✓ Yes

✗ No

- Not applicable

~ Optional

Last update: 26.1.2017

Full Thesis

[1] These numbers (in millions) are supplied by their vendors and wildly mix “registered users”, “daily active”, “monthly active” as there is no standard to this

[2] Total Estimate, based on the downloads just on play store,

[3] There exist other XMPP clients on these platforms that can communicate with them

[4] A second desktop-like device, but no second phone

[5] Storing plain-transmitted messages on server also counts

[6] These protocols have been reverse-engineered and are partially based on open protocols

[7] Not using TLS, but a vulnerable self-implementation

[8] Feature upcoming