Des Moines-based RosterApps, a provider of airline ground crew scheduling software, has been acquired by Ohio company ARCOS LLC, reports Silicon Prairie News. ARCOS will retain RosterApps’ Iowa office and employees. The acquisition will combine RosterApps’ software-as-a-service airline platform with ARCOS resource management to fully automate scheduling, shift-trading, callout and track of flight and ground crew, ARCOS said.