Comments: This product has been around for decades they work across desktop and mobile devices with an emphasis on mobile. I have used HanDbase on a palm pilot, Windows phone, iPhone, and iPad. They have fantastic features and incredibly full features. If you want a barcode reader check, if you want a relational database Jack, if you want dependent tables and drop downs's check, They are inexpensive you can buy them on the App Store. You could think of it like Microsoft access for mobile devices. What they lack is integration to global data bases so you couldn't create this as a front end. The data is local to the mobile device and would have to be synchronized to a desktop app then imported into your desktop database. They do have plug-ins that you can buy that will automate that process. But if you want A local database on your mobile device seriously look no further. They also have an extensive premade database library for free.