# Book Bridge: Send to Kindle — OPDS Library & EPUB Manager > Send books to Kindle, manage libraries, and analyze content with advanced features. (iPhone/iPad app by Ben Shi.) - Source: https://appshunter.io/ios/app/book-bridge-send-to-kindle/id6780741088 (this page in markdown: same URL + `.md`) - Developer: [Ben Shi](https://appshunter.io/developer/1771351623) - Category: Books, Utilities - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 12+ - Requires: iOS 26.0 · 4 MB - Languages: American English - Released: 2026-07-02 - Data updated: 2026-07-05 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/book-bridge-send-to-kindle/id6780741088/reviews.md ## What is Book Bridge? Your self-hosted library is packed with thousands of worlds, but getting them onto your Kindle shouldn’t feel like fighting ancient technology. If you are tired of messy email setups, clunky USB cables, and formatting errors that ruin your reading immersion, you aren't alone. BookBridge is the ultimate, elegant command center built for book lovers, self-hosters, and power readers. Whether you manage a sprawling private server (Calibre, Kavita, Ubooquity) via OPDS or just have loose files scattered across your phone, BookBridge turns your digital chaos into a flawless, premium reading experience. In exactly one tap, BookBridge converts, optimizes, and beams any book from your personal collection directly to your e-reader. But BookBridge does something far deeper than just move files, it transforms how you curate your reading life. Finding your next great read shouldn’t depend on generic, mainstream algorithms. BookBridge deconstructs books down to their genetic code, extracting core story elements, pacing, prose styles, and micro-tropes so you can accurately hunt down books that perfectly match your specific mood. It’s a complete, beautiful digital bookshelf right on your iPhone. Key Features One-Click Send: Beam books directly to your Kindle in a single tap. Connect Your Catalogs: Seamlessly link your custom OPDS catalogs (Calibre, Kavita, Ubooquity, and more) to search and download files directly within the app. Instant Compatibility & Optimization: Got a file your Kindle doesn't support? BookBridge automatically converts and optimizes incompatible formats into clean, native EPUBs. Trope & Mood Extraction: Look past the cover. Discover core tropes (like enemies-to-lovers, found family, or slow burn), character archetypes, pacing, and narrative structures before you dive in. Granular Insights & Maturity Breakdowns: Organize your life with dedicated tracking (To-Read, Reading, Finished, and DNF) and view detailed community ratings for Language, Violence, Sensual, and Thematic content. Massive File Support: Effortlessly send large novels, documents, or research papers up to 15MB on the Free tier, or up to 200MB with Premium. Premium Aesthetics: Enjoy a stunning modern interface featuring blurry glassmorphic elements, smooth gradients, satisfying haptics, and dynamic custom themes (including our signature, reader-friendly Cream theme). Specifications Supported Source Formats: EPUB, PDF, DOC, DOCX, TXT, RTF, HTM, HTML, PNG, GIF, JPG, JPEG, BMP, and MOBI. Terms of use: https://bookbridge.top/terms ## Key features - One-click send to Kindle - Connect OPDS catalogs (Calibre, Kavita) - Automatic format conversion and optimization - Trope and mood extraction - Granular insights and maturity breakdowns - Support for large file sizes (up to 200MB with Premium) ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | BookBridge Premium | $2.99 | per month | ## Frequently asked questions about Book Bridge ### How do I send books to my Kindle using Book Bridge? Book Bridge allows you to send books to your Kindle in a single tap. You can connect your custom OPDS catalogs or select loose files from your device to beam directly to your e-reader. ### Does Book Bridge support different book formats? Yes, Book Bridge supports a wide range of source formats including EPUB, PDF, DOC, DOCX, TXT, and MOBI. It automatically converts and optimizes incompatible formats into clean, native EPUBs for your Kindle. ### What kind of content analysis does Book Bridge offer? Book Bridge deconstructs books to extract core story elements, pacing, prose styles, and micro-tropes. It also provides community ratings for Language, Violence, Sensual, and Thematic content. ### What are the file size limits for sending books with Book Bridge? The Free tier of Book Bridge allows you to send files up to 15MB. With the Premium subscription, this limit is increased to up to 200MB. ### What is Book Bridge Premium and how much does it cost? Book Bridge Premium unlocks larger file size support (up to 200MB) and premium aesthetics. It is available as a subscription for $2.99 per month. ### What devices is Book Bridge available on? Book Bridge is currently supported on iPhone devices. ### How often is Book Bridge updated? Book Bridge was last updated on July 2, 2026, with version 1.0. Specific update frequency is not detailed, but the latest version indicates ongoing development. ### What is the age rating for Book Bridge? Book Bridge has an age rating of 12+, suggesting it is suitable for users aged 12 and older. ## Version history (last 1 release) ### 1.0 — 2026-07-02 No release notes. ## Related topics [kobogo](https://appshunter.io/ios/topics/kobogo) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-05.*