Can insert Text but not special characters

Purchased this app after careful review of similar apps. I need to label and insert text into drawings and this was a well-rated app which stated that Text was one attribute. However, even though they have a listing of "special characters", there does not appear to be a method of inserting the "special character" (in this case an arrow) into the photo. Extremely frustrating. I guess Im stuck with this.

E.T. Flynn about Great Photo Pro – Best all-in-one photo editor