Instant Heart Rate: HR Monitor

The most accurate heart rate monitor. Track heart beat, bpm, stress and cardio.

Azumio Inc. · si.modula.android.instantheartrate

4.8 out of 5 (30 ratings) 10M+ downloads v6.3.5 67.8 MB Android 6.0+ PEGI 3 · Everyone

Download APK 67.8 MB All versions

Signature matches the Google Play version Details

Watch the Instant Heart Rate: HR Monitor trailer on YouTube

Instant Heart Rate: HR Monitor screenshot 1

Instant Heart Rate: HR Monitor screenshot 2

Instant Heart Rate: HR Monitor screenshot 3

Instant Heart Rate: HR Monitor screenshot 4

At a glance

Latest version: v6.3.5 (9848)
Updated: Aug 27, 2026 (1 month ago)
APK size: 67.8 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Health & Fitness (app)
Listed since: Nov 26, 2014 (at least)
Permissions: 37 (9 sensitive)
Website: azumio.com/s/instantheartrate/index.html
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Instant Heart Rate: HR Monitor is an app by Azumio Inc. in the Health & Fitness category, listed since at least November 2014. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 2.7.0, the minimum Android version rose from 4.0 to 6.0. It asks for 37 permissions, 9 of them sensitive, including precise location, camera and read contacts. It asks for the same permissions as version 6.3.4. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

Ratings

4.8out of 530 ratings

5 ★90%
4 ★3%
3 ★7%
2 ★0%
1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v6.3.5

• General performance enhancements & bug fixes

Description

From the listing uploaded by “appupdater”.

Most accurate and easy-to-use heart rate app - Used in heart research at UCSF! - Get your heart rate in less than 10 seconds - Check your stress levels and heart rate zone - See trends and insights You DON’T need a dedicated heart rate monitor to get your pulse, download Instant Heart Rate today and use your camera’s flash to see how healthy you are! With over 35 million users, the award-winning Instant Heart Rate app is all over the web. Featured in: CNN, The New York Times, Chicago Tribune, The Guardian, and many more. #1 Heart Rate app in United States #1 Heart Rate app in Japan #1 Heart Rate app in United Kingdom #1 Heart Rate app in Australia #1 Heart Rate app in Germany #1 Heart Rate app in France #1 Heart Rate app in China #1 Heart Rate app in Russia #1 Heart Rate app in Canada … and many more. Instant Heart Rate is continuously rated as the world’s best mobile heart rate measurement app and is trusted by Stanford’s leading cardiologists for use in clinical trials. Measure accurately your pulse and heart beat zone with your heart rate & health monitor after sleeping or during workouts & training. Instant Heart Rate doesn't require heart rate straps. Instant Heart Rate functions similarly to pulse oximeters, detecting change in blood flow in your finger to provide accurate heart beat measurements. • Measure your heartbeat, pulse, BPM and heart zone accurately in

Version history

5 versions are listed, going back to v2.7.0. Since v6.3.3 it requires Android 6.0+.

v6.3.5 LATEST Aug 27, 2026 67.8 MB TRUSTED v6.3.4 Sep 10, 2026 67.8 MB TRUSTED v6.3.3 Sep 10, 2026 67 MB TRUSTED v5.36.7238 Dec 23, 2025 57 MB TRUSTED v2.7.0 Apr 18, 2015 4.2 MB TRUSTED

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 27, 2026.
Certificate issued to “Modula d.o.o.” This is the certificate of the Google Play version.
Same certificate as the 3 other versions checked

Store checks and file details

Developer signature under review Aug 27, 2026
Validated against Google Play Aug 27, 2026
Signed byCN=Peter Kuhar, O=Modula d.o.o., L=Ljubljana, C=SI
Signing certificate (SHA-1)FE:2A:68:AB:35:E7:6D:37:4C:D1:EF:9F:43:46:05:D6:AA:F6:72:1B
File MD5c92cbd185b21997678b961edbf9eaa15
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (37)

Instant Heart Rate: HR Monitor requests 37 permissions, 9 of them sensitive.

Activity recognition Sensitive android.permission.ACTIVITY_RECOGNITION
Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
Body sensors Sensitive android.permission.BODY_SENSORS
Camera Sensitive android.permission.CAMERA
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read contacts Sensitive android.permission.READ_CONTACTS
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices custom audience android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Access notification policy android.permission.ACCESS_NOTIFICATION_POLICY
Advertising ID com.google.android.gms.permission.AD_ID
Bluetooth admin android.permission.BLUETOOTH_ADMIN
Commondata get common data (custom) com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
Context write use app feature survey (custom) com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY
Control vibration android.permission.VIBRATE
Flashlight android.permission.FLASHLIGHT
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) si.modula.android.instantheartrate.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Manage accounts android.permission.MANAGE_ACCOUNTS
Mapsagent read app info (custom) com.samsung.android.mapsagent.permission.READ_APP_INFO
Physical activity recognition com.google.android.gms.permission.ACTIVITY_RECOGNITION
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) si.modula.android.instantheartrate.permission.C2D_MESSAGE
Read profile android.permission.READ_PROFILE
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
Sync service read (custom) com.azumio.android.argus.intents.SYNC_SERVICE_READ
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Bluetooth android.hardware.bluetooth
Camera android.hardware.camera
Camera any android.hardware.camera.any
Basic touch input android.hardware.faketouch
Location android.hardware.location
Portrait screen android.hardware.screen.portrait
Sensor accelerometer android.hardware.sensor.accelerometer

Instant Heart Rate: HR Monitor APK: questions and answers

Is there a version of Instant Heart Rate: HR Monitor for older Android phones?

The current version needs Android 6.0 or later. Version 5.36.7238 is the newest listed build that installs on Android 5.0 and later. Get version 5.36.7238 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is Instant Heart Rate: HR Monitor free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Instant Heart Rate: HR Monitor APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 3 other versions checked. After downloading, check that the file's MD5 is c92cbd185b21997678b961edbf9eaa15.