Built an iPhone sprint training app. Giving away 75 free codes
About a month ago I got into the science of sprinting for fat loss. Short max-effort sprints trigger the “afterburn effect” (EPOC — excess post-exercise oxygen consumption) where your body keeps burning fat for hours after you stop.
I couldn’t find an app to actually guide sprint workouts, so I decided to build one myself. I have literally zero coding experience. I used Claude as basically my personal developer. I described what I wanted, it wrote the code, I pasted it in, tested on my phone, told it what worked/didnt over and over.
What the app does:
-Guided sprint sessions with warmup checklist, rep timers, and rest countdowns
-Vibration alerts so your not staring at your phone mid-sprint
-Tracks your speed over time (m/s) with a progress chart
-Recovery/mobility sessions with illustrated exercises
-Smart home screen that tells you whether to sprint, recover, or rest based on your week
It’s called EPOC: Sprint Science, it’s on the App Store but I have 75 promo codes to give away, first come first serve. Only thing I ask is an honest review after you try it (good or bad, I genuinely want the feedback). Even if you wouldn’t be a user, still interested in knowing thoughts on functionality.
Comment below and I’ll DM you a code. Happy to answer any questions about the build process too.