Matrix To-Do ("the app", "the Service", "we", "us", or "our") is a personal task manager built around the Eisenhower Matrix. We take a privacy-first approach: we collect only the data the app needs to function, we never sell your personal information, and we do not show advertising. This Privacy Policy explains what we collect, why we collect it, how it is stored and shared, how long we keep it, and the rights you have over it.
This policy applies to everyone who uses Matrix To-Do, whether you create an account with email and password, sign in with Google, or use the "Try the demo" mode without an account. By using the app, you agree to the practices described here.
We collect the following categories of data, and only for the purposes described in Section 3:
| Category | Examples | Source |
|---|---|---|
| Account data | Email address; if you use Google sign-in: your name, email address, and profile photo | You / your Google account |
| Task content | Tasks, lists, quadrant placement, due dates and times, notes, focus ("Must-Do") selections, completion and "done" status | You |
| Reminder data | A device push-notification token, and your reminder on/off preference | Your device (only if you enable reminders) |
| Feedback | Messages you send through "Send Feedback" and the contact email you provide there | You |
| Technical data | Basic information your browser sends with each request (e.g. IP address, browser type) and online/offline status, used to operate and secure the Service | Automatically |
In "Try the demo" mode, you are not asked for an email or password. Demo content is sample data and is not tied to a personal identity.
We do not use your personal information for advertising, and we do not sell or rent it to third parties.
Where data-protection laws such as the GDPR apply, we rely on the following legal bases:
The app can generate AI-powered productivity reports. When — and only when — you request a report, the relevant task text is sent through our secure backend to Google's Gemini API, which generates the report and returns it to you. We do not send your task data to any AI service in the background or for any other purpose. AI output may be inaccurate; it is provided for convenience, not as professional advice.
The app is built on Google Firebase. We share data with these providers only to the extent needed to run the Service:
| Provider / service | Purpose |
|---|---|
| Firebase Authentication | Account creation, email and Google sign-in, session management |
| Cloud Firestore | Secure cloud storage and sync of your tasks and lists |
| Firebase Hosting & Cloud Functions | Serving the app and running secure backend logic (including the AI report proxy) |
| Firebase Cloud Messaging | Delivering reminder notifications to your device |
| Google Gemini API | Generating AI reports you request (see Section 5) |
These providers process data under Google's security and privacy terms. We may also disclose information if required by law, to enforce our Terms, or to protect the rights, safety, and security of our users and the Service.
Matrix To-Do is a Progressive Web App and works offline. To do this, it stores data on your own device:
We use these technologies to operate the app, not for advertising or cross-site tracking. You can clear this data at any time through your browser settings; doing so signs you out and removes the offline cache.
Google operates data centers around the world, so your data may be stored and processed in countries other than the one where you live, including the United States. Where required, such transfers are protected by appropriate safeguards under Google's data-processing terms.
We take reasonable measures to protect your data, including:
No method of transmission or storage is completely secure, so we cannot guarantee absolute security. Please keep your password and devices safe.
We keep your account and task data for as long as your account is active. Demo ("Try the demo") data is temporary and resets daily. You can delete individual tasks and lists in the app at any time. To delete your entire account and associated data, contact us through the in-app "Send Feedback" option, and we will remove it within a reasonable period, except where we are required to retain certain information by law.
Depending on where you live, you may have the right to:
To exercise any of these rights, use the in-app "Send Feedback" option. We will not discriminate against you for exercising your rights.
Matrix To-Do is not directed to children under 13 (or the minimum age required in your country), and we do not knowingly collect personal information from them. If you believe a child has provided us with personal data, contact us and we will delete it.
We do not use third-party advertising networks or cross-site tracking, and we do not track your activity across other websites. Because we do not track you in this way, we treat all users consistently regardless of any "Do Not Track" browser signal.
We may update this policy as the app evolves or as the law changes. When we make material changes, we will update the "Last updated" date above. Your continued use of the app after a change means you accept the updated policy.
If you have questions, requests, or concerns about your privacy, use the "Send Feedback" option inside the app and we will respond.