Instructors cannot require the use of any tool that requires personal information unless that tool has passed UBC’s Privacy Impact Assessment (PIA). Please refer to the page on PIA Instructional Use Guidance to see which tools have been reviewed for instructional purposes.
If you do strongly recommend the use of a tool that has not been approved in the PIA process, equivalent alternatives must be provided for those who do not consent to enter their personal information into such a service. The alternative option must not disadvantage the students opting out of using the tool. That means that students who do not opt to use the tool should not be at risk of lower grades, or a hampered learning experience, because they chose not to use the tool.
Tools that do not require any personal information for signup are better alternatives, as they do not require PIA approval, however if recommending them you should make sure to caution students not to enter data that they would not want shared or stored, such as any personal information, or anything they would want to publish or protect such as intellectual property.