CatchApp for iPhone currently syncs with Apple Calendar and Google Calendar. We do have plans to include Outlook Calendar in the near future so that you can view your Outlook events inside of CatchApp.
However, in the meantime, a quick solution is to sync your Outlook Calendar with your Apple calendar on your iPhone. This will allow you to view your Outlook events inside of Apple Calendar, which will allow you to view them inside of and then sync your Apple Calendar with CatchApp.
Steps to syncing your Outlook Calendar with Apple Calendar on your iPhone:
1. Open iPhone ‘Settings’
2. Tap on ‘Calendar’
3. Tap on ‘Accounts’
4. Select 'Add Account'
5. Tap on Outlook
6. Sign in to your Microsoft Account
7. Choose to sync calendars
Once you have done this, simply return to CatchApp and sync it with your Apple Calendar. Your Outlook events will now be visible in CatchApp.