# 星卡TD vs LED Messager

The clearest difference is iOS requirement: 星卡TD at 9.0 against LED Messager's 15.6. 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.

星卡TD ships an update every 5 weeks, LED Messager every 2 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 星卡TD | LED Messager |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/td/id1514554756/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 260 MB | 1 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [THINKCAR INC](https://appshunter.io/developer/1464847379) | [朝晖 缪](https://appshunter.io/developer/1726853087) |

## What reviewers say

### 星卡TD

[App page](https://appshunter.io/ios/app/td/id1514554756)

This innovative car diagnostic tool offers professional-level performance for mechanics and DIY enthusiasts. It supports over 100 car brands with 15 special reset functions, rivaling expensive professional tools. The device connects wirelessly to the app via Bluetooth for smart diagnostics.

**Highlights:** Professional-level car diagnostics, Supports 100+ car brands, 15 special reset functions, Bluetooth connectivity, Smart diagnostic device, Suitable for repair shops and DIYers

**Features:** macOS Compatibility

**In-app purchases:** none


### LED Messager

[App page](https://appshunter.io/ios/app/led-messager/id6752929428)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 星卡TD free?

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

### Is LED Messager free?

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

### Do 星卡TD or LED Messager have ads?

Neither 星卡TD nor LED Messager shows ads.

### Which is updated more often, 星卡TD or LED Messager?

星卡TD ships an update every 5 weeks, and LED Messager every 2 months. Most recently, 星卡TD was updated on November 3, 2026 and LED Messager on October 28, 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.*