Zonewise: Heart Rate Zones

Zonewise is a simple heart rate zone trainer for iPhone and Apple Watch, built on watchOS 27's new custom workout zone configuration — so your zones, not a generic default, drive every workout you record. SET UP YOUR ZONES ONCE Enter your max heart rate (or get an honest, clearly-labeled age-based estimate) and an optional resting heart rate, choose % of Max HR or the Heart-Rate-Reserve (Karvonen) method, and Zonewise computes your 5 training zones — with Zone 2 highlighted, because that's the one most people are actually trying to build. LIVE ZONE FEEDBACK ON YOUR WATCH Start a walk, run, or ride right from your wrist. See your current heart rate and zone in real time, color-coded blue through red, with a gentle haptic tap when you drift out of your target zone — so you can hold Zone 2 without staring at a screen. YOUR WEEK, AT A GLANCE Back on iPhone, see exactly how many minutes you spent in each zone this week, your Zone 2 minutes against an editable weekly goal (150 minutes by default), and a simple bar chart of the whole week. ONE-TIME PURCHASE Zonewise is $2.99, once. No subscription, no in-app purchases, no ads. PRIVACY, BY DESIGN Your health data stays in Apple Health on your devices. There are no accounts, no servers, and no analytics of any kind — Zonewise simply has nowhere to send your data. Zonewise shows training zones and estimates based on the numbers you enter. It is not a medical device and does not diagnose, treat, or prevent any condition. Talk to your doctor before starting a new exercise program. Requires iOS 27 and, for the workout features, an Apple Watch on watchOS 27. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ FREE TO TRY Live zones on Apple Watch, zone setup and this week's summary are free. Zonewise Pro — an optional one-time purchase ($2.99, once — never a subscription) — adds previous-week history and a weekly goal. No ads, ever.