Whoa whoa whoa, what about this tipping app[1] I made that tells you what to tip so that your bill total ends in .69 (or some other childish ending) that got rejected by apple at least 10 times before I finally got it approved.
But note, I kept my freedoms on Android: https://play.google.com/store/apps/details?id=com.tip69&hl=e...