Your music stays on your computer.

Hand separation, fingerings, editing, playback and exports run in the desktop app. We do not upload your MIDI files, recordings or projects for generation.

Trial and activation

The free trial allows five successful hand-split generations per computer. Trial requests send a hashed computer identifier, a fingerprint of the MIDI file, and generation receipts so the service can track remaining uses. These are identifiers, not copies of your music. Optional fingerings for trial results are included.

Activating a paid product key sends the key and the computer identifier to verify the purchase. The app stores a signed license in your operating system’s protected credential storage. Once activated, paid generations work offline.

Payments

Stripe handles payment information when you buy a license. Split stores an order reference, purchase status and email for fulfillment and support; card details stay with Stripe. Save your product key after checkout. We keep a separately encrypted copy so we can deliver it and help you recover it. Resend processes your email address and the contents of license and recovery messages. These messages are transactional, not marketing. Recovery links expire after 15 minutes and can be used once. Temporary recovery records and hashed rate-limit records help prevent abuse.

Campaign measurement

We count browser-tab visits and page views on product and guide pages, plus clicks on the download link, to understand which launch campaigns are useful. A random visit identifier lasts only for the current browser tab. We store the page category, day and a recognized campaign label. We do not store IP addresses, browser fingerprints, referrers, arbitrary URL parameters or music in these measurement records.

A recognized campaign label may be held in your browser tab for 30 minutes. If you start checkout during that time, we may associate that label with your order and report aggregate checkout and verified-purchase totals. This association is restricted to our reporting and is not sent to advertising platforms. We do not use advertising cookies or third-party tracking pixels.

Event reports cover 30 days. Older event records and campaign-to-order associations older than 90 days are removed in bounded batches as new website activity arrives. Payment and licensing records follow their separate fulfillment and support purposes. We honor Do Not Track and Global Privacy Control for campaign measurement. You can also turn measurement off below; this preference is saved only in this browser.

Website and update requests

Our hosting provider receives information needed to deliver and protect the service, including IP addresses and request details. Short-lived hashed rate-limit records help prevent abuse. Update checks contact the release service; they do not upload music. Automatic update checks can be turned off.