Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.

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

Google Sheets - Synchronizing, online-based word processor, part of Google Drive.

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

Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.

AMC Aviation - Airline Maintenance and Engineering