DoCube vs KeycoBoard

DoCube is a multi-format reader and personal knowledge base built for deep reading. Bring PDFs, EPUBs, local videos, web snapshots, Markdown, and organized scanned documents into one library. Annotate, link, search, translate, export, and review while you read or watch. Your materials are not merely stored—they gradually become knowledge you can retrieve, connect, and remember. 【Deep Reading Across Formats】 DoCube supports PDFs, EPUBs, local videos, offline webpages, Markdown, and parsed documents. Whether you work with research papers, ebooks, web articles, course videos, lectures, interviews, or your own Markdown notes, you can read, watch, and manage them together in DoCube. 【Deep Study for Video】 Import local videos and study courses, lectures, and interviews as deeply as documents. DoCube can read embedded subtitles and, on supported devices, generate subtitles for videos that do not have them. Search subtitles; switch between original, translated, and bilingual views; annotate subtitles; use chapter outlines, playback speeds, and A/B looping. Open a search result, annotation, or chapter to return to the exact moment, turning video into knowledge you can retrieve, connect, and review. 【Multi-Tab Reading】 Open multiple documents and videos in tabs, just like a browser, and switch quickly between materials. Read a paper, compare references, watch a course, or return to where you left off without losing context. 【Annotations and Notes in Context】 Use highlights, underlines, strikethroughs, quotations, links, and Markdown notes directly on source text or at a precise location in video subtitles. Your thinking stays connected to its context. 【Link Materials Together】 DoCube can link an annotation in a document or video to a precise location in another resource. Connect scattered chapters, paragraphs, webpages, video clips, and notes into your own paths through knowledge. 【Search What You Have Read and Watched】 Search not only titles and body text, but also video subtitles, highlights, quotations, links, notes, and cards. Anything you have read, watched, marked, or written can help you find the right material again. 【Keep Reading in Other Languages】 Translate selected text while reading. Some document types support full-document translation and translated exports, while videos support subtitle translation and original, translated, or bilingual display. Read foreign papers, webpages, ebooks, and course videos without constantly switching tools. 【From Annotation to Review】 Turn important content from documents and videos into review cards. Flip cards, mask cards, and review plans bring what you have read and watched back at the right time, instead of letting it disappear after you finish. 【Export and Sync】 Export document content and translations to common formats, including bilingual versions. DoCube is available on iPhone, iPad, and Mac, with iCloud sync and local Wi-Fi transfer. Ideal for: - People who read research papers and professional materials - Learners organizing PDFs, EPUBs, webpages, Markdown, and videos - People who study long-term with course, lecture, and interview videos - Deep readers who want annotations, notes, and review in one loop - Anyone building a personal knowledge base instead of merely collecting files The free version manages up to 5 documents and lets you experience the core reading and knowledge-management workflow. Upgrade to Pro to remove the document limit and build an unrestricted personal library.

Speak naturally, or rewrite text already in the current field. With nothing selected, KeycoBoard rewrites all the text it detects in the field; select part of it to rewrite only that part. You get the result in the tone, length and language you choose, right in the text field. No prompts to write. No copying and pasting between apps. VOICE INPUT YOU CONTROL Choose a style before you speak: more formal for a work update, more relaxed for a chat, or another language entirely. Tap the mic on the KeycoBoard keyboard and talk. Your words come back cleaned up and written in that style, ready to send. Follow progress on the Lock Screen and in the Dynamic Island. REWRITE WITH SLIDERS Set the sliders and tap Apply. With nothing selected, KeycoBoard rewrites all the text it detects in the current field. Select part of it, and only that part changes. Six dimensions give you 9,375 combinations: - Length: from a short summary to a fuller version - Depth: from plain words to expert terms - Tone: from casual to formal - Emotion: from neutral to enthusiastic - Emoji: from none to plenty - Structure: keep it conversational or turn it into a numbered list TRANSLATE IN PLACE Translate all the text detected in the current field, or select just the part you need. You can also speak in your own language and get text in another. Supported languages: English, Spanish, French, German, Italian, Chinese, Japanese, Korean, Russian and Cantonese. Reorder or hide languages in Settings. KNOWS WHAT YOU'VE ALREADY WRITTEN KeycoBoard uses the text already in the field as context, so formatting and wording fit what came before. Keep talking or writing without explaining the background again. WORKS WHERE YOU TYPE Use it in messaging, email, notes and most other apps with a text field. Tap the globe key to switch to KeycoBoard, and tap it again to go back to your usual keyboard. YOUR HISTORY STAYS ON YOUR DEVICE Your generation history, including text, results and voice recordings, is saved on your device. Delete it anytime or set automatic cleanup. FREE AND PRO The free plan includes 30 uses a month, shared across voice input and base-model rewriting and translation. KeycoBoard Pro includes: - Unlimited voice input, plus rewriting and translation with base models - Up to 100 advanced-model rewrites a month - Custom rewrite instructions - Early access to new features Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your App Store account settings. PERMISSIONS AND PRIVACY AI features need "Allow Full Access" so the keyboard can connect to the network. KeycoBoard uses the text in the current field to process your request. Requests are handled by third-party AI providers under their own policies. Our Privacy Policy explains how text and audio are processed. Privacy Policy: https://www.keycoboard.com/privacy Terms of Use: https://www.keycoboard.com/terms