CaseFox offers very affordable subscription plans.  CaseFox subscription plans are based on number of cases (projects) you create in the system.  Deleted cases are not counted toward this number, however archived cases do count.

For $10/month,  upto 25 cases.  For 26-50 cases, $20/month and for unlimited cases, $35/month. Each plan comes with 5 free users/timekeepers (they will have their own logins to user your account).  Additional users at @10/user/month.