It is not yet registered in the Android Playstore for the moment because it needs more tests to comply with the different kind of devices, but but you can try it already.
This is the icon of the app:
Once started you simply select the liquids you are using for your culture, they are ordered by vendors and stored in our database on Internet, which contains all the informations on the schedule from the vendor.
Then you simply select the products you want to use for growing your plants.
Finally, you select which culture stage of the schedule you want Vattenbruk to dose for you.
and that's it ! just click on the "Upload " button and let the doser manage everything for you...