That's correct. We do this intentionally, because in the statistics there are not a lot of people using an iPad. So by not developing for iPad, we save time for working on My RUAS. You can however use my.rotterdamuas.com and pin it to your home screen (open my.rotterdamuas.com in Safari, tap the Share icon (square with arrow pointing outwards) and tap Add to Home Screen). This webversion does scale correctly.