Are there applications/scripts for posting information to the site from smartphones?

Question

CMS

Greetings
I do not even know how to formulate a question and choose a topic. Are there any universal applications / scripts for smartphones, tablets that would allow you to post information from them directly to the site? Something like posting to social networks from applications to mobile. devices, only for the site's personal site. Here is a question. It would be possible to post something on a social network, and then take information from it to the site or make an application / a separate page on the site, but maybe there is already something ready?
PS
It is possible that some kind of add-on (such as an email client for mail, but with a different bias): we enter the details of access to the site / database, and the application already has all the button options (add an entry, photo, video, etc.) ...

Answer 1

This is called the admin panel and you can access it from the browser, right?
And whether it is adapted for mobile already depends on you.

Answer 2

if vorpress then here