Effective 4 November 2026
What the site itself stores
The cookie notice stores one value in your browser so the notice does not return after you accept it. If you connect MetaMask or Trust Wallet, this browser also stores the wallet address you connect and, if you choose a monthly payment, the amount and the next date to confirm. That reminder stays on your device. It is not sent to a Mattix server. The site never receives your seed phrase or private key. Google AdSense may set advertising cookies to show ads. The site does not sell personal data.
Contact form
If you send the form, Mattix receives your name, email address, the topic, an optional invoice reference, and the message. Those details are used to reply and, for an invoice, to match a payment.
When a mail service is configured, the message is emailed to contact@mattixs.com and shenzesun@mattixs.com. Otherwise your own email app opens with that message. Do not send passwords or card numbers in the form.
Payments and video
PayPal, Revolut, Payoneer, ABA, Ko-fi, Binance, Coinbase, Sentz, WeChat, and Alipay process their own payments under their own privacy notices. YouTube receives the usual player and visit data when a film loads.
A MetaMask or Trust Wallet payment sends ETH, SOL, or BTC to the published Coinbase Wallet address for that network. The dollar amount is converted with a public spot price when you confirm. The address, amount, and transaction are public on that network. MetaMask and Trust Wallet process the connection under their own terms.
How long and who to ask
Messages are kept long enough to answer and to keep a record of paid work. You can ask what is held about you, or ask for a correction, by writing to contact@mattixs.com.