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DrawDock - Annotate live Windows apps from your Android tablet

I wanted to circle and sketch on slides and browser pages while presenting from a Windows PC, using an Android tablet and pen instead of a touchscreen laptop or a drawing tablet. So I built DrawDock. How it works: the tablet mirrors your PC screen. You draw on the tablet, and the marks show up over the live app on the PC monitor or projector too. Nothing gets imported or converted. It draws on top of whatever is already open. Switch to pointer mode and the pen clicks and drags in the app in

五维评分

付费意愿
30
需求真实度
45
个人可落地
78
竞争空间
45
新鲜度
72

AI 分析

痛点:在Windows电脑上做演示或共享屏幕时,缺少一种轻量方案,能用Android平板加手写笔直接在实时运行的应用画面上圈画批注,而不必买触屏笔记本或数位板。

目标用户:需要频繁演示或线上教学的讲师、教师、培训师和销售,他们手上有Android平板和主动式手写笔,但主力机是Windows PC。

证据:I wanted to circle and sketch on slides and browser pages while presenting from a Windows PC, using an Android tablet and pen instead of a touchscreen laptop or a drawing tablet. / What I'd really like to know: if you present or screen share, what would stop you from using something like this?

变现:开源核心免费,另做付费Pro版:压感支持、批注保存与导出、多显示器与多页白板、教室/团队批量授权(按席位年费)或一次性买断license。

MVP:两周内:Windows端做一个透明置顶批注层,配有全局快捷键切换;Android端通过局域网低延迟镜像PC画面,并提供画笔、荧光笔、激光笔和撤销功能;支持将批注导出PNG;不做账号和云同步,先验证演示者是否愿意为“保存批注、压感、稳定连接”付费。

竞品:Epic Pen、ZoomIt (Sysinternals)、Pointofix、Microsoft Whiteboard、Xournal++、spacedesk、Deskreen、Samsung DeX

摘要:作者用Rust写Windows端、Kotlin写Android端,做了MIT开源的DrawDock:平板镜像PC屏幕,手写笔的圈画实时叠加在PC正在运行的应用上,支持局域网/USB连接,无需账号和云。目前仅支持Windows 11和Android 11以上,需要主动式手写笔,USB模式要开USB调试,尚无压感和保存功能,平板断开后批注即清空。帖子只是在征求反馈,没有出现任何付费意愿或收入数据,但演讲/教学场景的批注需求真实存在,且已有Epic Pen等付费同类产品。