2 shows ads.

### Which is updated more often, 它乐 or 水族系统V2?

它乐 ships an update weekly, and 水族系统V2 every 8 days. Most recently, 它乐 was updated on September 11, 2026 and 水族系统V2 on August 14, 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.*