Calculator for Pebble smartwatches optimized for three-button interaction.
- Click up to increase the current figure; hold down to negate the operand;
- Click down once to add a zero to the right; double click down to remove it; hold down to insert a point;
- Click select to choose the operation and start inputting the second operand; hold down to use the last operation;
- Click select when you have both numbers to perform the calculation!
Check it out on the Pebble appstore! https://apps.getpebble.com/applications/574c54772e49dd0ef600000c