Usability
Interface 
User-friendliness/complexity of the tool´s interface
Easy to use, intuitive.
Time efficiency Time needed for mastering the „how-to“ of the tool and a production of a task
Medium.
Interface language(s) The number of languages in which the tool is currently available/adaptable to
English.
Respect for privacy Does the tool require registration? Who can see my data? Can I remain anonymous?
High. Lingt does not collect any students’ user data but email addresses, but this is optional. For teachers, it collects email addresses, usernames, and posted content information. Lingts also gathers browser cookies, such as IP addresses, but only for internal use. It does not share personal information with third parties for advertising. Lingt mentions reasonable security measures. It does not explicitly declare compliance with the GDPR. See more here.
Saving work for future use Possiblity to save your or others´ work for reuse/reproduction
Yes, users with an account can save their creations and retrieve them at a later time.
Tailorability (If so, how?) Possibility of the tool to be used for a range of different activities (e.g. to what extent you can organize a project assignment with a central activity based on this tool)
Medium; users can create different types of assignments and activities with Lingt.