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I built an Android app where a little knight watches you doomscroll and slowly falls apart

I kept opening Instagram "for a second" and losing an hour, and blockers never worked for me because I'd just turn them off. So I built Doom Saver. When you open an app you've chosen, a small hooded knight called Grim appears with a running timer and reminds you of better things to while doomscrolling. It uses Usage Access instead of Accessibility, so it can't read your screen, and stats stay on your phone. Free on Android. It launched on Product Hunt today. I'd really va

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痛点：用户想刷社交媒体但现有屏蔽工具可被轻易关闭，导致 doomscroll 失控，需要更温和、具象化或不易绕过的提醒机制。

目标用户：容易无意识刷 Instagram/TikTok 等社交媒体的 Android 用户，尤其是尝试过屏幕时间或屏蔽工具但失败的人。

证据：I kept opening Instagram "for a second" and losing an hour, and blockers never worked for me because I'd just turn them off. ... Free on Android.

变现：Freemium 订阅：免费基础角色提醒和计时，付费解锁高级角色/皮肤、详细周报、严格模式、白名单和跨设备同步；也可一次性买断。

MVP：用 Android Usage Access 获取前台应用和时长，叠加悬浮窗显示小骑士与计时器，用户选择要监控的应用；2周内可完成基础版，不读取屏幕内容。

竞品：One Sec、Opal、ScreenZen、Forest、Android Digital Wellbeing、Brick

摘要：独立开发者因自己刷 Instagram 失控且屏蔽工具可被关闭，做了 Android 免费应用 Doom Saver：打开目标应用会出现小骑士 Grim 计时提醒，并随 doomscroll 逐渐“崩坏”，使用 Usage Access 且数据留在本地。帖子只有上线和求反馈，没有付费/收入数据，但数字健康赛道已有付费竞品，可尝试 freemium。