RunZone / Guides

Running guides and free tools

By the RunZone team · Updated October 2026

Free calculators and plain-English guides to Zone 2 and smarter running.

Train in Zone 2 with a coach in your ear

RunZone builds your plan around Zone 2, coaches you live with voice cues, and shows your pace getting faster at the same heart rate. iPhone, works with Apple Watch or just your phone.

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