Speechify offers a variety of font choices, including a dyslexic-friendly font that may help with reading comprehension.
To find the option, please follow the steps below.
Open the Speechify app
Go to your Speechify library and open the document you wish to read
On the reading screen, next to the kebab (three-dots) icon, tap the reading mode icon as pointed out in the screenshot below.
Hit the Aa icon, and you will find the font options
Click the right arrow on the font section and choose the font style
To adjust the font size, simply tap the '+' button to make the text appear larger, or '-' button to make the text smaller.