SwapSpace is an aggregator, Magi is a liqudity layer. Those two things have nothing in common. Secondly, youre using a centralized service and currently the top option for a Hive-BTC swap via SwapSpace is Changely that charges a minimum of 0.25% service fee. A Hive-BTC swap via our pools is 0.16% for multihop plus tiny CLP fee so its under 0.2%.
Its cheaper then the cheapest option.

Altera has a service fee of 0.25% on top of that on selling Hive and 0% on all buys of Hive and HBD. So anyone buying Hive, in a non-KYC, trustless manner they pay the least of any swap option that exists.
Ofc, frontends will charge their own fees as will aggregators but you can use the SDK and widget yourself that we will post today and not charge anything.