You can access your Clio Contacts by selecting the Contacts sub-tab on the Home screen:
You can filter Contacts using the 'Filter contacts' option in the upper-right of 'All contacts'. You can filter by Contact type (All, People, or Companies) and Client status (whether the Contact has a Matter associated with them).
You have the ability to view Contact information in the Clio Mobile App by clicking on the Contact:
Clicking on any of the hyperlinked information (indicated with blue text) will allow you to interact with those options. For example, place a call to the number from your mobile device.
You can edit a Contact by selecting the Edit option in the upper-right corner of the Contact page.
General details, address, and contact details are editable within this page: