privacy

Blood Pressure Log — Privacy Policy

Effective date: 2026-09-09 Last updated: 2026-09-09

Summary

Blood Pressure Log keeps the record a doctor asks for: a sitting a morning and a sitting an evening, two or three readings each, averaged, and handed over as a file at the end of the week.

This app holds health information, and it is the only Dash Fusion app that does. Your readings are health data. They are written to this app’s private storage on your phone, they are never uploaded, and the only way they leave the device is an export you perform yourself and choose the destination of.

There is no account, no sign-up, no cloud and no sync. There is nowhere for your numbers to go, because the app has no server to send them to.

Who we are

This app does not tell you what your numbers mean

This belongs in a privacy policy rather than only in the store listing, because it is the most important thing to know about what the app does with your health data: it does not interpret it.

It records, it arranges, and it hands over. What the numbers mean is a conversation for you and a clinician, and this app deliberately stays out of it.

What the app stores, and where

Everything is written to this app’s private storage, which no other app on your phone can read:

That is the whole list. There is no name, no date of birth, no email, no address, no phone number, no contact, no photograph and no location anywhere in it, because the app never asks for any of them. It supports one person’s record per installation and has no concept of a second profile, so there is no way to file a reading against the wrong body.

We hold no copy of any of it. There is no analytics SDK in this app, no crash reporter of our own, and no telemetry of any kind. Nobody at Dash Fusion can see a single number you have entered.

There is no Health Connect, no sensor, no wearable and no import of any kind. Every figure in this app was typed by the person it belongs to.

The app opts out of Android’s cloud backup and device-to-device transfer, so your readings are never copied into Google’s backup service. That is what makes the sentence at the top of this page true rather than merely well-meant. The honest cost: uninstalling the app, or losing the phone, loses your history. The export described below is the intended way to keep a copy.

Handing your record over, and what that file is

The whole point of the app is the moment you give the record to somebody, so it is worth being exact about it.

Who can see the app on your phone

There is no PIN, password or biometric lock, and this policy will not imply one. Anyone who can unlock your phone can open the app and read your readings.

What the app does do is set Android’s FLAG_SECURE on its own window, on by default. Its contents do not appear in the app-switcher preview, and screenshots and screen recordings of it are blocked by the operating system. That is a measure against somebody glancing at your phone on a desk or a train. It is not a security boundary. You can switch it off in Settings if you would rather be able to screenshot your own log.

The optional reminders are also written with this in mind: the notification says nothing about any reading. It says a sitting is due and nothing else, because a notification is a lock screen and a lock screen is read by whoever is standing there.

Third-party services we use

Google AdMob (ads)

The app is supported by ads served by Google AdMob. Ads are the only reason the app needs an internet connection at all; every reading, average, chart and export works fully offline.

The app shows no banner ads, no native ads and no ads on launch. A full-screen ad can appear at one moment only: when you finish a sitting — that is, when you close the sitting screen having recorded a second reading in it — and not every time even then. It never appears while you are typing a reading, never on the chart, and never on an export, because the moment you are handing your health record to a doctor is not a moment to interrupt.

There is also an optional rewarded video you can choose to watch, which removes ads for 24 hours. It is offered from one row in Settings, nothing in the app is locked behind it, and it never interrupts anything.

To serve ads, Google receives data from your device, which may include your device’s advertising identifier (AD_ID), coarse location inferred from your IP address, device and app information, and ad-interaction data. It does not receive any reading, any average, any note or anything else from inside the app. Your blood pressure is not sent to an advertiser, or to us, or to anybody. Google’s processing is done as an independent controller under its own policies:

Where required by law, the app shows Google’s User Messaging Platform consent form before ads are initialised, and records your choice. In the EEA and the UK you are asked about personalised advertising; in covered US states you are offered the opt-out required there. You can change your decision at any time from Settings → Ad privacy options, and if you decline, every feature of the app continues to work exactly as before.

Data we collect ourselves

None. We operate no servers, no accounts and no analytics. We have no database with your name in it, no health record of yours, and no way to identify you or your device. We do not sell or share personal information, and we do not sell or share health information, because we do not have any.

Permissions the app requests

That is the whole list. The app requests no camera, no microphone, no photos or media access, no storage permission, no location, no contacts, no calendar and no body-sensor or activity-recognition permission of any kind. The absence of the last one is deliberate and worth stating: a blood-pressure app is an obvious place to ask for health sensors, and this one has no use for them because you type the numbers off your own cuff.

A few more permissions are merged into the final app package by the libraries the app is built on, so the list Google Play shows you is longer than the ones above. They are the Android Ad Services permissions plus wake-lock and foreground-service, all from the Google Mobile Ads SDK. None is a permission Android stops to ask you about, and none is used by any code we wrote.

Children

This app is not directed at children under 13 and is not designed for use under the COPPA framework. We do not knowingly collect personal information from children — as described above, we hold no personal data at all.

Your choices

Changes to this policy

If we change this policy we will update the Last updated date above and publish the new version at this URL. Material changes will also be noted in the app’s release notes on Google Play. This policy is versioned publicly in the Dash Fusion privacy repository, so any change is visible in its history.

Contact

Questions about this policy or about the app: dash.fusion@outlook.com