Hey everyone! I'm Heinrich, a personal trainer and longevity coach based in Berlin, originally from South Africa. Ex-bodybuilder and currently training for an Olympic-distance triathlon and cycling Gran Fondos, and ofc doing some of hypertrophy and strength training (gotta look the part as a personal trainer!), also managing some frustrating injuries and cartilage degeneration in my knees. I'm building AgeShift, an AI-first training app that adapts workouts based on your goals, fitness, recovery, injury history and available time. Why I started building it: I got frustrated using apps like Runna and TriDot. Same with Hevy. They're great at creating training plans, but I found they didn't really understand my injuries and hybrid training goals. If my knee flared up, the plan didn't meaningfully adapt. I was constantly having to make those decisions myself. I was equally frustrated with Trainerize for managing my clients. They were slow to adopt AI, and even when they did, it wasn't particularly useful. I'm also surprised by how limited the AI assistants are in major apps like Oura and Strava. They're clearly not AI-first, and it shows. Oura's AI can't even answer a basic question like "What's my highest HRV ever?" I wanted something that thinks more like a good personal trainer. Something that understands your history, knows when to push and when to back off, and adapts as life happens. For my clients, this means I can adjust their programs on the fly. No more opening my laptop, navigating a drag-and-drop workout builder and clicking through endless menus. I can make changes in seconds, even in the elevator on my way to the gym. I'm building the entire app myself using AI, which has been an incredible learning experience. My bigger mission is to help 11,000 people gain an extra year of healthy life through fitness. Excited to connect with other builders, exchange ideas and learn what everyone is working on!