My license key is not accepted

Keys are verified offline: the app checks an Ed25519 signature with a public key it ships with. That makes failures deterministic, and there are only a few causes.

The paste is incomplete

A key looks like RECORDIST-<block>-<block> and is long. Email clients sometimes wrap it. Paste the whole thing, including both blocks and both hyphens, with no spaces or line breaks. The app trims surrounding whitespace but cannot repair a missing block.

The period has ended

Pro keys carry an expiry matching your billing period plus a 7-day grace. When Stripe renews, a fresh key is emailed automatically; paste the new one over the old. If a renewal failed (expired card), the portal link in any receipt lets you fix the card, and the new key follows.

Recovery used a different email

Settings → License → Recover key sends the key to the checkout email you type in, and nowhere else. If you paid with a work address and type a personal one, nothing arrives. Check the receipt.

The app is older than the key format

A very old build may not know a newer key version. Update from the download page and paste again.

Still failing

Send a ticket with the first 12 characters of the key (never the whole key), your app version, and the exact error text. We can see whether the key was issued and reissue it if needed. Nothing else about your install is visible to us.