Coin Counter Camera is a free Android app developed by Pristálica that enables users to count coins quickly. The app has two main features. Firstly, it has a coin calculator that helps you calculate the total revenue by entering the number of coins you have in the cash register. Secondly, it uses your phone's camera to count coins on a clear surface.

Using the OpenCV library, the app can detect coins of different currencies, including EUR, USD, AUD, GDB, and ARS. The app detects coins by marking them with a circle, and it does not tell you the value of the coins. The app advises users to use a white surface or paper sheet for the coins to improve detection.

However, the app has some limitations. The detection process is hard and may not work well on some low-end phones. The resolution, flash lighting, and distance of the camera may also affect the coin detection. Additionally, the app only detects a limited number of currencies, but users can contact the developer to add more currencies.

Overall, Coin Counter Camera is a handy app for those who want to save time counting coins. With a few tests and tips from the app, you can get the proper way to handle it.