# Letianpai vs Dudu交互

The clearest difference is update cadence: Letianpai at every 3 weeks against Dudu交互's every 3 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.

Letianpai ships an update every 3 weeks, Dudu交互 every 3 months. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Letianpai | Dudu交互 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/letianpai/id6502999694/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 76 MB | 24 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [北京人和家科技有限公司](https://appshunter.io/developer/1698843685) | [Chengdu Energy magic Cube Technology Co., Ltd.](https://appshunter.io/developer/1716669984) |

## What reviewers say

### Letianpai

[App page](https://appshunter.io/ios/app/letianpai/id6502999694)

Control robots and integrate various sensors with this utility application. It allows for advanced customization and interaction with robotic hardware.

**Highlights:** Robot control, Sensor integration, Hardware interaction, Customization options

**Features:** macOS Compatibility

**In-app purchases:** none


### Dudu交互

[App page](https://appshunter.io/ios/app/dudu/id6746141274)

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

**In-app purchases:** none


## Frequently asked questions

### Is Letianpai free?

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

### Is Dudu交互 free?

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

### Do Letianpai or Dudu交互 have ads?

Neither Letianpai nor Dudu交互 shows ads.

### Which is updated more often, Letianpai or Dudu交互?

Letianpai ships an update every 3 weeks, and Dudu交互 every 3 months. Most recently, Letianpai was updated on October 30, 2026 and Dudu交互 on November 8, 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.*