Usability
Interface 
User-friendliness/complexity of the tool´s interface
Simple, slightly old-fashioned.
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 (?). Polishedplay, the administrator of PuppetPals2, claims that no user information is collected, stored or shared. It does not use cookies or analytics either. Unfortunately, its privacy section lacks information on important aspects such as security. PuppetPals2 does not explicitly state compliance with the GDPR. See more here.
Saving work for future use Possiblity to save your or others´ work for reuse/reproduction
Yes, progress is saved on the device.
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 can create or re-create any story. However, scenarios, puppets’ clothes, and other objects are pre-defined.