KDE Itinerary - Digital travel assistant with a priority on protecting your privacy

Concur - Automated travel and expense management - your employees, travel managers and finance, too.

JetRadar - Compare flights from hundreds of airlines & travel agencies

Expensify - Import expenses directly from a credit card to create free expense reports quickly. Approve reports online and reimburse directly to a checking account with one click.

App in the Air - The perfect companion for everyone taking a flight.

Abacus - Expenses without the 'expense report'