Compare software

Plot Factory vs World Anvil: catalog facts
Plot Factory	World Anvil
Freemium Signing up is free; see the site for current plan details.	Freemium Free to start with no credit card; details of any paid plans are not covered here.
Web	Web
Worldbuilding, character and plot planning next to the manuscript Works in a mobile browser with no installation	Combines worldbuilding wiki, campaign manager and novel planning Campaign setup for more than 100 RPG systems
Online only, with your stories stored on the service Requires an account	Requires an account and an internet connection Your world lives on World Anvil's servers rather than in local files
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.