Hi,
There are various apps which will help you to learn coding easily . Here are the list of some of them -
1. Codeacademy
2. Grasshopper
3. Free code camp
4. Udacity
5. Code hub
You can also study various books which will help you to learn coding easily and the important thing is that you have to maintain consistency and perform the functions daily. Here are the list of some books -
1. Javascript for kids
2. Code complete
3. Python programming
4. Programming pearls by jon bentley
5. Learning python
Hope it helps...

hello aspirant

as a computer science student , i want to guide you to first purchase a good book for coding such as let us c , let us c++ for c and c++ , java primer for java ,Java by Herbert Schildt and many more. ' secondly for app you can use some apps like udemy , coursera , unacademy for online certification courses also you can use app like learn html , learn python etc , you can easily find on google play store

for practise you can do coding with any editor also you can  use  coding  websites like hackerrank etc