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I got tired of workout apps holding my training log hostage, so I built one that exports everything as CSV (iPhone, Apple Watch, Mac)

In May I got serious about lifting, and I started the way everyone does: a Google Sheet. A tab per exercise, formulas for volume, the lot. Brilliant at the kitchen table, useless in the gym – standing between sets, one hand still on the bar, trying to remember whether last Tuesday was 42.5 or 45. So I looked at the apps. Two things put me off. Most of them take three taps and two screens to write down one set, while the only number I actually need – what I lifted last time – i

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AI 分析

痛点：健身训练记录 App 普遍强制订阅、锁死用户数据且记录一组的操作步骤繁琐，而用户最需要的『上次重量/次数』反而藏得很深，缺少可导出、可自定、单手快速记录的轻量工具。

目标用户：以力量训练/举重为主的健身爱好者，尤其是反感订阅制、重视数据所有权与导出的 iPhone/Apple Watch 用户。

证据：Most of them take three taps and two screens to write down one set, while the only number I actually need – what I lifted last time – is buried somewhere. And they want a subscription, forever, for what is essentially a notebook.

变现：一次性买断（$5–15）或低价年费，主打『终身可用 + 数据全导出（CSV/JSON）+ Apple Health 同步』；Pro 版解锁自定义训练计划模板、多设备同步与高级图表。

MVP：2 周内只做核心循环：1–2 次点击记录一组 → 自动带入上次重量/次数/RPE → 结束自动启动休息计时 → 本地 SQLite 存储并一键导出 CSV/JSON；可选 Apple Watch 独立跑一场训练。不做社交、课程库和大而全的动作百科。

竞品：Strong、Hevy、Jefit、Fitbod、GymBro 3000（本帖作者自己的产品）

摘要：作者因不满健身 App 订阅制与数据锁定，自建了 GymBro 3000（iPhone/Apple Watch/Mac，112 个动作、支持 CSV 导出），几天前上架 App Store。帖子清晰验证了『快速记录一组 + 自动带入上次数据 + 数据可导出』这一痛点，但全文没有真实收入数据或明确的付费意愿原话，且健身记录赛道竞品饱和。