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Most users of my free workout app quit in week one, so we gave it 10 AI coaches (launching today)

Hi r/SideProject . I'm the founder of Cubex Fitness, and today we're launching version 1.30. The problem: the app already had 250+ workout programs, live heart rate, watch apps and 23 languages, all free with no ads. About 1,300 people installed it. But most opened it, looked at the programs, and never came back. A plan alone doesn't keep you going. What we built: ten AI coaches with their own personalities and voices. You answer four quick questions, the coach builds y

五维评分

付费意愿
62
需求真实度
58
个人可落地
78
竞争空间
33
新鲜度
62

AI 分析

痛点:健身 App 的通用训练计划无法让用户坚持下去,多数人在第一周就流失;用户真正需要的是能对话、能陪伴、能实时调整的“教练”,而不是又一份计划表。

目标用户:健身新手/居家训练者(缺动力、需要陪伴与督促);以及同样卡在留存率上的中小健身 App 开发者

证据:About 1,300 people installed it. But most opened it, looked at the programs, and never came back. A plan alone doesn't keep you going. / Pricing: every workout feature stays free. The AI coach has a free tier; Premium is $12.99/month or $69/year, with up to 21 days free to try (no card). / Tap-through workout logging wasn't enough. People wanted someone to talk to.

变现:AI 教练订阅制(对标 $12.99/月、$69/年,含 3–21 天免卡试用);进阶可做白标 AI 教练 SDK/API 卖给其他健身 App,按 MAU 或调用量收费。

MVP:2 周版:选一个极窄场景(如增肌哑铃居家训练),用 LLM + 端侧语音做一个对话式教练——4 个引导问题生成计划、聊天中记组数(“8 at 80”)、休息计时、动作替换、按住说话语音答疑;训练数据本地存储,免费 7 天试用后 $9.9/月,先只做单平台(iOS)验证次周留存。

竞品:Fitbod、Freeletics、Future、Whoop Coach、Hevy / Strong(AI 功能)、通用 ChatGPT 健身教练 prompt

摘要:Cubex Fitness 创始人称其免费健身 App 已有 250+ 训练计划、23 种语言、约 1300 次安装,但多数用户打开看一眼计划后就再没回来,于是上线 1.30 版推出 10 个带人格与语音的 AI 教练,可在聊天中生成计划、记录组数、控制休息计时并语音答疑。定价为训练功能全免费、AI 教练免费额度 + Premium $12.99/月或 $69/年(最长 21 天免卡试用)。信号价值在于“第一周留存崩塌”这一真实数据和明确的订阅定价,但尚无付费转化或收入数字,且 AI 健身教练赛道已相当拥挤。