You can manage multiple counters.
You can also keep a record of your operations.
The recorded text file is stored in the following folder. (It may differ depending on the model.)
/Android/data/org.yyama.multicounter/files/data
The date and time of the operation output to the file is in the following format.
"Year-Month-Day Hour: Minute: Second"
Ex) "2020-11-29 15:11:52" (November 29, 2020 15:11:52)
You can choose the size of the counter from large, medium, and small.