Base: Zone 2 Cardio Tracker

Heart Rate & Weekly Goals

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

Track your zone 2 week from Apple Health: workouts and qualifying everyday activity. See what counted, follow your goal, or train live with Apple Watch. Base counts your weekly zone 2 minutes from Apple Health — across recorded workouts and qualifying everyday activity — so you can see where your week stands without adding up sessions yourself. YOUR WEEK, ALREADY COUNTED Connect Apple Health to follow your zone 2 minutes against a goal you choose. Outside a recorded workout, activity needs sufficiently frequent heart-rate readings and supporting Apple Exercise Time. Unsupported gaps do not count; Base does not credit every movement. STAY IN YOUR ZONE Start an optional workout in Base on Apple Watch for live guidance in your personalized zone. Follow your session on your wrist or its mirrored iPhone display. SEE WHAT COUNTED Explore the walks, runs, rides and qualifying everyday activity that contributed. Look back through your history and follow your consistency over time. ONE GLANCE AWAY Keep your weekly progress visible with iPhone widgets and Apple Watch complications. YOUR HEART, OVER TIME See resting heart rate and HRV trends alongside your zone 2 activity. Personal trends, not a diagnosis or a promised health outcome. PRIVATE BY DESIGN Your heart-rate readings, workout records and measured zone 2 totals are processed on your devices, not sent to our analytics services. Usage analytics and crash reporting are optional and off until you agree. No Base account required. Base needs compatible heart-rate data in Apple Health, with workout records or supporting Apple Exercise Time for qualifying activity. Live workouts require a compatible Apple Watch. Requires iOS 26 or later; the Watch app requires watchOS 26 or later. A subscription is required. Eligible subscribers can start a 14-day free trial. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in Settings, then your name, then Subscriptions. Any unused part of a free trial is forfeited when you subscribe. Current prices and terms are shown in the app. Privacy: https://basecardio.com/privacy/ Terms: https://basecardio.com/terms/

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Base now fits both screens on iPhone Duo, folded or open. On iPhone Duo: • Folded, the tabs sit in a pill under the clock and step aside on pages you open, so Back always shows. • Open, the tabs sit in a small block under the clock, Week's chart fills the room, Heart and You start below the tabs, and Earned shows badges still to win. • Week's header and goal tag hold still in a Live Activity. Sheets, the paywall and the finish screen stay clear of the clock, and Heart and History run under it. • Ember stays clear of Share, and "Keep going" is easier to read. • Setup and weekly minutes no longer overlap text. Also: • Bigger text and VoiceOver work better across Week, History, the workout screen and setup, and VoiceOver reads each tab as one item. • Smoother scrolling, and switching tabs on the iPhone Duo's outer screen is quicker. • Fixed crashes from Heart to History to Week and at the end of a walk on Apple Watch; Watch no longer shows your week empty. • Week's wave now shows each day's minutes exactly as the list does. • At the largest text size, the goal sheet opens at its heading. • Setup asks your age in one row when Apple Health has none. • Subscription prices stay in view at larger text. • Heart's days-added estimate no longer shifts with today's heart rate. • Two-line badge names line up on Earned.

The developer, Base Cardio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Base Cardio LLC
Size
96.9 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
  • iPhone
    Requires iOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.0 or later.
  • Apple Watch
    Requires watchOS 26.0 or later.
Languages
English
Age Rating
13+
In-App Purchases
Yes
  • Base Yearly $29.99
  • Base Lifetime $79.99
  • Base Monthly $3.99
Copyright
© 2026 Base Cardio LLC