Price of premium version is 0.1 ZEC or equivalent in any other currency/wallet.
The premium version offers the user to use a certain range of commands via a telegram bot. This list includes such commands as: /clear, /info, /ping, /pool, /profile, /restart, /server, /startover, /stop, /online. And also receive notifications from the bot when the farm is offline.
the one mentioned in the first page
You can use this script for free but without only this Telegram commands. For this commands you need to pay 0.1 ZEC and send me your ChatId. All links on first post is for non premium (free) version.
Message was corrected, thank you.