In the Counting app you define an investigation about a project / event with a name (eg "Concert - Verdi Requiem"), a date of the project / event (eg, 28/11/2018) and the purpose of the study (eg "Where did you hear about the concert?"), after which you get access to define the topics of interest to register a number of, in the survey.
Given the topics "Newspaper", "Friends", "TicketNet", "Poster", "Facebook" and "Other", you can - at the end of counting - get a clue as to know where and / or
how it may pay to advertise.

The created topics can also be deleted / edited / saved. If the items are saved, they will appear at next use of the Counting app.
Once the items are created, press the "Count" button, after which a single press of either
"plus" (+) = count one up, or "minus" (-) = count one down (at error) until all relevant persons are asked. Then the count result can be sent to a recipient by SMS or e-mail.
The counters can be reset if deemed necessary.