An easy way:
$ sudo apt-get install fritzing
A more complex way to install a desired release of the Fritzing app:
$ sudo apt-get install libqt5serialport5
$ sudo apt-get install libqt5xml5
$ wget https://github.com/fritzing/fritzing-app/releases/download/CD-498/fritzing-a1ffcea08814801903b1a9515b18cf97067968ae-master-498.bionic.linux.AMD64.tar.bz2
$ tar xfj fritzing-a1ffcea08814801903b1a9515b18cf97067968ae-master-498.bionic.linux.AMD64.tar.bz2
$ cd fritzing-a1ffcea08814801903b1a9515b18cf97067968ae-master-498.bionic.linux.AMD64 && ./install_fritzing.sh
thanks