Hey Product Hunt! 👋 I’m Jelle, the solo dev behind Theron. As a triathlete, I was incredibly frustrated. Managing three sports is hard enough, but managing the software was becoming a nightmare. Almost every triathlon platform out there treats the Apple Watch like a second-class citizen. Plus, static PDF plans don't care if you slept 4 hours last night. So, I built Theron to scratch my own itch. It’s the first truly Apple-Native Triathlon Brain. Here is what makes Theron different from the legacy apps: ⌚️ Native Workouts: Theron pushes your daily structured workouts straight into your native Apple Workout app. No third-party watch apps needed. Just tap your wrist and go. 🧠 Bi-Directional Apple Health: It doesn’t just read your data after the fact. Theron pulls your Sleep, HRV, and Resting Heart Rate to adapt today’s plan if your body needs recovery. 🛠️ Free Tools: I also built a massive Knowledge Hub, a global Race Finder, and pace calculators that are entirely free to use without an account. I built this entirely as a side project, so I am obsessively reading every piece of feedback. I have a question for the endurance athletes here: Are you currently using an Apple Watch for your training, or did you feel forced to buy a Garmin? What is the biggest friction point in your current setup? Speaking for myself, I actually still use Apple with a Garmin bike computer. I’ll be hanging out in the comments all day to answer questions, talk about the tech stack, or just geek out over triathlon gear. Let me know what you think! 🏊‍♂️🚴‍♂️🏃‍♂️

Theron

Your Adaptive Triathlon Training Plan

Your Adaptive Triathlon Training Plan