Loving the sound + interaction detail. Hat tip to Kazmik!
Here's a real tip, instead of needing a calculator, move the decimal one point to the left and multiply that number by 2...
35.89 > 3.589
3 x 2 = 6
41.89 is your total.
No need to pull out phone, unlock, find app, use app.
In your example, I'd do 3.6 x 2 (for 7.2) or if I don't feel like doing that math, I'd just do 4 x 2 (for 8). Since there's usually a tip line on the check, I do the rest of the math like they taught in grade school (right to left).
The UI and style reminds me of Currency by Simple Simple.
My first thought when seeing it. Even the video and use of Brandon.
thanks, alex does great work
this is really nice - would like to hear about your process making it