Pro version also do not contain any type of Advertisement.
This is a very special Reader that allows you to read texts and books with incredibly fast speed.
When you use Sprint Reader your average reading speed rises up to 500-800 words per minute!
It's 3-5 times faster than the average 200 wpm reading speed.
You can get used to it in just 5 minutes. Try it, it's really easy.
With practice you will be able to rise your limit up to 1000 words per minute.
There is also "Read From Clipboard Feature" - just copy any text from your internet browser and press Read from clipboard Button in this App!
Do not try to pronounce the words in your head, just read and absorb every word.
Consider increasing the speed when you get used to your current wpm.
On 1000 wpm speed you can read a 700-page Book in ~3 Hours in total.