WeAproove Lite is a free web service that requires no registration. WeAproove+ has a free edition, and you need to register to use it. Once registered, WeAproove+ users can upgrade for more users, storage, and functionality by using in-app purchase options. 

Both free editions allow users to create one review session at a time with the following limitations;

• One reviewer (Two reviewers in + edition)
• One file (max 100 proofs) or one video or;
• 100mb in storage space (whichever comes first)
• One proof version

When you register for the free edition of WeAproove+, you get access to a proofing dashboard, stored contacts, and the ability to review annotations inside the proof reviewer. (These features not possible in WeAproove Lite because it is a free service with no registration).

Amaze your clients with WeAproove's award-winning review interface, which utilizes genuine Adobe and Microsoft libraries to ensure what you see is what you get!
Clients can annotate, comment, @mention, collaborate, and compare versions from one central location using a modern, slick HTML5 Interface that is compatible with desktop and mobile devices. The @mention tool in other Online Proofing technologies is only available in expensive "Business" editions with WeAproove+ it comes as standard for FREE! 

WeAproove Lite is a straightforward web service that allows you to quickly send proofs to your customer and receive back a marked-up PDF and proof decision. 
WeAproove+ is an application that allows you to register for free. Once registered, you have instant access to a proofing dashboard with the ability to store your contacts for quick invites and see all your proofs from one central location. 

WeAproove Lite is a simple service that offers no upgrade path.
WeAproove+ allows you to start using the product for free but with the option to add users, storage, or unlock more functionality. Only pay for what you need!

Guest Reviewers are free, and they do not need to be registered in WeAproove Lite or WeAproove+; they are invited by the proof owner or via @mention (if you activate this feature).
A guest will receive an email invitation to review, annotate, and make decisions on a proof/s. By clicking the email link, they will be taken directly to the relevant proof to complete the review cycle.