MicroCAS Legal

Privacy Policy

MicroCAS is designed as a local-first, offline-first engineering calculator app. This page explains what data stays on your device, what can leave the device only when you choose to back up or move it, and how to contact us about privacy questions.

Effective date: April 12, 2026 One-time purchase model Core workflows run locally
No third-party advertising, analytics, or tracking SDKs are used in the core app flow. Your calculators, saved calculations, references, and preferences stay on your device unless you deliberately back them up, move them, or otherwise send them yourself.

1. Who We Are

MicroCAS is provided by Complex Automation Systems GmbH.

Complex Automation Systems GmbH
Universitatsring 12, 1010 Vienna, Austria  
Support: support@casystems.at
Privacy: office@casystems.at

In this Privacy Policy, "MicroCAS", "we", "us", and "our" refer to Complex Automation Systems GmbH.

2. Scope

This Privacy Policy applies to the MicroCAS application and related support and privacy contact channels.

MicroCAS is built to work locally on the device without requiring a user account, always-on cloud services, or a recurring subscription for core use.

3. Core Privacy Model

  • Core calculations and creation workflows run on your device.
  • No account is required for core usage.
  • No third-party advertising, analytics, or tracking SDKs are used in the core app flow.
  • Your custom calculators, saved calculations, history, materials, and preferences stay on your device unless you choose to back them up, move them, or otherwise send them yourself.

4. Data Stored Locally on Your Device

MicroCAS may store the following categories of data locally so the app can function and preserve your local app state:

  • App preferences, language, themes, dashboard layout, and menu order
  • Favorites, recent tools, and recent smart-query history
  • Saved calculations, timestamps, inputs, and outputs
  • Custom calculators, including formulas, labels, units, graph settings, descriptions, and preview images
  • Custom materials and related reference entries
  • Local backup files created for migration or restoration

5. Data We Receive Only If You Choose To Send It

We do not automatically receive your local app content in the core app flow. We may receive data only when you deliberately send or disclose it, for example:

  • when you send a backup file or other app data outside your device;
  • when you email us, submit a privacy request, ask for support, or contact us through our website;
  • when app stores or platform services provide purchase, licensing, fraud-prevention, or compliance information.

6. Calculator Backup and Transfer Files

MicroCAS may let you create local backup or transfer files so you can restore your calculator data later or move it to another device.

These files may include formulas, titles, descriptions, labels, units, graph settings, reference bindings, saved preferences, and related app data that you created.

If you choose to create or send a backup or transfer file, you control where it goes and who receives it.

7. Restoration and Device Migration

Backup and restore flows are intended to help you continue using your saved calculators, app preferences, and related local data on the same device or another device you control.

When you initiate a restore or migration, the files involved may contain locally stored calculator definitions, saved values, materials, history, and preferences.

We do not automatically receive those files in the normal app flow.

8. How We Use Data

  • to make the app work as a local engineering calculator app;
  • to save preferences and preserve local app state;
  • to generate backup, restore, or migration files at your request;
  • to respond to support, feedback, and privacy inquiries;
  • to handle legal, accounting, compliance, fraud-prevention, or security obligations where applicable.

9. What We Do Not Do in the Core App Flow

  • We do not require account creation for everyday core workflows.
  • We do not automatically upload your custom calculators, saved calculations, history, materials, or preferences to our servers.
  • We do not use third-party advertising SDKs.
  • We do not use third-party analytics or tracking SDKs for core app usage.
  • We do not process payment card information directly inside the app.

10. External Services and Third Parties

Even though MicroCAS is local-first, some third parties may process limited data in certain situations:

  • app stores and platform providers may process purchase, download, installation, update, crash, licensing, fraud-prevention, or compliance data under their own policies;
  • operating system share sheets, mail clients, file pickers, and storage providers may process files or metadata when you choose to use them;
  • website, email, or contact providers may process data when you contact us through external channels;
  • regulators, advisors, auditors, or legal authorities may receive data where disclosure is required by law or necessary to protect rights, safety, or compliance.

We do not sell your personal data.

11. Retention and Deletion

Local app data

Because MicroCAS is local-first, most app data remains on your device until you take action.

  • delete items individually;
  • replace local data through a restore you initiate;
  • clear app data through your device or operating system;
  • uninstall the app;
  • remove copied backups from your own storage locations.

Support and privacy contact data

If you contact us, we may retain your message, contact details, and attachments for as long as reasonably necessary to respond, resolve issues, maintain business records, or comply with legal obligations.

12. Security

We use a local-first design to reduce unnecessary transmission of user data. However, no method of storage, transfer, or computing environment is completely risk-free.

  • Protect access to your device.
  • Review files before sending or restoring them.
  • Be careful about placing sensitive information into custom calculators, notes, preview images, or backup files.
  • Choose secure destinations when saving or moving files.

13. Children

MicroCAS is a general-audience technical productivity app and is not intended for children.

14. Your Choices and Rights

Because most MicroCAS data is stored locally on your own device, many privacy controls are available directly to you.

  • Delete custom calculators, saved calculations, and local files
  • Avoid sending backup files off the device
  • Remove copied backups from your own storage locations
  • Uninstall the app or clear local app storage
  • Contact us with privacy questions or requests

Depending on your location and applicable law, you may also have rights regarding personal data we hold outside the device-only app flow, subject to legal limitations and exceptions.

15. International Processing

If you contact us or use external support, website, or email channels, your information may be processed in the countries where we or our service providers operate, subject to applicable legal safeguards.

16. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in the app, legal requirements, support processes, store disclosures, or business operations.

When we update this policy, we will revise the effective date shown at the top of this page.