70 BPM app icon: a red 3D heart crossed by a white ECG pulse line on black

Health & Fitness · KIDA Studios

Heart Rate Monitor: See Your BPM Next to Your Calendar

70 BPM is a heart rate monitor app for iOS that lines up your Apple Health BPM with your calendar, so you can see which meetings and events your heart actually reacted to.

iPhone★★★★★ 5 on the App Store · 4 ratings

How it works

Three steps from install to results with 70 BPM.

  1. 1

    Connect Health

    Grant Apple Health access so 70 BPM can read heart-rate samples from Apple Watch and other sources.

  2. 2

    Open your day

    Scrub the day chart, zoom into meetings and focus blocks, and see low, normal, and high zones in context.

  3. 3

    Act on patterns

    Spot which parts of your schedule stress or calm you—and plan recovery with calendar-aware insights.

Does 70 BPM share my health data?

What the app asks for, what stays on your iPhone, and how to check that for yourself.

A heart rate app with no cloud upload

70 BPM’s App Store listing states it directly: on-device by design — processing stays on your iPhone, and 70 BPM doesn’t upload your heart rate to a cloud. There is no web dashboard to sign into and no companion site showing your numbers, because the chart is drawn on the device that already holds the data.

That is a design decision with a real cost attached. Cross-device sync, a browser view of your history and server-side backup are the things you give up when nothing is uploaded. Apps that offer those features need a server to offer them. 70 BPM does not offer them, which is why it does not need one.

On-device processing: how it works

Heart-rate samples on an iPhone already live in Apple Health, stored locally and included in your encrypted device backup. 70 BPM reads those existing samples and matches them against events it reads from your calendar. Both sources are already on the phone, so the overlay is assembled there too — the work is a local query and a chart, not an upload and a response.

Apple’s rules add a floor beneath this: apps may not use HealthKit data for advertising or sell it to data brokers, and any app touching HealthKit must publish a privacy policy. That floor applies to every health app on the App Store, so it is worth treating as a baseline rather than a distinguishing feature.

What 70 BPM asks for, and why

Health permissions on iOS are granted per data type and can be withdrawn at any time in Settings › Privacy & Security › Health, without uninstalling anything.

PermissionAccessWhat it is for
Apple Health — heart rateReadThe samples the day chart is drawn from.
Apple Health — workoutsWriteOnly when you use Focused Tracking, which starts an iPhone workout session so samples are recorded more densely during an event.
CalendarFull accessReading the events that heart-rate samples are lined up against. You choose which calendars count — holiday and subscribed calendars start off.

70 BPM writes to Apple Health as well as reading from it. That write is the Focused Tracking workout session and nothing else, and it stays inside Health on your device.

How to check any health app yourself

You do not have to take a privacy claim on trust. Put the phone in airplane mode and use the app normally: anything that still works cannot be reaching a server. Then read the App Store listing’s own privacy card, which Apple requires the developer to fill in, and compare it against what the app appears to do offline. The full method is in Heart Rate App That Does Not Upload to the Cloud.

KIDA Studios privacy policy ›

Guides

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FAQ

Answers people search for before they download.

Does 70 BPM upload my heart rate to the cloud?

Its App Store listing states that 70 BPM is on-device by design, that processing stays on your iPhone, and that it does not upload your heart rate to a cloud. There is no web dashboard and no account to sign into, so there is nothing on a server to sign into. You can verify the behaviour yourself by using the app in airplane mode.

More on privacy ›

What permissions does 70 BPM ask for?

Three. It reads heart rate from Apple Health, writes a workout session to Apple Health only when you use Focused Tracking, and reads your calendar so events can be lined up against samples. You choose which calendars count, and holiday and subscribed calendars start off. Health permissions can be withdrawn at any time in Settings.

More on privacy ›

What is 70 BPM?

70 BPM is a heart rate monitor app for iOS by KIDA Studios that overlays your heart-rate data from Apple Health onto your calendar so you can see BPM in the context of real meetings and events.

More guides ›

Does 70 BPM need an Apple Watch?

Apple Watch is the most common source for continuous heart-rate samples, but 70 BPM reads from Apple Health—so any devices that write heart rate to Health can contribute.

More guides ›

Is 70 BPM free?

Yes. 70 BPM is free to download on the App Store. Check the listing for the latest details.

More guides ›

What platforms does 70 BPM support?

70 BPM runs on iPhone, and needs iOS 18 or later. It does not have an Apple Watch app — heart-rate data typically comes from an Apple Watch, but it reaches 70 BPM through Apple Health on your device.

More guides ›

Why pair heart rate with calendar?

A single BPM number lacks context. Seeing heart rate next to meetings and focus blocks shows how your schedule actually affects you.

More guides ›

Get 70 BPM today

Heart Rate Meets Calendar — built by KIDA Studios.