Why are there so may tip calculators out there that make the simple act of calculating a tip so hard?

Simple Tip is the easiest-to-use tip calculator in the Marketplace. Simple Tip stays true to the Windows Phone 'Modern' style and doesn't have background images that make the screen hard to read or crowd it up with a lot of unnecessary clutter.

Features:

• 5 Presets that let you assign tip percentages to various service levels from worst to best.
• Split a check between up to 100 people
• Tip and Total rounding options
• Currency display options
• One-tap tip calculation
• Tipping etiquette guide
• Animated Live Tile