# AQUASMITH vs KZJ

AQUASMITH and KZJ 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AQUASMITH | KZJ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 83 MB | 70 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [深圳市老渔匠实业有限公司](https://appshunter.io/developer/1763611424) | [Zhongshan Kangzhijie Electrical Appliances Co., Ltd.](https://appshunter.io/developer/1798975427) |

## What reviewers say

### AQUASMITH

[App page](https://appshunter.io/ios/app/aquasmith/id6642702871)

**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 AQUASMITH free?

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

### Is KZJ free?

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

### Do AQUASMITH or KZJ have ads?

Neither AQUASMITH nor KZJ shows ads.

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

AQUASMITH ships an update every 2 months, and KZJ every 2 months. Most recently, AQUASMITH was updated on October 10, 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.*