Privacy Policy

LumaFlowruns entirely on your Mac. Your videos are processed locally — they never touch our servers, because we don't have servers. We don't track you, profile you, or sell your data. Payments and any optional iCloud sync are handled by Apple, not by us.

This policy is published by Cassandra Studios EOOD (“Cassandra Studios”, “we”, “us”), a company registered in Bulgaria.

Registered address: 73 Bulgaria blvd., Triaditsa Distr., Sofia, 1404, Bulgaria.
VAT ID: BG206817882.
Contact: hello@cassandrastudios.com.

The LumaFlow apps for macOS and iOS, and the marketing website at https://lumaflow.cassandrastudios.com.

LumaFlow converts HDR video files into SDR. All conversion work happens locally on your device. Source files and rendered outputs are never transmitted to Cassandra Studios.

Specifically, we do not collect, store, or transmit any of the following:

• The video files you import or export
• Usage analytics, crash reports, or telemetry
• Device identifiers, IP addresses, or fingerprints
• Your name, email, or any account information

The apps do not contact any servers operated by us. They contain no third-party analytics, advertising, or tracking SDKs.

Some features rely on Apple platform services. In those cases the data is processed by Apple under Apple's Privacy Policy, not ours.

In-app purchases (StoreKit)

When you buy a subscription or lifetime license, the transaction is handled by the Apple App Store. We receive an anonymous receipt confirming entitlement; we do not see your name, email, billing address, or payment method.

iCloud sync (optional)

LumaFlow uses iCloud to sync your free-tier quota and conversion library across your devices. This data lives in your own iCloud account. We have no access to it. You can disable iCloud for LumaFlowat any time in System Settings → Apple ID → iCloud.

The marketing site at https://lumaflow.cassandrastudios.com is a static page hosted by Vercel. We do not set marketing cookies. Vercel may log server-level access information (IP address, user agent, request path) for the operational purposes of running the hosting service, under Vercel's Privacy Policy.

If we add privacy-respecting analytics in the future (e.g. aggregated page-view counts with no personal identifiers), we will update this policy before doing so.

LumaFlow is not directed at children under 13, and we do not knowingly collect data from them. The app is, however, safe for all ages — it processes only files you explicitly drop into it.

If you are in the European Economic Area, the UK, or Switzerland, you have the right to access, correct, delete, or export any personal data we hold about you, and the right to lodge a complaint with a supervisory authority. In Bulgaria, that is the Commission for Personal Data Protection.

In practice, because we do not collect personal data, there is normally nothing to access or delete on our side. For data held by Apple (App Store purchases, iCloud content), please use privacy.apple.com.

To exercise any of these rights with us, email hello@cassandrastudios.com.

We may update this policy as the apps evolve. Material changes will be announced on this page with a new effective date.

Questions? Email hello@cassandrastudios.com or write to Cassandra Studios EOOD, 73 Bulgaria blvd., Triaditsa Distr., Sofia 1404, Bulgaria.