The whole bookshelf
A whole bookshelf in the weight of one sefer — preloaded on the device and working without a connection.
Talmud Bavli
The entire Shas — 5,406 pages with 38 commentaries: Rashi, Tosafot, Rishonim and Acharonim. In the original daf layout or as vocalized text
Talmud Yerushalmi
38 tractates with 3 commentaries — Penei Moshe, Korban HaEdah and Mareh HaPanim
Mishnah
63 tractates with 10 commentaries — Bartenura, Rambam's commentary, Tosafot Yom Tov and more
Tanakh
39 books with 11 commentaries and Targumim — Rashi, Ibn Ezra, Radak, Metzudot, Malbim and more
Rambam
Mishneh Torah with 8 commentaries — Ra'avad, Kesef Mishneh, Maggid Mishneh and more — and some 50,000 linked source references
Tur and Shulchan Arukh
All four sections, with 52 commentaries
Mishnah Berurah
In the original printed layout, including Shaar HaTziyun — volumes 1-2
Rif
23 tractates with 12 commentaries — Ran, Nimukei Yosef, Baal HaMaor and more
Midrash
25 works, 17,808 sections — Midrash Rabbah, Tanchuma, Pesikta, Mekhilta, Sifra and Sifrei
Everything links to everything
The seforim do not stand apart. From a daf of Gemara one tap reaches Rashi, Tosafot, the Rambam, the Tur, the Shulchan Arukh and its commentaries — and returns you to the exact same place. A reference in the Rambam opens its source in Gemara or Mishnah; a verse in Tanakh opens every sugya in Shas that discusses it.