Differences between Process Builder and other tools

Salesforce offers various tools to automate business processes, for example, Flow, Workflow Rule, and Process Builder. So, it is required to understand the difference between these tools and when to use which. The following table describes the difference between these tools:

	Workflow	Flow	Process Builder
Visual designer	Not available	Available	Available
Starts when	A record is created or edited	The user clicks on a custom button/link A Process starts Apex is called Inline Visualforce page The user accesses a custom tab	A record is created or edited
Supports time-based actions?	Yes	Yes	Supported, but only one scheduled-actions per criteria. This means that in the same Process, you can't send an e-mail after 5 days, 10 days, or 20 days, and so on.
Call Apex code?	No	Yes	Yes
Create records	Only task	Yes	Yes
Update records?	Yes, but only fields from the same record or parent	Yes, any record	Yes, any related...