Usability
Interface 
User-friendliness/complexity of the tool´s interface
Easy-to-use, straightforward.
Time efficiency Time needed for mastering the „how-to“ of the tool and a production of a task
Medium. The software requires some time to process the responses.
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. Speak & Improve collects no personal data but it records users' submissions to improve the software. For users who create an account, Speak & Improve collects various types of personal information, including information voluntarily provided. This includes email addresses, passwords, levels of study, mother tongue, and additional personal information, such as biographical details, personal opinions, likes, and dislikes. Speak & Improve also collects technical information, such as IP addresses and browsing data, together with cookies, which can nonetheless be deactivated. It also shares data with third parties for purposes such as providing services, research, analytics, and advertising. Speak & Improve stores data on secure servers, and payment transactions are encrypted using SSL technology. It also acknowledges users’ rights to access their data, request copies, make changes, correct, delete, limit or stop data usage, move data to a third party, or change their consent. Speak & Improve 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
No.
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)