# 水质多参数APP vs HoloBall

The clearest difference is update cadence: HoloBall at every 3 weeks against 水质多参数APP's every 7 months. HoloBall also leads on iOS requirement (9.0 vs 12.0). 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.

水质多参数APP ships an update every 7 months, HoloBall every 3 weeks. The most recent releases landed on July 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 水质多参数APP | HoloBall |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 29 MB | 20 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen Standards Scientific Instrument Co.,Ltd.](https://appshunter.io/developer/1194436536) | [永泉 官](https://appshunter.io/developer/1615724563) |

## What reviewers say

### 水质多参数APP

[App page](https://appshunter.io/ios/app/app/id1450483863)

**Features:** macOS Compatibility

**In-app purchases:** none


### HoloBall

[App page](https://appshunter.io/ios/app/holoball/id1580888156)

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

**In-app purchases:** none


## Frequently asked questions

### Is 水质多参数APP free?

水质多参数APP is free to download, with no in-app purchases.

### Is HoloBall free?

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

### Do 水质多参数APP or HoloBall have ads?

Neither 水质多参数APP nor HoloBall shows ads.

### Which is updated more often, 水质多参数APP or HoloBall?

水质多参数APP ships an update every 7 months, and HoloBall every 3 weeks. Most recently, 水质多参数APP was updated on July 1, 2026 and HoloBall on September 18, 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.*