Your purchase, updates and data.

Digital delivery

After a successful Stripe Checkout payment, your confirmation page shows an activation code and the Full download link. A purchase email delivers the same code and link. Keep that email so you can download future versions.

Full includes the standalone app, AU and VST3 for macOS 15 or later on Apple silicon and Intel. A physical PCM81 and a MIDI interface that passes SysEx in both directions are required to control the hardware. See the quick start before installing.

If payment is still processing, access follows payment confirmation. If you were charged and cannot find your purchase, contact support using your purchase email or receipt. Do not send card numbers or activation codes.

Seven-day refunds

You can request a full refund within seven calendar days of purchase. Email info@cass.app with the email used at checkout or your receipt so the purchase can be located.

A full refund cancels that purchase's licence and download eligibility. The refund is processed through Stripe back to the original payment method. Your bank determines when the credit appears.

This refund offer does not limit any rights provided by applicable law.

One purchase and lifetime updates

All future PCM81 Control updates are included for life at no additional charge. Existing buyers use their original purchase download link to get the current Full release.

One licence covers two active computers. Standalone, AU and VST3 share the activation on a computer. Use Deactivate this computer in the License panel while online before moving an activation to another Mac.

Online activation issues a licence valid offline for 90 days. The app renews its validation when online; there is no recurring charge or subscription. If the licence expires while you are offline, reconnect and refresh it. See the activation instructions.

Purchase and licence data

This section covers the PCM81 Control purchase, licensing and update services.

• Purchase records: checkout email, payment references, amount, currency, purchase date and fulfilment/refund status are used to deliver the product, provide updates and support, and verify purchase eligibility.
• Activation records: an installation public key, computer label and activation/renewal status identify each activated installation and enforce the two-computer limit. The private installation key remains on your Mac.
• Service requests: activation and update requests pass through Cloudflare. Servers receive ordinary request information such as IP addresses. The update checker requests the feed for your edition.
• Audio and patches: licensing and update checks do not upload your audio or patch contents. The editor works locally, and hardware editing is sent to your PCM81 over MIDI.

Stripe handles checkout and payment processing. Full card numbers are not stored in the licensing database. Resend delivers purchase email. Cloudflare hosts the website and licensing service, stores purchase/activation records and release files, and provides website traffic analytics.

Purchase and licensing records are retained to provide licence management, lifetime updates, refund handling and purchase support. Email info@cass.app to ask about access, correction or deletion. Removing purchase or activation records may affect the ability to provide those services.

Product support

For setup, activation, billing or refund help, email info@cass.app. Include your app/macOS/DAW versions, plug-in format, MIDI interface and the exact error when relevant. Keep private purchase links and activation codes out of support messages.