It is possible to increase it up to 48counter.(Attention of one button's becoming small in this case very much)
MultiTallyCounter is best counter application for Traffic census, questionnaire, and bird watching, etc.
[The main function]
・1,2,3,4,8,12,16,24,36,48 Counters
・The name can be given to each counter
・Count Data can save as file(SDCard)
・Count Data can open from file(SDCard)
・Count Data can send to mail