Conklin & de Decker, a business aviation research and consulting firm, has introduced ACE On the Go!, an online interface for its Aircraft Cost Evaluator product. The website--accessible from any Internet browser, including those on mobile devices--provides subscribers with information about variable and fixed aircraft costs, annual budgets, quick comparisons of up to three aircraft and more.  Reports are customizable to meet user-specified criteria and can be exported to Word, Excel or PDF. The software incorporates fractional data, guaranteed-maintenance-plan information, aircraft photos, exterior and interior scaled drawings and limited performance stats for more than 500 aircraft. The annual subscription price for the Aircraft Cost Evaluator is $650 for jets, $550 for turboprops or helicopters and $450 for piston aircraft. Those prices include one free update.