مثقال is a free Android app developed by Shahnam Golshani that falls under the Education & Reference category. Its main focus is to provide up-to-date information on the prices of gold, coins, and currency. With this app, you can easily keep track of the fluctuations in prices without having to spend hours researching.

The app's user interface is simple and easy to navigate. The home screen displays the current prices of gold, coins, and currency in Iran, along with a chart that shows the trends in the prices over the last 30 days. You can also select a specific date to see the prices on that day. The app allows you to customize the display of prices based on your preferences and set up notifications for when a particular price reaches a certain level.

Overall, مثقال is a great app for anyone who is interested in keeping track of the prices of gold, coins, and currency in Iran. It is user-friendly, informative, and regularly updated with the latest information.