Tempo AI [free] is a calendar/assistant combo app. This app has a focus on using integration to get to know the user. The goal of this app is to have a more centralized life.
Pro Works as a personal assistant
If Tempo tempo gains access to e-mail, contacts, social networks or any other of the service integrations it supports, it will use that information to automatically fill out the calendar and serve up context based information such as related emails, files and contact info.
Pro Gives directions to an event's location
If location information is listed within calendar, Tempo can show the directions through an inline map.
Additionally, if the address to a desired destination is not listed in the calendar, Tempo can search services like Foursquare to figure out the location. This feature also displays contact info of the destination.
Pro Shows weather information
Basic weather conditions are displayed for the current day and the following day.
Pro Adds flight information to events
If flight information is added to an event title, Tempo will pull relevant real-time information and notify the user of any changes. This app also offers one tap flight status for quick updates.
Pro Native support for iOS Reminders
iOS Reminder tasks can be added, reviewed, and edited from within the application.
Pro Allows adding events using natural language
Tempo allows adding events by writing things like "Coffee with John at 1pm".
Pro Extensive integration
Tempo offers integration with a huge amount of services and uses them to automatically learn about the user. To mention a few, Tempo integrates with Waze for driving, TripIt for flights, SongKick to learn music preferences.
Pro Quickly send "Running Late" email or sms
If the user is running late for an event, the app can send a pre-written e-mail or text to notify the people involved or just a specified person.
Con Limited to 2 email accounts
Tempo only supports up to 2 connected e-mail accounts.
The Tempo app has been discontinued on June 30, 2015.