Privacy Policy

Last updated: February 2026 · Published by dementia-tools.com

What is Spark?

Spark Mind Play is a cognitive engagement app designed for people living with dementia and their caregivers. It provides gentle, adaptive games with optional sensory stimulation features. Spark is not a medical device. It does not diagnose, treat, cure, or prevent any medical condition.

What data does Spark collect?

Spark stores the following information, all entered or generated by you:

Person profiles — Names and preferences you create for each person using the app
Session activity — Game events during play sessions, including which games were played, how long sessions lasted, and engagement indicators. A de-identified summary of this activity is sent to our analytics service unless you opt out (see "Anonymous analytics" below)
App settings — Your preferences such as onboarding completion and sensory settings

Spark does not collect:

Email addresses, phone numbers, or account credentials
Location data
Device identifiers or advertising IDs
Health or medical records
Photos, audio, or video (unless you upload custom content, stored locally only)

Where is data stored?

Your personal data stays on your device. Person profiles, names, photos, custom content, and your full session history are stored locally on the device where Spark is installed. There are no user accounts, no login, and no remote access to the content you enter.

Two features do communicate with cloud services, and neither sends names, photos, or anything that identifies the person using the app:

Anonymous analytics — a de-identified summary of game activity (see below). On by default; you can turn it off in Settings.
Life Story generation — when you generate a personalized story, the story prompt is sent to a cloud AI service with names and personal identifiers removed first (see "Life Story cloud generation" below).

Important: Session data is not clinical data

Session history (games played, duration, engagement indicators) is provided for general informational purposes only. It does not constitute a cognitive assessment, medical record, or diagnostic tool. You must not use session data to make medical decisions, adjust medications, or assess cognitive decline. Consult a qualified healthcare professional for all clinical decisions.

Anonymous analytics (on by default, opt-out)

To help us understand how Spark is used and improve it, the app sends a de-identified summary to our analytics service (Google Firebase) at the end of each session. This is on by default and can be turned off at any time in Settings.

Each summary includes only de-identified information:

An anonymous, randomly generated install ID and an anonymous ID for each person profile — not linked to any name
Which games were played, session duration, and timestamp
Engagement indicators — accuracy counts, hint usage, and other interaction signals
Account type (home or facility) and subscription tier (free or premium)

The summary does not include person names, facility names, photos, touch locations, device identifiers, or advertising IDs. When analytics is turned off, nothing is sent.

Life Story cloud generation

Spark can generate personalized life stories. When you request a story, the app sends the story instructions to a cloud AI service (Google's Gemini via Firebase AI Logic) to generate the text. Before anything is sent, names and personal identifiers are removed and replaced with neutral placeholders, then restored on your device after the story comes back. The cloud service does not receive the person's name or photos. Generated audio is produced on your device and is never sent to the cloud. If the device is offline, story generation falls back to an on-device model and nothing leaves the device.

Who can see the data?

Only people with physical access to the device where Spark is installed. There is no login, no sharing feature, and no remote access.

How do I delete data?

Delete a person's profile: Open the app, tap Edit on the person's card, and delete the profile. All session history for that person is removed.
Delete all data: Uninstall the app. All locally stored data is permanently removed.

Children and vulnerable adults

Spark is designed for use by caregivers on behalf of adults living with dementia. It is not designed for or directed at children under 13. All design decisions prioritise dignity, comfort, and safety. Any analytics we receive are de-identified and are never linked to a named individual.

Premium subscription

If you subscribe to Spark Premium, the subscription is processed entirely through the app store. dementia-tools.com does not collect or store any payment information.

Changes to this policy

If we update this privacy policy, we will post the revised version at this URL with an updated date.

Contact

dementia-tools.com · info@dementia-tools.com