Comparison

DoCube vs 波子记单

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

波子记单

Features
Read full description

CreatorMate is an order, schedule, and collaboration tracker for content creators. Manage brand deals, contacts, publishing plans, payments, and advance-payment recovery in one focused workflow, so you can spend less time organizing and more time creating.

Screenshots

DoCube4 screens
波子记单4 screens

Verdict

The call

The clearest difference is rating: DoCube at 4.6 against 波子记单's 4.0. DoCube also leads on ratings volume (11 vs 1) and update cadence (every 3 weeks vs every 2 months). 波子记单's advantage is iOS requirement (13.0 vs 17.0). On price, review sentiment, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DoCube sells 1 one-off in-app purchase and 波子记单 sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DoCube holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: DoCube has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

DoCube ships an update every 3 weeks, 波子记单 every 2 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
DoCube versus 波子记单: the parameters behind the verdict, then further details
ParameterDoCube波子记单
PriceFreeFree
Rating4.6 (11 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better1
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size91 MB36 MB
Age rating17+4+
Developer巍 赵国民 谢

Customer experience

DoCube

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

波子记单

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

DoCube

One-time1
  • Full-platform Professional Edition$34.99
3 purchases

波子记单

Subscriptions2
  • 月度会员$1.991 Month
  • 年度会员$12.991 Year
One-time1
  • 永久会员$24.99

Questions

Is DoCube free?
DoCube is free to download, with in-app purchases available.
Is 波子记单 free?
波子记单 is free to download, with in-app purchases available.
Which has better reviews, DoCube or 波子记单?
DoCube is rated higher. DoCube averages 4.6 out of 5 from 11 ratings, while 波子记单 averages 4.0 from 1 ratings.
Do DoCube or 波子记单 have ads?
Neither DoCube nor 波子记单 shows ads.
Which is updated more often, DoCube or 波子记单?
DoCube ships an update every 3 weeks, and 波子记单 every 2 months. Most recently, DoCube was updated on October 6, 2026 and 波子记单 on October 18, 2026.

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