A mobile application is a computer program or software application designed to run on a mobile device such as tablet, phone or watch.

An application can be installed on Android, or IOS/Mac devices.

* Flutter: is an open-source UI software development kit created by Google. It is used for crafting beautiful cross platform applications for Android, iOS, Mac, Windows...

Flutter is not a programming language. It is a software development kit (SDK) with pre-written code, consisting of ready-to-use and customizable widgets, as well as libraries, tools, and documentation that together serve to build cross-platform apps.

* Rest APIs: is an application programming interface that allows interaction with restful web services.

How to build an app?

- Generate app idea

- Do competitive market research

- Write out features of the app

- Create app's graphic design

- Put an app marketing plan

- Submit app to App store

- Market your app for maximum exposure

- Improve your app with user feedback

Creating mobile app for Android and iPhone for free is easy. iBuildApp app maker software allows building apps in a matter of minutes, no coding required. Just pick a template, change anything you want, add images, videos, text and more.

* Front-end technology: In the world of software development, what's build falls into  categories: everything that's seen by the user and the process happening in the background. What we see and interact with as visitors of a website, is considered as front-end technology.