Usability
Interface 
User-friendliness/complexity of the tool´s interface
Straightforward, easy to use.
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?
Medium. Coggle collects only the necessary personal information necessary for the operation of the service, such as name, email address, avatar, gender (if declared), and language settings. Coggle’s policy is transparent about data sharing and privacy settings, although it could nonetheless provide more information on security measures. Users have control over their diagrams' privacy settings and can choose whether diagrams are public or private. They can also close their accounts to delete personal information. While the policy generally complies with the principle of compliance, it could specify the relevant data protection laws that apply. For example, GDPR is not mentioned. 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 work for later use.
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)
Yes, users provide the information to put together mind maps and others, and Coggle offers different personalisation features.