# Kassray vs KZJ

The clearest difference is iOS requirement: Kassray at 12.0 against KZJ's 15.1. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kassray | KZJ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/kassray/id6503038161/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 29 MB | 70 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [宇成 邓](https://appshunter.io/developer/1747837700) | [Zhongshan Kangzhijie Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1798975427) |

## What reviewers say

### Kassray

[App page](https://appshunter.io/ios/app/kassray/id6503038161)

This application allows users to control aquarium lighting. It provides functionality for managing light settings and schedules for aquatic environments.

**Highlights:** Aquarium lighting control, Light setting management, Schedule management, Aquatic environment lighting

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

**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 Kassray free?

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

### Is KZJ free?

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

### Do Kassray or KZJ have ads?

Neither Kassray nor KZJ shows ads.

### Which is updated more often, Kassray or KZJ?

Kassray ships an update every 2 months, and KZJ every 2 months. Most recently, Kassray was updated on October 13, 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.*