Apple just approved VOCalc, a Voice Over accessible calculator I've built.
From the blurb
VOCalc brings you a basic calculator which you can use without reading glasses.
The user interface is designed with readability for low vision users in mind. For this, high contrast and big clear fonts are used.
VOCalc is optimized for use with VoiceOver.
Expression entry is done with formula visible, like 2x(5-4). This way you always now where the result comes from and can verify the input.
Access to past calculations is only one button away as history is saved as you go. Previous expressions can be seamlessly modified for new calculations.
VOCalc is an universal app, meaning that it works natively also on iPad.
I've done my best to make it as VO friendly as possible, with support for multiple languages.
For low vision users the fonts are black on white and large. To give you an idea, on a 10" iPad the number 8 is about 7x22 mm in size, (just short of an inch tall for those using the imperial units.)
The first version is purposely bare bones to keep the use simple.
Possible extensions I see useful would be:
1. copy expression to clipboard
2. email of the "paper log". It already keeps it internally, with 50 last calculations persisting across sessions.
3. scientific calculator functions
If you think I missed something, or would like to see some extension, I'm happy to get feedback.
For the quick, three promo codes: