@CliffWade @jcrabapple Masto.Host is still almost certainly cheaper but I do think they use a slightly different metric for users since SpaceHost is talking about "average users" and Masto.Host is talking about "active users".

Active users in a Mastodon context probably refers to the number reported by Mastodon, which is defined as anyone having even logged in within a month. Average users sounds like it refers to concurrent users on the site at any point in time, on average.