The free version works better then the paid.

No support
No website
Not worth a dollar

Not the slickest app but the free version was enjoyed by my son, so we bought the full version.
Now it crashes every time we run it.
Wait until they update it, doesnt seem to be any support at their website.
When you try to go there, the URL goes to a dead link.
Looks like this developer has left this app to die and profit on a few more end users. Dont buy it until they update it!

drk01 about Sight Words Flashcard - 1000 words for kids in preschool, pre-k, kindergarten and grade school