Only the current version so far — new entries appear as the app ships updates.
建設mazec is a productivity app by MetaMoJi Corp. with 50+ downloads (about 93 estimated). Install growth, rank history, SDKs and ad networks.
From the store listing: “This is a handwriting input application that allows you to easily and efficiently input technical terms used at construction sites. Contains approximately 40,000 construction terms that can be used on-site, such as construction, construction management, and facility construction.”