Original Summary

I'm the solo dev behind Ramp4x4. I started in May because I kept losing the thread during Norwegian 4x4 intervals: four hard 4-minute efforts with 3-minute recoveries. A generic timer told me when to switch, but I was still looking down to check the phase and heart-rate zone. What worked for me was narrowing the project to that single moment. The watch now handles phase changes with haptics and voice, shows whether I'm in the target zone, and lets me focus on the run. The classic workout is free. If you're building a side project, my advice is to solve the part you personally repeat and dread before adding a broad feature set. Then let people try the core value without hitting a paywall. I'm still early and would love honest feedback: what would you want on your wrist during a hard interval? App Store: https://apps.apple.com/app/apple-store/id6768789400?pt=128896644&ct=reddit&mt=8   submitted by   /u/OddSeaworthiness4811 [link]   [comments]

中文概览

中文标题： Ramp4x4——我为了不再看时钟而做的4x4训练应用

独立开发者因进行挪威4x4间歇训练时总要看表，开发了Ramp4x4。手表用触觉和语音提示阶段切换，显示是否处于目标心率区间，让用户专注跑步；经典训练免费。开发者建议先解决自己反复做且头疼的环节，再扩展功能，并让用户免费体验核心价值。仍在早期，希望获得反馈。

  • 情报分类：开源项目与落地
  • 分类依据：独立开发者发布自建4x4间歇训练应用，介绍功能与免费核心，属于项目落地。
  • 信息来源：Reddit · SideProject
  • 发布时间：2026/9/26 23:24:13