Buildium is a cloud-based tool that was designed by property managers. It has three plans: Essential, Growth, and Premium. Essential starts at $50 a month and can support up to 150 units, while the Growth Plan begins at $160 a month, and the Premium Plan begins at $460 per month. Both the Growth and Premium plans can support up to 5,000 properties, with the Premium plan having more features than the other plans.