# CiTRON Tool vs HuaYi Smart Pro

The clearest difference is update cadence: CiTRON Tool at every 2 months against HuaYi Smart Pro's every 10 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.

CiTRON Tool ships an update every 2 months, HuaYi Smart Pro every 10 months. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CiTRON Tool | HuaYi Smart Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Size | 14 MB | 145 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [飞 龚](https://appshunter.io/developer/617610085) | [Zhongshan Huayi Lighting Co., Ltd.](https://appshunter.io/developer/1360552897) |

## What reviewers say

### CiTRON Tool

[App page](https://appshunter.io/ios/app/citron-tool/id1571600290)

**Features:** macOS Compatibility

**In-app purchases:** none


### HuaYi Smart Pro

[App page](https://appshunter.io/ios/app/huayi-smart-pro/id1578998752)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CiTRON Tool free?

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

### Is HuaYi Smart Pro free?

HuaYi Smart Pro is free to download, with no in-app purchases.

### Do CiTRON Tool or HuaYi Smart Pro have ads?

Neither CiTRON Tool nor HuaYi Smart Pro shows ads.

### Which is updated more often, CiTRON Tool or HuaYi Smart Pro?

CiTRON Tool ships an update every 2 months, and HuaYi Smart Pro every 10 months. Most recently, CiTRON Tool was updated on October 27, 2026 and HuaYi Smart Pro on November 4, 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.*