If these are commonly known, I apologize in advance, but I was so excited about these things that I felt it would be such a disservice if I didn't share.
1.
$1 has a very large selection of audio books for the visually impaired. The simple to use audio player and books are all free of charge, all that is required is that a request is filled and sent through the mail. The PDF is found on the website.
2. An IOS Apps was introduced to us,
$1 The app gives you directions to your location, but it also provides you with services, business' and such that you are passing along the way.
3. Lastly,
$1 is a money reader that reads your currency by sliding your bills through a hand held reader. There was also an IOS App, but cannot remember the name of it.
Hope this helps!