Terms

Last updated August 12, 2026.

Ferry is written by Zigao Wang and published by Huimin Gao, which is the name the app is signed with. Buying it means agreeing to what's below. It's short on purpose.

What you're buying

A personal, perpetual license. It doesn't expire, it isn't a subscription, and updates are free. Use it on any Mac you own or use, at work or at home. Buying for other people means one license each.

You're buying a license to use the app, not the app itself. Ferry and its source remain the copyright of their author. Don't resell it, post your key publicly, or take the app apart to work around the key.

Refunds

Not for you? Email a@zigao.wang and I'll refund it. You don't have to say why, though suggestions are welcome and I read all of them. There's no trial, so this is what stands in for one. Your key stops being valid once the purchase is refunded.

What it needs

macOS 15.0 or later. Worth checking before you buy, because it won't run on anything older.

What I don't promise

Ferry is provided as it is. It works, and I've measured that it works, but I can't promise it's right for every file you own or that it will never have a bug. Keep your originals. Ferry is built not to modify or delete them, which is exactly why you should still have them if something goes wrong.

As far as the law allows, I'm not liable for indirect or consequential loss, and my total liability is what you paid. Nothing here takes away consumer rights your local law gives you.

Payment

Creem is the merchant of record. Their terms cover the transaction, including tax and invoicing. These cover the license.

Changes and ending it

These terms may change for future purchases, and the date at the top changes with them. What you already bought stays under the terms as they were when you bought it. Your license ends if you break these, and you can end it by deleting the app.

Law

Read under the laws of the People's Republic of China.