This is a Tip App like no other.
This app offers a tip calculator. and so much more:
Tip Calculations for Restaurants, Taxi and Bags. It uses a database for tip hints for most countries in the world.
It allows you to view reviews, and monitor currencies from anywhere in the world, updated on a day fresh basis.
Locations are automatically recorded. It records them into a database that can be used to submit expense reports.
Al of the data can optionally be shared on all your devices.