Python is a high-level and interactive programming language. It has been designed to develop a syntax that is easily readable and similar to English.  Python is portable; it not only works on different operating systems like Windows, Mac, Rasberry Pi, Linux, etc. but also operates on a variety of hardware platforms with the same interface for effortless use. This enables programmers to build web-based software for desktops and laptops and mobile-based applications for Android or iOS smartphones.

Python is a great language choice for beginners who wish to explore the realm of the coding world. It is easy to learn, read, and maintain. Python offers a flexible approach and supports different programming techniques like object-oriented, procedural, and functional programming.  

Python connects to database systems and efficiently handles and modifies data to conduct and perform complex mathematical calculations. Hence, Python becomes a fitting language to provide agile prototypes and composing instant software.

Since Python offers a better structure and can easily integrate with other languages like C, C++, Java, it becomes the prime choice to develop Mobile Applications.    

Being an open-source programming language Python allows the programmer to modify and structure the code as the programmer wishes. And to make the entire process of building an Android or iOS application by using Python easier, there are diverse types of frameworks available. 

Frameworks like Flask, Web2Py, Pyramid, CherrypPy enable the possibility of building a wide range of products. 

When it comes to the types of Android or iOS application one can build using Python, it can be as follows:

-> Trendy Blockchain Applications and Console Applications

-> Audio and Video Applications

-> Game Apps like Disney's Pirates of the Caribbean game that has been developed using Python.

-> Organized System Administration Apps and agile E-commerce Apps.

-> Machine Learning Applications.

Some of the popular applications that people often use on their smartphones like Instagram, Pinterest, Spotify, and Uber, and Reddit are developed using Python.

The availability of various libraries, frameworks, and versatility of its code leads to all the more reasons to consider Python language to develop an efficient and desired application.