I'm doing programming/coding using my phone for a long time.In this time range I've gained a lof of experience and learned a lot. So based on my experience, I'm going to share a review of 3 Code Editor application for android and my experience says that these 3 apps are best to do programming/coding in android phone. If we go just a few years back, then we can see that there were no applications or maybe one or two applications available for code editing or if there were, then maybe they were just for some simple text editing purpose. So we can say that before a few years there were no rich text editor or code editor applications available for mobile phones even our mobile phones were not so smart as today's. But Alhamdulillah, today there are varieties of applications available in the Play Store or in the Apple Store and they have much more features than we can imagine a mobile application can have. So, based on my experience and the features & functionalities