Tempo is a new calendar app for iPhone that not only attempts to handle your appointments and schedule more elegantly, but also doubles as somewhat of a personal assistant. It achieves this by tying into several different account types such as your emails, contacts, and more. The more you use Tempo, the smarter it gets, and the more relevant the information presented to you will be.

Readdle has updated their popular Calendars app for iPhone and iPad, and renamed it Calendars+. That's because they're also introducing an all new, all free version under the original Calendars name.

Fantastical, the fantastically functional calendar app by Flexibits, has just been updated to version 1.1. I've been beta testing it for a while, and as clichéd as it sounds, it really does make the already great app even better.

Sunrise Calendar launched in the App Store this week to mixed buzz. It looks interesting but it only works with Google Calendar and requires -- requires -- you to login with Facebook before it will let you start using the app. That's an absolute show stopper for me. I don't need or want to login to a calendar app, and if I did, while Facebook would be a welcome option among many, I won't use any third-party app, not ever, where it's the only option. But that's not all...

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