Signal.
The only app you need if you are worried about your privacy.
Note that I see a lot of FB messenger on here, which is substantially worse than WhatsApp on privacy. I'd avoid it.
WhatsApp is allowed to share data with third parties. This concerns, for example, your telephone number, your contacts and your user data. In addition, WhatsApp does not store your messages encrypted on your phone. Obviously, this is also a weak spot in WhatsApp's security. When your phone is stolen, the thief can easily access your chat history. https://x8spedersapk.id/wa-gb/