We charge a 2.5% fee for a limited time. When this fee changes, we will give at least 3 days advance notice via our public channels to our delegators.
You can use use any of the supported wallets: Mathwallet (check out this handy guide), Keplr extension (guide), Ledger , or the Command Line Interface (CLI). Having trouble? Contact us and we will be happy to walk you thru the necessary steps.