DoCube vs Text Replace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoCube
This app transforms reading into knowledge retention with features like multi-tab browsing, precise document navigation, and versatile annotation tools. It supports various formats and converts highlights into flashcards for effective memorization and review.
- Multi-tab reading for multiple documents
- Precise document positioning and history navigation
- Support for PDF, EPUB, Markdown, and web pages
- Six annotation tools including highlights and notes
- Cross-document linking for knowledge networks
- Automatic flashcard creation from highlights
- AI-enhanced card generation
Read full descriptionHide full description
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.
Text Replace
This tool allows you to edit text directly on any webpage, making content dynamic and editable in real-time. It enables you to modify website text instantly, transforming static pages into interactive experiences.
- Replace text anywhere on a website
- Web Edit Mode for direct text editing
- Make webpages editable
- Real-time content modification
Read full descriptionHide full description
Feature: 1. Replace Text Anywhere on the Website 2. 「Web Edit Mode」: Make Webpage Editable and Edit Text Directly
Screenshots
Verdict
The clearest difference is in-app purchases: Text Replace at none against DoCube's 1. Text Replace also leads on rating (5.0 vs 4.6) and iOS requirement (15.0 vs 17.0). DoCube's advantage is ratings volume (11 vs 2). On price, review sentiment, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. DoCube sells 1 one-off in-app purchase. Text Replace asks for nothing beyond the download.
Text Replace holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: DoCube has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
DoCube ships an update every 3 weeks, Text Replace every 2 weeks. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.
| Parameter | DoCube | Text Replace |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (11 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 — better | 2 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 91 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | 巍 赵 | 柯铃 靖 |
Customer experience
DoCube
Text Replace
In-app purchases
DoCube
- Full-platform Professional Edition$34.99
Text Replace
No in-app purchases









