the author of this app says:
TealInfo is like a reference library at your fingertips. It lets you keep your important lists, reference tables, numbers, and guides in TealInfo data "Folios" which look and feel like mini applications. A tip calculator, sales tax table, address book, check list, and a metric conversion folio are included. Visit TealPoint Software's folios page for new folios or make your own with the included creation tools.