A free program for Android, by Taxbot.

Taxbot is the first app in the world to track your expenses and mileage on a smartphone. It also helps you to create expense reports and track them against your receipts.

Why Taxbot?

The best part of Taxbot is that it does all the work for you. All you have to do is take a picture of your receipt. Taxbot will then recognize the expenses, create a report and send it to you.

Taxbot is actually designed to help you be bulletproof against an IRS audit. The app is created by an IRS attorney and uses artificial intelligence to ensure that you can prove your expenses with ease.

It also has a customer service team that you can call if you have any questions or problems. The app is free to use for 14 days, and you can cancel anytime.