Privacy Policy - Concrete Calculator Pro (iPhone Construction Calculator)

Effective date: 13 August 2025

Who we are

techy.how publishes the iPhone app Concrete Calculator Pro.
Contact: contact@techy.how

What the app does

Concrete Calculator Pro helps users estimate concrete volume, bag counts, and cost. Pick a shape (Slab, Wall, Footing, Column, Stairs), enter dimensions, choose units (Metric/Imperial), set an overage (waste) %, and optionally add a unit price. You can save and share results.

Data we collect from the app

  • We do not collect personal data.

  • On-device only: Project entries (shapes, dimensions, costs, waste %) are stored locally on your iPhone.

  • No servers: The app does not send your data to us.

  • Sharing: If you export or share a result, iOS uses the system share sheet to send that info to the destination you choose. We do not receive it.

Accounts, tracking, and ads

  • No accounts or logins

  • No third-party SDKs

  • No analytics or tracking

  • No ads

Diagnostics & crash reports

If you opt in to share analytics with developers in iOS settings, Apple may provide aggregated crash logs/diagnostics. These do not directly identify you.

Payments

Purchases are processed by Apple. We do not receive your payment details. Apple may share aggregated sales reports with us (no personal data).

When you contact us

If you email support@techy.how, we’ll process the information you provide (e.g., your email address and message) to respond. We keep these messages only as long as needed to handle your request.

Your rights (EU/EEA)

If you contact us and share personal data, you can request access, correction, deletion, restriction, or portability, and you may object to processing. You also have the right to lodge a complaint with your local data protection authority (in Luxembourg: the CNPD).

Children’s privacy

The app has no user-generated content, social features, or ads. It is suitable for general audiences.

Security

The app is designed to work offline and store project data on your device. If you email us, we take reasonable steps to secure those communications.

International transfers

We do not run cloud services for this app and do not transfer app data internationally. Email communications may be processed by our email provider to deliver messages.

Changes to this policy

We may update this policy to reflect app or legal changes. We’ll revise the Effective date above. Material changes will be highlighted where possible.

Contact

Questions about privacy? Email contact@techy.how.