To take better advantage of LonelyCache, it is important to become a member and be logged in. Membership in LonelyCache is based on membership in Geocaching.com. That is, a LonelyCache account is paired with a Geocaching.com account and shares the same account name. Basic membership is free for all who are interested and only entails logging into LonelyCache.

LonelyCache also offers a subscription based service that offers more features than the standard membership. Going forward, it is likely that all new features added to LonelyCache will only be available to subscribers.