As the title says, does Franz work on elementary os freya?
If so, how to install it?
Franz works perfect in Loki, should't be a Problem in Freya. Do the following in terminal:
sudo mkdir -p /opt/franz
wget -qO- https://github.com/meetfranz/franz-app/releases/download/4.0.4/Franz-linux-x64-4.0.4.tgz | sudo tar xvz -C /opt/franz/
sudo wget "https://cdn-images-1.medium.com/max/360/1*v86tTomtFZIdqzMNpvwIZw.png" -O /opt/franz/franz-icon.png
sudo bash -c "cat <<EOF > /usr/share/applications/franz.desktop
[Desktop Entry]
Name=Franz
Comment=
Exec=/opt/franz/Franz
Icon=/opt/franz/franz-icon.png
Terminal=false
Type=Application
Categories=Messaging,Internet
EOF"
Everything should work fine now.
I'm no totally sure, but I think that you should install libgcrypt11 to make it work properly.
You can do it here:
32 bits: https://launchpad.net/ubuntu/+archive/primary/+files/libgcrypt11_1.5.3-2ubuntu4.2_i386.deb
64 bits: https://launchpad.net/ubuntu/+archive/primary/+files/libgcrypt11_1.5.3-2ubuntu4.2_amd64.deb
Try it after GDog solution if it doesn't work.