We do not have a setting that disables the whole Chat feature, but you can switch it off for contacts within the conversation and your choice will be remembered for the next time.
How to switch:
- Inside the conversation, tap on the 3-dot menu and select 'Switch to sending SMS'
Inside the conversation, tap and hold on the 'send button'
Note, when possible, Truecaller try to send a Chat to save your cost on SMS. We will automatically detect if a person is using Truecaller and use Chat instead.