Looking for a Sales Tax/ Tip calculator? One that allows you to save time and doesn’t force an ad every time you change a number?

Merces offers (in no particular order):
•Lock screen widget for calculating tax without even unlocking your phone
•Auto-calculate sales tax using the sales tax rate you provide
•iPhone 7 and 7 Plus have feedback on taps
•Rotation on all devices
•Choose to enter your local sales tax rate, and your sales tax field will calculate according to your subtotal!
•Customize any of the service quality options for each of the 6 venues
•Choice to include the sales tax in your tip
•Total Amount & Tip Amount: Round both, one, or neither to the nearest dollar
•Adaptive UI to allow for the most consistent readability on iPhone