Compare and Differences Zoho Docs vs Zoho WorkDrive

Compare and Differences Zoho Docs vs Zoho WorkDrive

Zoho is confusing more often with overlapping functionality in their apps for which it is not always clear what the recommended / best way is to you use what where. In this particular case I would like to understand when to use WorkDrive vs Docs.

In general can I get an overview of:
Zoho Docs capabilities  - vs - WorkDrive capabilities

to compare?