Privacy Policy

Last updated: March 2026

Introduction

LTCue ("we", "our", or "us") respects your privacy. This policy explains what information we collect, how we use it, and your rights regarding that information.

Information We Collect

License Activation

When you activate a license, we collect:

• Email address — From your purchase, used to identify your license
• Machine identifier — A hardware-based hash to verify activation limits
• Activation timestamp — When the license was activated

Update Checks

LTCue periodically checks for software updates. This sends:

• Current app version — To determine if an update is available

No personal information is transmitted during update checks.

Information We Do Not Collect

We do not collect:

• Audio data or timecode information
• Resolume composition content or clip names
• Usage analytics or behavior tracking
• Personal files from your computer
• IP addresses for tracking purposes

How We Use Information

We use collected information only to:

• Validate and manage your license
• Provide technical support when requested
• Check for and notify about software updates
• Prevent license abuse (e.g., activating on more machines than allowed)

Third-Party Services

We use the following third-party services:

Lemon Squeezy

Our payment processor and license management provider. When you purchase a license, Lemon Squeezy processes your payment and stores purchase information according to their privacy policy.

View Lemon Squeezy's Privacy Policy →

GitHub

We may host software downloads and update information on GitHub. GitHub's privacy policy applies to their services.

Data Retention

• License data — Retained while your license is active, plus 30 days after deactivation
• Support correspondence — Retained for 2 years to provide ongoing support
• Purchase records — Retained by Lemon Squeezy per their policies

Your Rights

You have the right to:

• Access — Request a copy of data we hold about you
• Correction — Request correction of inaccurate data
• Deletion — Request deletion of your data (note: this will deactivate your license)
• Deactivation — Deactivate your license at any time through the app

To exercise these rights, contact us at support@ltcue.app.

Data Security

We implement appropriate technical measures to protect your information. License data is stored encrypted on your local machine. Communications with our servers use HTTPS encryption.

Children's Privacy

LTCue is not intended for use by children under 13. We do not knowingly collect information from children under 13.

Changes to This Policy

We may update this privacy policy from time to time. We will notify users of significant changes through the app or via email.

Open Source Notices

LTCue is built with the following open source software. Where required by their licenses, we acknowledge their use here and provide access to their license texts and source code.

Qt / PySide6

LTCue uses Qt and PySide6 for its graphical user interface. Qt and PySide6 are © The Qt Company Ltd and contributors, licensed under the GNU Lesser General Public License v3 (LGPLv3). Source code is available at code.qt.io. LTCue does not modify PySide6 or Qt.

libltc

LTCue uses libltc for SMPTE/LTC audio decoding. libltc is © Robin Gareus, licensed under the GNU Lesser General Public License v3 (LGPLv3). Source code is available at github.com/x42/libltc. LTCue does not modify libltc.

Other Open Source Components

LTCue also uses the following libraries under permissive open source licenses:

• sounddevice — © Matthias Geier — MIT License
• NumPy — © NumPy contributors — BSD 3-Clause License
• python-osc — © Athanasios Douitsis — MIT License
• requests — © Kenneth Reitz — Apache License 2.0
• cryptography — © Individual contributors — Apache License 2.0 / BSD

Contact

For privacy-related questions or concerns, contact us at:

support@ltcue.app