iOS focus timer with 5 visual timer styles, custom backgrounds, stats, and app blocking
Immerse 是 iOS 专注计时器 App：5 种可视化计时样式、可自定义背景、专注数据统计，外加 App 屏蔽功能，已上架 App Store。
作者 Nika 在 dev.to 的完整开发复盘里写道："I built most of it using Claude Code and Codex… I didn't manually edit the code myself. Instead, I described what I wanted in normal language, tested what the AI built, found problems, and kept iterating." 提示词甚至用语音输入（Wispr Flow）。文章约两天前发表，第一版发布后还在持续迭代，新增了 App 屏蔽和统计功能。