S.H.
Just go to www.starfall.com
It is free.
To learn to read, gadgets like this is really not needed.
Yes, it is fun.
It is a supplement.
Kids like it.
But you can also do it in many other ways.
Introduce 'phonics.' Sounding out the sounds to letters. Then sounding out the letters in words. Then sounding out the word.
Then there is sight reading. Recognizing words, visually.
Schools, use both phonics and sight words, to teach reading in Kindergarten.
The Leapster is also good.
Both my kids had that. It is educational for letters/reading/numbers/math.