Valor Taximetro 2021 is an Android app developed by pescamillam that provides an easy and reliable solution for calculating taxi fares in Bogotá. The app takes into account the number of units and the date and time of the ride to determine if it's a nocturnal, Sunday, or holiday fare.

One of the most impressive features of Valor Taximetro 2021 is that it is an open-source app. This means that anyone can access and modify the code on the app's Google Code page. Additionally, the app works on all Android devices, including older versions like Android 1.6 and some 1.5.

It's important to note that the app only charges the initial flag-down fare once, which is 25 units. Users should not accept any additional charges for using the app to calculate the fare, as the prices mentioned in Valor Taximetro 2021 are accurate and legal.