I built a stupid simple app for me and my girlfriend and somehow a stranger actually paid for it

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About a month ago I built a really stupid simple app called Sticky Love. The whole idea came from my girlfriend. She would often leave sticky notes for me in the kitchen, usually something like "take out the trash", "empty the dishwasher", or sometimes just some random message. So one day I thought it would be kinda funny to make a digital version of that for us. I basically built the first version in one day with a lot of help from AI. The idea was super simple. You install the app on two phones, connect them by scanning a QR code and thats it. If person A sends a sticky note

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AI 分析

痛点：情侣间想随时看到对方留下的一条轻量便签，但现有聊天工具信息流太重，缺少常驻桌面、一对一、极简的共享便签体验。

目标用户：情侣、异地恋用户，以及喜欢桌面小组件和轻量亲密互动的年轻用户。

证据：somehow a stranger actually paid for it; I also used some MCP agents to add payments and App Store subscriptions. Monthly, yearly and a permanent one time purchase.; About a month later I randomly opened App Store Connect and saw 14 downloads.

变现：免费下载+订阅/买断：月订阅、年订阅、永久买断；后续可加情侣主题皮肤、高级小组件样式、多便签/多设备同步等付费点。

MVP：用React Native或Flutter做iOS优先版本：扫码配对、两人共享一条便签、替换式同步、桌面小组件、推送通知，接入StoreKit/Google Play订阅和永久买断。后端用Supabase/Firebase即可，2周内可上线。

竞品：Between、Couple、Locket Widget、Noteit、Widgetable

摘要：开发者用AI一天做出情侣共享便签+桌面小组件App Sticky Love，加入月/年/永久买断订阅后上架App Store，一个月后看到14次下载，并称有陌生人付费。需求真实但规模尚小，适合独立开发者低成本验证情侣轻互动工具。