I am not really sure if these are considered apps. I usually use these websites to get book recommendations. * Hacker News Books - https://hackernewsbooks.com

I am not really sure if these are considered apps. I usually use these websites to get book recommendations. * Hacker News Books - https://hackernewsbooks.com https://hackernewsbooks.com, the weekly most mentioned books on HN * reddit reads - https://www.redditreads.com https://www.redditreads.com, the books that Reddit users are reading * Shepherd - https://shepherd.com https://shepherd.com, the book recommendations from authors, creators, and experts. I found interesting books from blogs sometimes.