¡Tirame el dólar!

This app only provides a widget that searches and shows the value of the selling dollar of the blue dollar and the dollars of the BBVA, Nación, Galicia and Santander banks. The value is updated every half hour. By tapping it you can force an immediate update.

This app takes up almost nothing (much less than any other similar one), it consumes almost no memory, and it does not have any elegant design. It does one thing: provide dollar-value widgets and do it well.

There is no interface: to use it you need to add a widget. Generally this is done by pressing and holding for a few seconds on some empty spot on the phone's main screen. Then you must choose “Widgets”. The list of widgets available in the system appears there and you can choose this one from the dollar.