Subliun has ported antox to tox4j the new toxcore java wrapper. Antox is actively maintained.

Fdroid: add https://repo.tox.im/android

Google play beta: https://plus.google.com/communities/103125800027884896310

See Antidote.

Currently only 64 bit version of qTox is available in repository

To add it:

#remove old key
sudo apt-key del 0C2E03A0
 
sudo sh -c 'echo "deb https://repo.tox.chat/ nightly main" > /etc/apt/sources.list.d/tox.list'
wget -qO - https://repo.tox.chat/pubkey.gpg | sudo apt-key add -
sudo apt-get install apt-transport-https
sudo apt-get update -qq
echo "Tox Repository Installed."
echo "You can now install qtox"

The Tox overlay is now in the official layman list.

To add it:

layman -a tox-overlay

More info here.

Many Tox related packages exist in the AUR. However, if you have an issue with Tox and you installed Tox using the AUR packages, please compile that package from source before filing a bug report. If the issue appears to be on the Arch maintainers side (eg: compiles from source fine, but the PKGBUILD fails), please contact the package maintainer and let them know!

Alternatively, you could use supported PKGBUILDs.

Before you download, you need to understand that Tox is still alpha software, and under heavy development. Therefore, Tox is not ready for day-to-day use. Furthermore, the code for Toxcore and its clients has not had a proper audit, and could contain dangerous security vulnerabilities. Therefore, we cannot guarantee security in any way. For more information on why, and what Tox is and isn't capable of, please refer to our General Disclaimer. That being said, thousands of people around the globe have devoted time, effort, and resources to the project in an effort for Tox to be as secure as humanly possible. While open source projects are not immune to serious longstanding security vulnerabilities, their threat is greatly reduced, as the code is open for anyone to review. Over time, as Tox gets closer to stable, a proper security audit will be conducted, and the code will be checked thoroughly for any possible security concerns.

Thank you for your understanding, and happy testing!