Stack was born from a simple idea: running should be simple. Not simplified, but simple. There's a difference.

Too many training apps overwhelm you with metrics, badges, and noise. They confuse more data with better training. But what if you just want to run, improve, and understand your progress without the clutter?

That's Stack. A training log that focuses on what matters: your runs, your progress, your goals. Clean, focused, and built for runners who want clarity over complexity.

No gimmicks. No social features. No distractions. Just you, your training, and the insights that actually help you improve.