Privacy Policy
Last updated: September 2026
Overview
Diagrammix is designed with your privacy in mind. We believe your data should remain yours, and we've built our app to reflect that principle.
Data Collection
Diagrammix does not collect any personal data. Your diagrams, documents, and files remain entirely on your device and under your control. The only information the app sends is a technical crash report if the app crashes, as described below.
- We do not collect usage analytics
- We do not track your behavior within the app
- Crash reports contain only technical information — never your diagrams or documents
- We do not use any analytics or advertising services
iCloud Sync
If you choose to use iCloud Drive to store your documents, your files are synced through Apple's iCloud service. This is governed by Apple's privacy policy. We do not have access to your iCloud data.
Local Storage
All your diagrams and settings are stored locally on your Mac. When you save a document, it's saved to a location you specify on your file system.
App Store
Diagrammix is distributed through the Mac App Store. Apple may collect certain information related to your purchase and download. Please refer to for details about their data practices.Apple's Privacy Policy
Crash Reporting (Firebase Crashlytics)
Diagrammix uses Google Firebase Crashlytics to receive crash reports. If the app crashes, a report is sent with technical details such as the stack trace, app version, macOS version, and Mac model, together with a randomly generated installation identifier. Crash reports do not include the content of your diagrams or documents, and we use them only to find and fix bugs. Google processes this data under the Firebase terms and privacy policy. Apart from crash reports, Diagrammix works entirely offline and does not require an internet connection.
Changes to This Policy
We may update this privacy policy from time to time. Any changes will be posted on this page with an updated revision date.
Contact
If you have any questions about this privacy policy or our practices, please contact us at: