The very best.
Now that iplan is available on both iPhone and iPad, it is the only calendar app I will use. I see reviews by people whove been having trouble, but Im using it on an iPad 3, iOS 6.0 and iPhone 4s iOS 5.1.1 without any problems at all. Id recommend it without reservation, but for the vocal few whove apparently had issues. I love the clarity this app lends to my schedule... I actually enjoy using it! Elegant, full-featured, supported well. Absolutely worth it.
Lostbonsai about
iPlan for iPhone