Is there a full-fledged offline version of Habrahabr for Android?

Question

Android

I would very much like to read Habrahabr in a tram. We don’t have WiFi in trams (there was an experiment, but we changed our minds), I don’t have 3G in my smartphone either (it’s not profitable for me to take a tariff because I make very few and rarely phone calls and it’s more profitable for me to throw money as it runs out, take a tariff purely for the sake of the Network also makes no sense, because there is no objective need for this, and payment for traffic without a tariff is very expensive). I would like to just download the full database (and not select individual ones, for example) of full versions of articles (not announcements) for a certain period (preferably more, and with the ability to delete already downloaded ones by choice, and not vice versa) and read without connecting to the Web. Please let me know if there is such an application? Thanks in advance.
PS: Toaster's offline reader with the ability to periodically upload questions and answers, read and write answers offline, and then send them when the connection appears - would also not hurt.

Answer 1

What program (under Win XP) can download a site while maintaining the structure of folders and files?
They write about https://play.google.com/store/apps/details?id=com....
And how much memory is on a smartphone? if 8 gigs then you can forget about offline reading.
And there is no offline version.

Answer 2

unlimited Internet from a megaphone 150 rubles a month, although this is the tariff with the lowest speed, I don’t think it’s expensive. You can go to the desired pages via Wi-Fi before leaving, and then read them, since such a topic.

Answer 3

All your TK is an asynchronous (deferred) work with an on-line service.
The most important problem in the implementation of such applications is the synchronization of application data when there is a connection with the on-line service in both directions.
"Just reading is enough for me" - a customizable parser. For example, datacol. Or write your own in any language using regexp/xpath patterns to fetch the required data and cache it (so as not to reload what has already been loaded before).
"I would like full functionality to work with toster.ru" - here it would be easier to create your own API for proxying work with minimal traffic, because the relevance of the data is lost very quickly (let's say you wrote a response to a comment and someone added it before synchronization)...
Bottom line: write a client (PhoneGap: AJAX-based one-page site), your own proxy service to reduce traffic (only data transfer) and buy the cheapest Internet ...
I think it will be optimal ...