The app Countr is equivalent to a manual clicker counter (photo shown above). A clicker counter is used to count or track large numbers of people, product or whatever that needs counting. It’s a small hand-held device, it’s cheap, and costs $3 at Office Depot. I’ve seen it being used by a sales personnel to count people going inside a shop. His hands on his back, clicking away as people go in the store.
The Countr app for is free (for today) and functions the same with digital features, one of such is saving previous “counts.”