Sorry, I misspelled. It’s Tolino and they are German. https://mytolino.com/ I never looked into them in any detail. They seem to have their own ecosystem with their own book-diistribution, akin to Kindle using Amazon. I wanted an “open” reader where I can get books from various sources and install my preferred apps. The InkBook runs a modified version of Android and you can install (sideload) very many Android apps.

There are some drawbacks to InkBooks though. The OS is based on Android 11, I believe, which is extremely old for a current reader so I wonder if my library app will cut support for my device before it is worn out. My perssonal experience with the Focus Plus is also that the built-in pdf reader is bad., I’ve not been able to zoom in to remove the margins and only show the text, for instance. The list of supported languages is also relatively short if they want to be relevant in all of Europe. (German, English, Spanish, French, Italian, Hungarian, Dutch, Polish, Slovenian)

There are not a lot of InkBook reviews available, but I found a site with fairly extensive reviews in Polish, which the help of my browsers built-in translator I had no problems understanding the meaning.

6" Solaris: https://swiatczytnikow.pl/test-czytnika-inkbook-solaris-szesc-cali-z-androidem-innowacyjnymi-przyciskami-i-przezroczystym-etui-duo/

7.8" Focus Plus: https://swiatczytnikow.pl/test-inkbook-focus-plus-osiem-cali-z-szybka-aplikacja-do-epub-androidem-i-funkcjami-dostepnosci/