# LED Message Board vs TRN Audio

The clearest difference is ads: TRN Audio at none against LED Message Board's shown. TRN Audio also leads on update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 15.0). On price, 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.

LED Message Board ships an update every 3 weeks, TRN Audio every 4 days. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | LED Message Board | TRN Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/led-message-board/id1618602482/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 12 MB | 34 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [taishin miyamoto](https://appshunter.io/developer/1570395608) | [娟 伍](https://appshunter.io/developer/6793145741) |

## What reviewers say

### LED Message Board

[App page](https://appshunter.io/ios/app/led-message-board/id1618602482)

Transform your phone into a vibrant LED display. Type any message and present it full-screen in a clear, electronic signboard style. Ideal for events, cheering, or store displays, with customizable text and background colors.

**Highlights:** Full-screen LED display, Customizable text colors, Customizable background colors, Electronic signboard style, Ideal for events and displays

**Features:** macOS Compatibility

**In-app purchases:** none


### TRN Audio

[App page](https://appshunter.io/ios/app/trn-audio/id6798907124)

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

**In-app purchases:** none


## Frequently asked questions

### Is LED Message Board free?

LED Message Board is free to download, with no in-app purchases.

### Is TRN Audio free?

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

### Do LED Message Board or TRN Audio have ads?

LED Message Board shows ads; TRN Audio does not.

### Which is updated more often, LED Message Board or TRN Audio?

LED Message Board ships an update every 3 weeks, and TRN Audio every 4 days. Most recently, LED Message Board was updated on September 10, 2026 and TRN Audio on September 18, 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.*