# Fish lamp vs KZJ

The clearest difference is update cadence: Fish lamp at every 4 weeks against KZJ's every 2 months. Fish lamp also leads on iOS requirement (13.0 vs 15.1). 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.

Fish lamp ships an update every 4 weeks, KZJ every 2 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fish lamp | KZJ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 67 MB | 70 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Miaoxiang intelligent Co., LTD](https://appshunter.io/developer/1436399965) | [Zhongshan Kangzhijie Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1798975427) |

## What reviewers say

### Fish lamp

[App page](https://appshunter.io/ios/app/fish-lamp/id6738646596)

**Features:** macOS Compatibility

**In-app purchases:** none


### KZJ

[App page](https://appshunter.io/ios/app/kzj/id6742648445)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fish lamp free?

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

### Is KZJ free?

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

### Do Fish lamp or KZJ have ads?

Neither Fish lamp nor KZJ shows ads.

### Which is updated more often, Fish lamp or KZJ?

Fish lamp ships an update every 4 weeks, and KZJ every 2 months. Most recently, Fish lamp was updated on October 16, 2026 and KZJ on October 24, 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.*