Boeing LoadSheet include (737-400/500/700/800/900/MAX-8/900ER, 757-200/300, 767-200/300, 777-200/300/3ER, 787-800/900) is designed to cross-check the load sheet for pilots or dispatchers. This software is provided for information ONLY, and IS NOT intended to replace operational procedures. You are responsible for your calculation and resulting actions. You have to understand that the iPad/iPhone and this app itself have NOT been approved by any aeronautical authority or airline company to perform aviation safety tasks.