Hello Jolla Enthusiasts. A third party developer has ported Persecute, a WhatsApp client for Harmattan to Sailfish OS, under the name of Mitäkuuluu. The app is still under massive development, but it will be available via the Jolla Harbour when the application will be stable enough.

The latest version available is Mitakuuluu 1.20, which has been recently released, bringing a bunch of fixes to the previous version.
In this article I will show you how to instal Mitakuuluu 1.20 on the first Jolla smartphone, running Sailfish OS.
There are two installation methods, one from the GUI and one from the command line interface. I like the terminal method better, because I find it easier to update the apps, this was. And because I am a CLI Linux maniac. : )
Installation method 1: From the GUI.
Since Mitakuuluu is available via OpenRepos.net, you can easily download the app and install it directly from the file manager.
Download Mitakuuluu 1.20
Installation method 2: In the geek way, via zypper.
Since Sailfish OS is pure openSUSE, you have to switch to developer mode, install zypper, add the repository and key, update the system and install Mitakuuluu. Like this:
# pkcon install zypper
# zypper ar -f http://sailfish.openrepos.net/coderus/personal-main.repo
# rpm --import http://sailfish.openrepos.net/openrepos.key
# zypper refresh
# zypper install harbour-mitakuuluu
To uninstall Mitakuuluu, you have to install zypper (if you haven’t installed it already) and uninstall the app via zypper :
# pkcon install zypper
# zypper remove harbour-mitakuuluu
For those who don’t know yet, Jolla is a project developed by former Nokia employees. The first Jolla smartphone is running on Sailfish OS, a modified Megoo Linux system, which is Android compatible, uses Wayland as the default display server , uses Nokia N9′s Maliit touchscreen keyboard and comes with interchangeable covers, allowing the users to easily switch them, in order to change the color/model of the phone and comes with impressive hardware specifications. Apps can be installed via the Jolla Store, which will provide both Jolla and Android apps, or via F-Droid, Yandex Store, Amazon App Store, Aptoide and 1Mobile Android Market.