Comparison

KMate vs Common Reader

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

Head to head
About

KMate

Organize and review your Kindle highlights, notes, and vocabulary. Study smarter with flashcards, track your progress with statistics, and export your content in various formats. Personalize your reading experience with custom themes and fonts.

Highlights
  • Import Kindle highlights and notes
  • Flashcard study mode
  • Progress tracking and statistics
  • Customizable themes and fonts
  • Export notes as Markdown, PDF, TXT, or Anki
  • iCloud Sync
Features
Read full description

KMate brings your Kindle and Kobo highlights, notes, and vocabulary together on iPhone and iPad—making it easy to organize, revisit, and review what you read. Use it on its own or import data from KMate for Mac and Windows. Import & Sync - Import via USB from compatible Kindle and Kobo devices, or from notes and vocabulary files - Import notes from the Kindle app and highlights and notes from Amazon Kindle Cloud - Sync notes, vocabulary, and learning progress across Mac, iPhone, and iPad with iCloud Organize & Read - Browse, search, and edit by book; filter by learning status, source, or year - Choose custom book covers from Photos or Files - Track your learning progress and explore vocabulary in its original context Dictionaries & Lookup - Double-tap a word to look it up using MDX, StarDict, MOBI/AZW/PRC, or text dictionaries - View original dictionary formatting, images, and pronunciation audio Flashcards & Review - Hide highlighted passages, recall them from your notes, then reveal the text - Reveal vocabulary examples and definitions step by step, with randomized review - Mark your learning status and explore your reading history through stats and heatmaps Export & Personalize - Export to TXT, Markdown, PDF, Kindle My Clippings.txt, and Anki vocabulary files - Copy, share, and print; choose your reading theme, font, and text size Free & Pro The free version includes iCloud sync, Kindle/Kobo/Amazon imports, unlimited browsing and flashcard review, plus TXT and Anki exports. Pro unlocks the e-ink theme, font management, quick lookup with custom dictionaries, full statistics and insights, plus Markdown, PDF, and Kindle clippings exports and printing. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Common Reader

This app offers a unified reading and AI-powered analysis experience for various ebook formats. It allows users to ask questions about book content, automatically organize their library, and sync across multiple devices. Privacy is a core focus, with no proactive data collection.

Highlights
  • Supports multiple ebook formats (epub, azw3, mobi, txt, md, pdf)
  • AI-powered questions about book content
  • Automatic library organization with generative AI
  • Cloud sync (iCloud, OneDrive, WebDAV)
  • Fast full-library search
  • Unified cross-platform interface
Read full description

- UI and interactions follow a carefully unified cross-platform logic and are built with native technologies for iOS and iPadOS. - Supports many ebook formats, including epub, azw3, mobi, txt, markdown, and pdf. - Supports nearly every ebook rendering feature, including vertical writing and RTL. - Listen with built-in system voices or AI voice models. - A high-performance, Metal-powered simulated page-turn engine offers an unparalleled visual experience. - Deeply integrates AI features for asking questions about books and automatically organizing your library with generative AI. - Supports cloud sync through iCloud, OneDrive, Google Drive, WebDAV, and more. - Provides fast full-library search across books, authors, tags, notes, highlights, and original text. - The app does not proactively collect any of your information. Your data is only processed by the model and cloud storage providers you trust.

Screenshots

KMate4 screens
Common Reader4 screens

Verdict

The call

The clearest difference is update cadence: Common Reader at every 2 days against KMate's every 2 weeks. KMate's advantage is review sentiment (100% vs 80%) and iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and monetization model 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. KMate sells 3 in-app purchases, starting at $0.99 per month and Common Reader sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KMate ships an update every 2 weeks, Common Reader every 2 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
KMate versus Common Reader: the parameters behind the verdict, then further details
ParameterKMateCommon Reader
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better26.0
Further details — not scored
Size14 MB118 MB
Age rating4+4+
Developer军 黄天宇 高

Customer experience

KMate

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Common Reader

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

3 purchases

KMate

Subscriptions2
  • KMate Pro Monthly$0.991 Month
  • KMate Pro Yearly$6.991 Year
One-time1
  • KMate Pro Lifetime$14.99
5 purchases

Common Reader

One-time5
  • 1 Cup of Coffee$4.00
  • 2 Cups of Coffee$8.00
  • Lifetime Unlock$9.99
Show 2 more
  • 4 Cups of Coffee$16.00
  • Many coffees$32.00

Questions

Is KMate free?
KMate is free to download, with in-app purchases available.
Is Common Reader free?
Common Reader is free to download, with in-app purchases available.
Do KMate or Common Reader have ads?
Neither KMate nor Common Reader shows ads.
Which is updated more often, KMate or Common Reader?
KMate ships an update every 2 weeks, and Common Reader every 2 days. Most recently, KMate was updated on October 24, 2026 and Common Reader on October 24, 2026.

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