It may be confusing but how can I make an app that creates app with block coding with appinventor?
App Inventor IS A BLOCK coding system. 
Do you want to know how to code with App Inventor?
http://appinventor.mit.edu/explore/ai2/beginner-videos
Here are some resources to help you learn to use the AI2 tools. A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks.
There is a free programming course here Course In A Box and the aia files for the projects in the book are here: App Inventor 2 Book: Create Your Own Android Apps
How to do a lot of basic things with App Inventor are described here: How do you...? .
Also look here App inventor español. Offline. Tutorial. Ejemplos. Instalación. Códigos. Juegos. Curso gratis de App inventor. and here http://www.imagnity.com/tutorial-index/ for more tutorials
Learn about components Component Reference
and visit the Library The MIT App Inventor Library: Documentation & Support Help>Library on the MENU
Uh... I want to make a service like app inventor with appinventor that i can make apps with blockcoding in mobile
You want to build a version of App Inventor on your own server perhaps. 
wow thank you
Whats this?