Tempo Smart Calendar is the only calendar that intelligently finds and neatly organizes everything you need for each meeting, including contacts, locations, and related emails and documents.
2- Donna Manage Your Day
Donna manages your day, proactively giving you everything you need for an appointment: when to leave, if you need an umbrella, directions, attendee information, and one tap access to conference calls—all in a beautiful, simple interface.
3- Agenda Calendar
Agenda is the calendar app for people that love calendars: simple, unobtrusive, and breathable. It gets out of your way, so you can focus on managing your day better.
Fantastical is the fastest and friendliest calendar app. Just type in "Lunch with John in Cupertino on Friday" and Fantastical will schedule it! If your device supports dictation* you can also speak the details for your event and Fantastical will handle the rest. Best of all, the beautiful interface makes using your calendar fun and easy.
5- Calendar for Living
Cal is a free, simple & smart calendar app for your iPhone. With a fast, intuitive and beautifully designed interface Cal is the best Calendar app you've ever tried.
6- Mynd Calendar
Use Mynd as your primary calendar for a week and discover how it can help you be successful. It's incredibly easy to setup because Mynd works with all the calendars you've already got on your phone.
7- Atlas: Scheduling Re-Invented for Mobile
Introducing Atlas: the easiest way to schedule meetings - 100% re-invented for mobile users. No email. No attachments. Atlas makes 1-to-1 scheduling and group scheduling easy and elegant.