Oracle Analytics Cloud Day by Day for Android Quick Help How do I invite colleagues to use the app? 5 How do I invite colleagues to use the app? Android Quick Help In the app, tap Settings. Tap Invite Colleagues.You see the users available in the contacts list on your mobile device. Select a user or multiple users and then tap Select the mail app on your mobile device. The app drafts a mail inviting the selected contact to use the app. Tap in the draft mail to send it to the contact.