Symbol 3894 from ISO 7000 - Title/Meaning: Easy to use 
Function/description: To indicate that the equipment or software has been rated as ""easy to use"" according to established criteria for such evaluations. On health application quality labels: to indicate the ""easy to use"" quality score for the application.
Own work using: iso.org/obp/graphics/grs/b496347e-864c-4b2c-9ba8-cba24e6f9557 200.png
Vectorization:  Mrmw