Real books are how your Chinese actually improves. The hard part was never the reading — it's the stopping to look things up. Kaishu makes that a tap: pinyin and English appear right on the page, and your place is saved to the exact character. Import your own EPUB, TXT, or HTML books, or start with the samples. Tap inside an idiom and the whole phrase resolves. The ~125,000-entry dictionary is bundled and works offline. Free, no account, no tracking.