Sketch now allows you to enter text information into Sketch document.
Entering new text
To enter text into Sketch directly draw a vertical line on the screen. Then immediately start typing text. The text will appear at the scale that the line was drawn at. To save the text data press enter. To start a new line hit Ctrl+Enter. The plus and minus on the box change the size of the text.
Converting Hand Written Text to Text
To covert text that is already on the screen lasso or harpoon select the and click on the item menu (hamburger icon) and then select the menu to the right. You will see the option to text convert the note. Converting the text will change it to a text object with all the same rules as above.