You can choose to leave a chat that you are part of at any time.

To leave a chat:

1. Go to your Chats.
2. Find the chat you don't want to be part of anymore.
3. Open it and tap Ⓘ in the upper-right corner to open the Chat info. OR Simply swipe it left without opening until you see Leave on the right.
4. Tap Leave chat / Leave. The pop-up confirmation will appear.
5. Tap Leave chat.

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