If you wish to synchronize your Contacts on your device with Talkatone then try the following (see video tutorial below):
1. On your device, go to Settings
2. Tap on Accounts option
3. Tap on Talkatone
4. Tap on the Email address displayed
5.- CHECK the box next to the Sync Contacts option
Restart Talkatone. You should now see your contacts information from Contacts in Talkatone now.