I mean you can read it in your app and they're not just stored on your phone. E2E just means in transport from what I understand.
E2EE means end-to-end, where the ends are the participants in the chat. They can read it on your phone, but not on their servers. They need their app to separately transmit the plaintext to their servers to read it.
E2EE means end-to-end, where the ends are the participants in the chat. They can read it on your phone, but not on their servers. They need their app to separately transmit the plaintext to their servers to read it.