Threema costs about 4€ and works without a phone number. It's currently not open source but they are planning to go open source. They're based in Switzerland. I don't know enough about meta data leaking but at least they're aware of it.
Threema costs about 4€ and works without a phone number. It's currently not open source but they are planning to go open source. They're based in Switzerland. I don't know enough about meta data leaking but at least they're aware of it.
Oh that's good. Last time I remembered/checked they weren't but good that they're now.