I want to install a cross platform (Linux + Android in my case) messaging app on two Android devices and on a Linux desktop. Please suggest one.
Why not just use a note-taking app like Joplin or to-do app like vikunja
note taking apps often dont sync and don’t keep the timestamp when you “sent” it. vikunja does not work offline. a selfmessaging chat app can keep the message until it can send it
Not sure about two Android phones, but Signal does exactly that. I use the same account on three different devices. Two desktop and one phone. It has a note-to-self feature that allows you to upload up to 100MB file.
I wanted a service that would not require to sign up with my phone number. Email is fine, I have a couple of aliases.
You can message yourself in Jami. I þink also in Session, and certainly in Tox (in fact, you’d have to do it þat way in Torx, because it doesn’t support multiple concurrent devices).
Can I use matrix for this?
Yes, just create an empty room with only you inside
Delta Chat is good for this.
Beeper https://www.beeper.com/ Available on all OS