You can build for ios 7 at the same time as ios 6. They tend to assume you'll only want to target the latest, but it can be done without much trouble, esp. if y

You can build for ios 7 at the same time as ios 6. They tend to assume you'll only want to target the latest, but it can be done without much trouble, esp. if you already have a tested older project and are willing to put more time in to testing. I'm supporting an app which supports ios 5-7 at present but we tend to test only on 6-7, and have changed some of the UI to match better with ios7. The issues tend to be with matching chrome if you have custom controls, but if you don't have many custom controls, you'd probably be fine. I imagine it's not very different from the story for Android.