# CAYIN Signage Assistant vs ML Control

The clearest difference is update cadence: ML Control at every 3 weeks against CAYIN Signage Assistant's every 9 months. CAYIN Signage Assistant's advantage is iOS requirement (14.0 vs 16.6). 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.

CAYIN Signage Assistant ships an update every 9 months, ML Control every 3 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CAYIN Signage Assistant | ML Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 29 MB | 63 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [CAYIN鎧應科技](https://appshunter.io/developer/1537732730) | [Meiloon](https://appshunter.io/developer/1775588519) |

## What reviewers say

### CAYIN Signage Assistant

[App page](https://appshunter.io/ios/app/cayin-signage-assistant/id6443804283)

**Features:** macOS Compatibility

**In-app purchases:** none


### ML Control

[App page](https://appshunter.io/ios/app/ml-control/id6739605186)

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

**In-app purchases:** none


## Frequently asked questions

### Is CAYIN Signage Assistant free?

CAYIN Signage Assistant is free to download, with no in-app purchases.

### Is ML Control free?

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

### Do CAYIN Signage Assistant or ML Control have ads?

Neither CAYIN Signage Assistant nor ML Control shows ads.

### Which is updated more often, CAYIN Signage Assistant or ML Control?

CAYIN Signage Assistant ships an update every 9 months, and ML Control every 3 weeks. Most recently, CAYIN Signage Assistant was updated on November 7, 2026 and ML Control 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.*