The Pro plan is the best choice for most organizations, but there are use cases that make sense for each of the other plans. 

FREE: for monitoring a single parameter with a predictable pattern

This plan is perfect for monitoring a single APM for information on when to take action on a stable process. For example, a facilities manager might monitor a fuel tank and receive an email notification when the tank drops beneath a certain threshold. Removing the need to constantly monitor the tank saves time while still ensuring they have enough time to reorder fuel. 

ADVANCED: for monitoring multiple parameters with less predictable patterns

This plan is suited for situations with more devices where instant alerts are critical to prevent problems in a more unpredictable process. For example, a factory with multiple machines might monitor motor current to ensure that machines can be rapidly shut down in the case of an unexpected problem. Instant text messages are included in this plan to ensure alerts are delivered with the appropriate urgency.

PRO: for monitoring a critical process with long term trend analysis

This plan is designed for processes where analyzing patterns over time is critical for success. For example, looking at the frequency with which each motor in the factory hits a critical threshold over the span of a year would help a manager design a plan for more proactive maintenance and budgeting for repairs.  

EXPERT: for Pro users that need to scale up

This plan is a bigger version of Pro, including many more devices and unlimited data storage!