# Lettin 4.0

> Lettin 4.0 (iPhone/iPad app by Chengdu LIGHT&EFFECTS Co.,Ltd..)

- Source: https://appshunter.io/ios/app/lettin-40/id1552601141 (this page in markdown: same URL + `.md`)
- Developer: [Chengdu LIGHT&EFFECTS Co.,Ltd.](https://appshunter.io/developer/965099692)
- Category: Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 116 MB
- Languages: English, Chinese
- Released: 2021-08-25
- Data updated: 2026-03-26
- User reviews in markdown: https://appshunter.io/ios/app/lettin-40/id1552601141/reviews.md

## What is Lettin 4.0?

Lettin App 4.0 是一款以简驭繁的零代码工具，为光场设计带来更多可能与便利。进一步拓展了设计和管理维度，在 3.0 的基础上提升了氛围体验。
通过 Lettin App 4.0，您可以：
- 轻松设计丰富灵活的场景；
- 分级管理调控一个地点、一间房、一个区域到一个光源；
- 基于不同空间的生活逻辑，将多种条件与执行的动作组合，设计自动化氛围体验；
- 利用单个或多个传感器组合，设计娱乐、人性化、贴心实用，的 AUI （环境交互）体验；
- 添加管理成员，方便多人共享光场智能化空间。

Lettin App 4.0 is a code-free, versatile, and easy-to-use design tool that brings more possibilities and convenience for Light Field design. It provides not only advanced ambiance experiences but also expanded dimensions of design and management.
With Lettin App 4.0, you can:
· Easily design a rich and flexible scene.
· Manage a building, an area, and one of the lights.
· Design automatic ambiance experiences use Workflow that combined conditions and actions from the life-logic of different living places.
· Design entertainment, humanized, and intimate AUI (Ambiance User Interaction) experiences with single or multiple sensors.
- Add management members to assign people to execute scene decisions under certain conditions.


## Version history (last 5 releases)

### 4.0.26 — 2023-10-09

1.已知bug修复
2.首页显示优化

### 4.0.25 — 2023-10-08

1.系统版本适配
2.界面优化

### 4.0.24 — 2023-09-22

1.iOS系统适配
2.首页功能优化

### 4.0.23 — 2023-08-14

1.新增智能场景生成功能
2.已知bug修复

### 4.0.22 — 2023-07-28

1.新增语音智能控制
2.已知bug修复

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## More apps by Chengdu LIGHT&EFFECTS Co.,Ltd.

- [Lettin](https://appshunter.io/ios/app/lettin/id1026789303)
- [Lettin: Smart Lighting](https://appshunter.io/ios/app/lettin/id1304791276)
- [Orico](https://appshunter.io/ios/app/orico/id1494845410)

All apps by Chengdu LIGHT&EFFECTS Co.,Ltd.: https://appshunter.io/developer/965099692

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-03-26.*