Unreliable, usually wrong.
It consistently interprets a "Do not wash" symbol as "Wash at 40° C"... It is difficult to get it to grab all the symbols at once, I sit here changing the light, angle, distance, refocusing, in a well lit room with high contrast tags on my iPhone 6S. Faster and safer to look them up on Wikipedia before I bought this app.
Floam about
Laundry Day - Care Symbol Reader