Every workout app I tried was either too slow, too bloated or way too expensive. So I built an open-source alternative.

"Hacker News: Show HN"

• 12d ago

Show HN: I built an open source alternative to bloated workout apps

Most workout apps are bloated. You're between sets, sweaty, 45 seconds on your rest timer, and the app wants you to tap through menus, scroll through exercise lists, and confirm things you've already confirmed. So I built OpenTrainer. A free, open source workout tracker that remembers what you lifted last time and suggests what to do next. Accept with one tap, use the simple interface to make adjustments. Here's a few things other apps weren't doing that I wanted: Smart defaults. Pre-filled weight/reps based on your last session with progression suggestions Thoughtful AI. Generate routines based on your equipment, suggests exercise swaps mid-workout, weekly performance insights Data ownership. Full JSON export. No lock-in Privacy first. No tracking pixels, no selling your data Open source Tech stack: Next.js 16, Convex, Clerk, OpenRouter, Tailwind, shadcn It supports lifting, cardio, and mobility. Looking for feedback from people who are looking for something different. Sign up during the Alpha and keep Pro free forever. opentrainer.app Comments URL: https://news.ycombinator.com/item?id=46692873 Points: 1 # Comments: 0

I built a fitness app because I kept falling off every time uni got busy

hated how complex and unintuitive most workout apps are while being super expensive