This app is the voice enabled version of the Order Kopi SG app currently on the Google Play Store. To help to demystify the ordering of coffee at coffee-shops in Singapore.
You can try things like:
"coffee with less sugar", or
"tea with ginger", or
"coffee with evaporated milk and less sugar"
While care has been taken to make it sound as close to the actual pronunciation, at the moment, the pronunciation of some parts like "gar dai" is not exactly right as it is currently pronounced with a western accent.
Hopefully someday, this app will be upgraded with voice recordings of the kopi aunties and uncles from the coffee shops. In the meantime, you may like to visit the Google Play Store to get the Order Kopi SG app.