Users no longer need Google+ account to leave reviews for local businesses on Google. Not only this, Google has also introduced a new interface for writing these reviews.
Mike said, “The separation of Google Local from Google Plus has been long and painful and this update is one of the last steps to make the separation complete. In doing so, Google reviews should be somewhat easier to leave going forward. Simultaneously with this update, Google seems to have fixed a long standing bug that prevented reviews being left on mobile browsers if the business had no previous reviews.”