zone2run - slow running

An innovative running app that enables scientific Zone 2 heart rate training—without a watch. Maintain the optimal aerobic exercise intensity with just your smartphone, no complicated wearables required, and experience a healthier, more effective run.

Why Zone 2? While most running apps focus on simple distance or pace tracking, Zone 2 is specialized in heart rate zone training grounded in science. Unlike expensive smartwatches or heart rate bands, Zone 2 lets you train at a comfortable “conversational pace,” designed to maximize fat burning and improve your base fitness—its key differentiator.

Core Features

Watch-Free Zone 2 Training: Manage your Zone 2 heart rate range using only your smartphone—no extra devices needed.

Conversational Pace Setting: Personalize your pace range where you can comfortably hold a conversation.

Smart Pace Coaching: Voice alerts to help you stay on your target pace.

Workout Tracking: Monitor your progress with Zone 2 achievement rates.

Start today—set a new standard for healthy running with Zone 2!