Most fitness apps begin by asking you to do more: start a timer, choose an activity, remember another streak, fill in another blank. Base begins somewhere quieter. Your watch already noticed the walk, ride, run, or hike. We simply help you see what those recorded workouts added up to.
Why zone 2 in the first place?
Andy Galpin’s conversations with Andrew Huberman helped spark Base. The question that stayed with us was bigger than a workout: what physical capacity do we want to carry into the rest of our lives? His discussion of lifelong endurance athletes made the long view feel tangible.
Zone 2 became our focus because we wanted to make steady aerobic training easier to keep in view. Research on low-intensity training supports its value for aerobic fitness; the broader endurance evidence gives us more reasons to care about muscle energy and healthy aging. That does not make one zone the whole answer. Strength and other activity still matter.
Explore Galpin’s cited studies and the science behind Base’s focus. This is our inspiration, not an endorsement by Galpin or Huberman Lab.
We wanted the habit—not another chore.
We want tracking a cardio routine to feel simpler. A workout gets recorded in one place, heart rate lives somewhere else, and the useful question—how is my week going?—gets buried beneath charts and daily scores.
Base is our answer. It reads heart rate and recorded workouts from Apple Health, finds supported minutes inside your configured zone 2 range, and gathers them into one weekly view. Keep recording with the tools you already use, or start a new Base workout from Apple Watch or the paired iPhone. Apple Watch records that session; the phone can initiate and mirror it. There is no manual logging ritual to maintain.
See how Apple Watch tracking fits together, including native Apple zones, Base's optional live workout and synced weekly views.
Base reads the week you already had.
A week is kinder than seven verdicts.
Daily perfection is a brittle way to build a long-term habit. Real weeks contain weather, travel, family, tired legs, and rest. Base keeps the goal at the end of the week instead of turning every evening into a pass-or-fail moment.
Your weekly goal combines qualifying recorded workouts with verified everyday activity. Available heart-rate evidence, supporting Apple Exercise Time and your counting settings determine which outside-workout activity qualifies. Base shows what contributed without pretending every active minute is a zone 2 minute.
The receipt matters as much as the total.
A number without a source is hard to trust. Base pairs the weekly wave with a receipt showing the activities that contributed. Cycling, walking, running, and hiking can all add to the same base. Everyday activity stays clearly labeled. When a day is empty, the space stays empty.
That same week can travel to Apple Watch, Lock Screen, and Home Screen surfaces, so checking progress does not require opening another app. The goal is a useful glance—not another dashboard asking for attention.
Your heart data stays with you.
Base requests only the Apple Health access its features need. Health calculations happen on your devices. If you explicitly start a workout in Base on Apple Watch, Base saves that workout to Apple Health. We do not upload your heart-rate history, synthesize other Health samples, create an advertising profile, or require an account inside the app.
Now on the App Store.
Base is on the App Store for iPhone and Apple Watch.
