OfficeCalendar vs. ActiveCollab

OfficeCalendar is an easy-to-use, low-cost, server-based alternative to Microsoft Exchange Server that enables the sharing of Microsoft Outlook calendar, email, contact and task information on practically any Windows-based network, and does not require a dedicated server. OfficeCalendar Online gives users Outlook web access to their calendar, contact and task folders from anywhere and at anytime.

ActiveCollab is the work management platform for agencies and service businesses — from the first task to the paid invoice, in one place. Plan projects in List, Kanban or Gantt view, track time on every task with a built-in stopwatch, manage workload and capacity, and turn tracked time into estimates, invoices and profitability reports. Budgets, expenses, billable rates and online payments (Stripe, PayPal) are built in — no bolt-ons.