All you wanted to suggest

Function: -pause -back -forward -repeat original text significantly improves narrator, making use more comfortable, useful and enjoyable

Hello it would be nice option if you can add auto scroll with manual speed, I mean there are some readers than you can press a button and start scrolling in order you don't need to scroll all the time.

Sync saved words between devices of a single account

Sometimes I also want to improve the original text, e.g. I download subtitles from YouTube that are not broken into sentences, there are only words but no punctuation marks. I would correct this while reading.

If you select the settings for the full translation (Advanced settings -> Automatic display of full translation) in the translation panel at the bottom of the screen, in addition to the translation itself, additional information appears, such as antonyms, synonyms and more. It would be nice to include an additional field named “Additional” in the entries of the dictionary, intended for synonyms, antonyms and other user info. This also corresponds to one of the Note types when exporting to Anki, where there is an Additional field, but in fact it is always empty. I want to share a universal template that I developed for Anki. Maybe this will give the developer some ideas. Note type UNIVERSAL Front: original word or expressions. Comments: type of entry (noun, verb so on) and other user comments about grammar etc in free form. Associations: synonyms, antonyms and other expressions in original language that can be associated with the Front field. Translations: translations in some languages that I know (currently 4). Context: examples of usage of the word or expression. Visuals: images, videos, gifs etc. Present: applicable for verbs. Past: applicable for verbs. Future: applicable for verbs. Pay attention that I do not use the transcription field. Modern technology allows you to replace this with TTS and transcription is simply not needed. Fields Front, Associations and Context are reproduced audio using TTS (AnkiDroid v. 2.17 supports this). I collect translations in some languages that I know in Translation field. This helps not only to learn the original language, but also to improve proficiency in others. This combines well with exporting from a Smart Book to Anki, where the fields for all translations are placed in one line in the Translation field

Add the ability to read RSS news feeds just like books

Ability to specify gender and article when saving words to the dictionary

When I translate a sentence using ChatGPT, it can be seen that it does not have access to earlier or later sentences. Modification of the prompt in such a way that it has access to the context of the sentence in which it appears could improve the translations by light years.

there are many books where a lot of information is hidden in footnotes

I like to read the subtitles for my target language for each episode I watch and mark the words

Sync books between devices of a single account

I'd like to save some phrases or paragraphs to re-read in the future, further investigate about it, etc. This is a basic feature that almost every other book reading app has and I think I'd benefit greatly its overall user experience

When I add a new fonts for both my native language and the language I want to learn ... change background and text colors ... i wish I can save these as a unique theme... adding a name to it and if it's for day or night ... then make it active ... this way i can add different themes and use any of them easily without having to change the colors, fonts, separately each time i want to try something new and I can't go back to how it was before easily also it would be very very nice to share themes with my friends via a link and if you made a page in your website for people to share there's, gathering spot where we can all swap cool designs, get inspired, and make our reading experiences even more enjoyable! Thanks!

Is it a way to redesign as to translate an entire paragraph not with a button, but with a gesture. For example, swiping across the text to the right - translating this paragraph, swiping to the left - pronouncing the paragraph.

Advantages: We immediately receive a finished deck, ready to transfer to other devices, send to someone or put in the repository. There is no need to first send the data to Anki, then export it to .apkg and then have a transportable file. Many users use SmartBook on a tablet, and Anki on a smartphone because using SmartBook on a phone is not convenient, the screen is too small, but for learning and memorizing a phone is more convenient, since it’s always at hand (and the vertical screen format is more suitable). This means that not everyone has Anki on their tablet and SmartBook on their phone. This process does not present any inconveniences (SmartBook -> .apkg -> Anki) since Anki users are more advanced and export to Anki does not happen often (as soon as new words accumulated in the dictionary). Anki has an effective mechanism for processing duplicates and cards moving from deck to deck, so users can handle it by themselves. In .apkg you can put anything you want, icons, any other media, etc.