How do I export my chat/call logs?

You can export your chat/call logs from within the Chat tab:

Open the chat tab, then the conversation you would like to export, then do the following steps:

Android

1. Tap the 3 Dot icon in the upper right hand corner
2. Tap Chat Info
3. Tap the 3 Line icon
4. Tap Export Chat Records
5. Enter the email address you want to send the call/chat logs to

iOS 

1. Tap on Profile Name
2. Tap Chat Info
3. Tap the 3 Line icon
4. Tap Export Chat Records
5. Enter the email address you want to send the call/chat logs to