I usually love Mariner software, they have a lot of mac-friend apps that have been great in the past, but recently their apps for mobile devices (iPhone and iPad) have been total and complete garbage. This is sadly not worth the 5$. I needed a spreadsheet app for ONE project and did not want to bother buying the full version for my laptop (60$), and had this worked AT ALL it would have been fine for my 1 project. Sadly, the only thing this app did was crash and loose my information. I would literally get maybe 1 line of information in, and if I changed the format of the cells, or the outline on the cells, or anything it would simply crash. When I rebooted I would find the file was there, but all of my information and style changes would be gone. This happened repeatedly until I just gave up.