Blood Pressure Snap is a simple healthcare app that lets you record your blood pressure just by taking a picture.
■ Simply hold and take a picture
By holding the app over the display of your blood pressure monitor, it automatically reads and records your systolic, diastolic, and pulse rates. The reading process is completed entirely within your device. Images are never sent to external servers for reading.
■ Fully on-device
The core of Blood Pressure Snap is fully on-device OCR.
- Recording is possible even in airplane mode.
- Images and data are never sent externally for reading.
- Blood pressure readings and images are never sold or provided to third parties for advertising purposes.
■ Reference classification based on JSH 2025
The app displays classifications based on the Japanese Society of Hypertension's "Hypertension Management and Treatment Guidelines 2025 (JSH2025)" as reference information. Supports both home and clinic blood pressure readings.
- Normal / High Normal / High / Grade I / Grade II / Grade III / ISH (Isolated Systolic Hypertension)
- Reference values for each classification can also be viewed on the screen.
■ Trends and Summary
- 7-day / 14-day blood pressure and pulse rate trend graphs (30-day / 90-day graphs are premium)
- Daily average, maximum, and minimum ranges
- Classification breakdown, summary comments
- Record list and calendar (Displaying records older than 90 days is premium)
■ Family Records Together
- Add family members and separate records for each individual
- Switch with one tap
- View trends and classifications for each member
■ Export and Share
- PDF report (A4) — Easy format for sharing with your doctor
- CSV — For analysis in spreadsheet software
- Send via email, message, etc. from the Android share menu
■ Reminders
- Notifications at your preferred time in the morning or evening
- Test notifications allow you to check functionality
■ Privacy Considerations
- Captured images and blood pressure records are saved on this device. If Android's automatic backup is enabled, records (excluding photos) are also saved to your Google account backup.
- Only if the setting "Help improve reading accuracy" is turned on, images of scans that failed to read or misread (including the read value and corrected value if misread) will be sent for improvement (default is off).
- Anonymous usage data (which features were used and how much) is sent to improve the app. You can turn this off at any time in the settings.
- The app uses an advertising ID (AAID) for app installation tracking (attribution). Blood pressure readings, captured images, and your name will not be sent to advertisers.
- The free version displays ads (AdMob, provided by Google LLC) within the app. For ad delivery, the advertising ID (AAID), approximate location (estimated from IP address), and information on ad views and taps are sent to Google and ad delivery partners. Blood pressure readings and images will not be used for advertising purposes.
- For details on data handling, please refer to "Data Safety" and the Privacy Policy.
- Compliant with the Personal Information Protection Act (APPI).
■ Important Notice
Blood Pressure Snap is a healthcare app. It is not a medical device. This app does not measure blood pressure, nor does it diagnose or treat it. The displayed classification is a reference classification based on JSH 2025 and is not a diagnosis. If you are concerned about persistent readings, please consult your doctor.
In case of emergency (systolic blood pressure of 180 mmHg or higher, or diastolic blood pressure of 120 mmHg or higher, or if you experience chest pain, shortness of breath, numbness, or visual disturbances), do not hesitate to contact a medical institution or call 119 (emergency services).
■ As an alternative to blood pressure diaries and notebooks
No more hassle of writing blood pressure in a paper diary or notebook. Simply point your camera at your blood pressure, and your morning and evening readings will be automatically recorded.
■ Recommended for:
- Those who measure their blood pressure daily but struggle to keep records.
- Those with elderly family members who keep blood pressure diaries or notebooks.
- Those who want to neatly organize records to show to their doctor.
■ Frequently Asked Questions
Q. Is there a choice of blood pressure monitor manufacturer?
A. Any home blood pressure monitor that displays numbers on the screen can be used, regardless of the manufacturer.
■ Compatible Devices
- Compatible with Android 8.0 (Oreo) and later.
■ No Account Registration Required
This app is free to use. No account registration is required. Because it is free, advertisements will be displayed within the app. By subscribing to Premium (in-app purchase; monthly, annual, or one-time purchase), advertisements will be removed, and you can access records older than 90 days, 30-day and 90-day trend graphs, and PDF saving and sharing of reports.
Simply point your camera at the blood pressure monitor in just one second. It automatically records your blood pressure and manages it with graphs, replacing your blood pressure log or notebook. You can also share morning and evening readings, as well as those for your family, with your doctor as...