# Dipper水族系统 vs VOLDA

The clearest difference is update cadence: VOLDA at every 2 weeks against Dipper水族系统's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Dipper水族系统 ships an update every 2 months, VOLDA every 2 weeks. Both last shipped on October 17, 2026.

## The numbers

| Metric | Dipper水族系统 | VOLDA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 36 MB | 34 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [丽辉 王](https://appshunter.io/developer/1629156920) | [颖卓 赵](https://appshunter.io/developer/1865325974) |

## What reviewers say

### Dipper水族系统

[App page](https://appshunter.io/ios/app/dipper/id6670388006)

**In-app purchases:** none


### VOLDA

[App page](https://appshunter.io/ios/app/volda/id6758033773)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dipper水族系统 free?

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

### Is VOLDA free?

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

### Do Dipper水族系统 or VOLDA have ads?

Neither Dipper水族系统 nor VOLDA shows ads.

### Which is updated more often, Dipper水族系统 or VOLDA?

Dipper水族系统 ships an update every 2 months, and VOLDA every 2 weeks. Most recently, Dipper水族系统 was updated on October 17, 2026 and VOLDA on October 17, 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.*