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.

Leon - Leon is a scheduling software for aviation that helps to manage day to day aircraft operations with sales, crew, OPS & maintenance features.

Fyle - Track expenses across devices on-the-go and maintain a central repository. With custom approval flows, automatic policy violation detection and an automated audit trail, be audit-ready at all times!

Aircraft Cost Calculator - Aircraft Cost Calculator is a web-based solution designed to determine the operating costs of aircrafts and helicopters in the database.

Abacus - Expenses without the 'expense report'

AMC Aviation - Airline Maintenance and Engineering