Last updated August 12, 2026.
This covers the store: this site, buying an app, and getting a license key. Each app has its own privacy page, on its own site, because what an app does with your files is a question about that app rather than about this one.
The short version: your name and email reach me so a key can be issued and sent, and nothing else does. No cookies, no analytics, no tracking, no marketing email.
No cookies, no analytics, and no fonts, scripts or images loaded from anywhere else. It's hosted by Vercel, which keeps ordinary server logs including IP addresses. Downloads are served by GitHub, so following a download link is a request to them.
Payment is handled by Creem as merchant of record. They collect what a payment needs: name, email, billing details, tax information. Card numbers never reach me.
What reaches me is your name and email, which I use to issue your key and send it to you. Your name is written into the key. I keep that record so I can reissue a lost key and handle a refund. Nothing else, and no marketing email.
There's no separate database of licenses. A key is worked out from your Creem order, so Creem's record of the sale and a copy of the email I sent you are the whole of it. That is also why a key can be sent again years later without anything being stored here.
The form at software.zigao.wang/key takes an email address, asks Creem what that address has bought, and emails a key for each of them to the address on the order. The address you type is used for that lookup and is not stored, added to a list or used for anything else. It answers the same way whether or not the address has bought anything, so it can't be used to find out who owns what. Vercel's server logs record the request as they record any other.
Email a@zigao.wang to ask what I hold, get a copy, correct it or delete it. Deleting it means I can't reissue your key, but the key you have keeps working, because nothing checks with me when it's used.
If this changes, the date at the top changes with it.