展示HN：我开发了一款iOS应用，将保存的锻炼视频转化为结构化的训练计划。
我开发了FitSaver——一款iOS应用，能够导入健身视频并将其转换为可以实际跟随的结构化训练计划。
这款应用并不是为了与健身教练或人工智能教练应用竞争，而是解决一个更简单的问题：人们保存了健身视频，但很少将其转化为可用的计划。
自1月初上线以来，我学到了一些有趣的事情：
大多数付费用户年龄在35到55岁之间，而不是20多岁。
最大的痛点并不是发现健身视频，而是组织和跟随这些视频。
用户将其形容为“健身视频编译器”，虽然这不是我最初使用的描述，但结果证明非常准确。
几条评论提到，在健身房中滑动屏幕才是真正的障碍。
以下是一些用户的真实反馈：
“其他应用只是提供固定的训练计划，无法像我希望的那样进行自定义——这款应用提供了这种自定义功能。”
“我经常在Instagram上滑动，保存健身想法非常麻烦。这款应用非常有帮助。”
“在繁忙的健身房中滑动社交媒体或笔记是最糟糕的。这解决了这个问题。”
目前，这款应用主要依赖搜索驱动（App Store搜索占下载量的约60%），因此我更专注于产品和用户留存，而不是付费营销。
我希望能得到以下方面的反馈：
这个问题在健身以外的领域是否也有共鸣
将保存的内容组织成结构化系统是否是一个更广泛的趋势
在这个细分市场中你会接下来构建什么
欢迎提出技术或产品方面的问题。
查看原文
I built FitSaver — an iOS app that imports workout videos and converts them into structured routines you can actually follow.<p>It’s not trying to compete with trainers or AI coaching apps. It solves a simpler problem: people save workouts, but rarely turn them into usable plans.<p>Some interesting things I’ve learned since launching in early January:
Most paying users are 35–55, not 20-somethings.
The biggest pain point isn’t discovering workouts — it’s organizing and following them.
Users describe it as a “workout video compiler,” which wasn’t language I initially used but turned out to be accurate.
Several reviews mention that scrolling at the gym is the real friction.<p>A few actual user quotes:<p>“Other apps just have set workouts that aren’t as customizable as I’d like — this app provides that customization.”<p>“I scroll Instagram all the time and saving workout ideas is a mess. This was super helpful.”<p>“There’s nothing worse than scrolling social media or notes in a busy gym. This solves that problem.”<p>The app is currently search-driven (App Store search is ~60% of downloads), so I’m mostly focused on product and retention rather than paid marketing.<p>Would love feedback on:
Whether this problem resonates outside fitness
If organizing saved content into structured systems is a broader pattern
What you’d build next in this niche<p>Happy to answer technical or product questions.