Flow Engine

Privacy Policy

Applies to the Flow Engine app and this website. Effective 28 October 2026.

1. Who we are

Apexial Systems ("we", "us") builds and runs Flow Engine and this website. If you have any question about this policy or your data, write to contact@apexialsystems.online.

2. Our commitment

We believe individuals should be in control of their own lives and their own data. Flow Engine is built to help you focus, not to keep you hooked. Everything you create in the app (rules, journal entries, habits, selected apps and limits) stays on your device. We have no accounts, we do not upload this data to our servers, and we do not sell your personal information.

The app shows ads served by Google AdMob. This involves limited data processed by Google, described in section 4.

3. What stays on your device

Flow Engine works by using Android permissions that you choose to grant. Information from these permissions is processed only on your device. We do not collect it, store it on our servers, send it to anyone, or use it for advertising.

• Accessibility Service. Used to detect which app is open and to read on-screen text, descriptions and interface element names, so the app can apply the rules you set, such as blocking certain apps, keywords or short-video screens. This information is analysed in real time on your device and is not saved or transmitted.
• Usage Access. Used to measure how long you spend in the apps you select, so daily time limits and open counters work.
• Display over other apps. Used to show the "are you sure?" countdown and block screens.
• Close background apps. Used to close an app when it reaches a limit you set.
• Your content. Journal entries, habits, rule settings and usage counters are stored in encrypted form on your device, and app data backups are turned off. Uninstalling the app, or clearing its storage in Android settings, deletes this data.

You can turn any of these permissions off at any time in Android settings. Some features will stop working.

4. Advertising and data collected by Google

Flow Engine shows ads provided by Google AdMob, using the Google Mobile Ads SDK. To serve ads, measure performance and prevent fraud, Google may collect and process, directly from your device:

• your device's advertising ID
• your IP address and the approximate location derived from it
• device and app information, such as device model, operating system version, app version and language
• ad interactions and diagnostic data

Google handles this data under its own policies: how Google uses information from sites or apps that use its services and the Google Privacy Policy. Depending on your region and your choices, ads may be personalised.

Your choices. You can reset your advertising ID or opt out of personalised ads in Android under Settings › Google › Ads (the exact path varies by device). Where the law requires it, such as in the EEA, the UK and Switzerland, we ask for your consent before showing personalised ads.

Information from the Accessibility Service, Usage Access or your journal is never passed to Google or used to target ads.

5. Messages and this website

• Feedback and messages. We are building Flow Engine around your feedback. If you email us, we receive your email address and whatever you choose to write. We use it only to reply to you and to decide how to improve Flow Engine.
• This website. It does not use cookies, analytics or advertising trackers. Our hosting provider may keep standard server logs, such as IP address and pages requested, as part of delivering the site. The site also loads fonts from Google Fonts, so your browser requests those font files from Google's servers, and Google receives your IP address as part of that request.

6. Sharing

We do not sell your personal information. We share information only in these limited cases:

• Google AdMob, as described in section 4, when ads load in the app.
• Our hosting provider, for serving this website.
• Legal requirements that we cannot refuse. In that case we would disclose only what the law requires.

7. Security and retention

Data created in the app stays on your device, is encrypted at rest, and remains until you delete it or uninstall the app. We keep messages you send us only as long as we need them to reply and to improve Flow Engine, then we delete them. We take reasonable care to protect what we hold, but no system is completely secure.

8. Your rights

You can ask us what we hold about you, ask us to correct it, or ask us to delete it. Because app data stays on your device, you can delete it yourself at any time by clearing the app's storage or uninstalling it. Depending on where you live, you may have further rights under laws such as the GDPR, UK GDPR or California law. Email us and we will respond within a reasonable time. For data processed by Google, use Google's privacy controls.

9. Children

Flow Engine is not directed at children under 13 (or under 16 where local law sets a higher age), and we do not knowingly collect their personal information. If you believe a child has sent us data, contact us and we will delete it.

10. Changes to this policy

We may update this policy from time to time. The effective date at the top shows when it last changed, and we will post the new version on this page. If we make a material change to what we collect or how we use it, we will update this policy before the change takes effect.

11. Contact

Questions, feedback or privacy requests: contact@apexialsystems.online.