IBooks is compatible with iOS 10.0 and watchOS 5.0 or higher. Compatible devices: iPhone, iPad, iPod touch. You can try to update the system version again.

In addition, ibook supports Danish, Ukrainian, Russian, Croatian, Catalan, Hungarian, Bok malvin Norwegian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian and Czech.

Extended data:

Ibooks function:

1. Features: Browse millions of books and audio books, including novels, nonfiction, reasoning, adventure, romance, children's books and comics.

2. Bookstore: Check the leaderboard to learn about the new books, limited time offers and recommended contents updated every week.

3. Audio books: excellent audio books that enjoy high-quality voice reading by actors and authors.

4. Free trial reading: When browsing, you can preview books and audiobooks at any time and download free trial versions-some books can only be read "fresh" here.

5. Want to read list: You can always add the books you want to read and the audio books you want to listen to in the future to the "Want to read list" for your attention.

Apple Store-Apple Books