Comparison

Chek vs Sutra

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

Head to head
About

Chek

Features
Read full description

Chek is a reader for your books and comics, wherever you keep them. READ YOUR OWN FILES Open EPUB, PDF, CBZ and CBT comics, MOBI, AZW3, FictionBook, plain text and Markdown files from Files or the share sheet. Each book opens where you left off. No account needed, and everything works offline. CONNECT YOUR LIBRARY SERVER Connect a Chek server you run to read its libraries on all your devices. Your reading place follows you between iPhone and iPad. Follow a series to hear when a new chapter is out, and download chapters to read offline. TRY IT FIRST Tap Try the Demo to browse a sample library of public-domain and Creative Commons books and comics, with no setup. BUILT FOR READING Paged and scrolling layouts, right-to-left manga reading, themes, and a reader built for both books and comics. PRIVATE Chek has no ads, analytics or tracking. Your files stay on your device, and server sign-ins go only to servers you add.

About

Sutra

Access your entire book collection from various sources in one beautiful app. Enjoy a customizable reading experience with synced progress, bookmarks, and highlights across devices. Organize your library with series info, search, and collections.

Highlights
  • Connect Kavita, Calibre, and OPDS servers
  • EPUB and PDF reading with page-curl effect
  • Rich typography and reading themes
  • iCloud sync for progress, bookmarks, and highlights
  • Offline downloads
  • Highlighting and search functionality
  • Series grouping and collections
Features
Read full description

Sutra is a warm, thoughtful home for every book and comic you love. Bring together your self-hosted library, your manga, your classic EPUBs, and those “just one more chapter” reads in one beautifully calm reader. Connect Kavita, Komga, or Calibre; explore any OPDS catalogue; or discover a new favourite from Project Gutenberg and Standard Ebooks. READ YOUR WAY • Enjoy EPUB, PDF, CBZ, MOBI, fixed-layout comics, and manga in one place • Move through comics panel by panel, or take in the whole page • Read right-to-left manga and beautiful iPad two-page spreads • Make the page yours with fonts, text size, spacing, themes, auto-scroll, page turns, and Sutra-only brightness control A LIBRARY THAT FEELS LIKE HOME • Browse dedicated Series and Collection views, with Favorites always close by • Sort by Recently Read, Title, Author, or Date Added while staying in a familiar cover grid • Let Sutra recover missing Calibre series details and keep your library beautifully organised • Pick up where you left off with dependable progress and finished-book sync for Kavita and Komga BUILT FOR SELF-HOSTERS • Connect Kavita, Komga, Calibre, Grimmory, or another OPDS server • Stream comic pages from Kavita and Komga when available, or download for offline reading • Keep your highlights and reading progress with you across your Apple devices Sutra is free to enjoy for EPUB and PDF reading, with no ads and no subscription. Unlock unlimited CBZ, MOBI, and Komga reading once, and keep it forever.

Screenshots

Chek4 screens
Sutra4 screens

Verdict

The call

The clearest difference is in-app purchases: Chek at none against Sutra's 4. Sutra's advantage is update cadence (weekly vs monthly) and iOS requirement (17.0 vs 26.0). On price, ads and device support 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. Sutra sells 4 one-off in-app purchases. Chek asks for nothing beyond the download.

UpkeepUpdate frequency

Chek ships an update monthly, Sutra weekly. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
Chek versus Sutra: the parameters behind the verdict, then further details
ParameterChekSutra
PriceFreeFree
Rating—4.3 (17 ratings) — better
Positive reviews—73.3% of reviews
Number of ratings—17 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size5 MB42 MB
Age rating17+4+
DeveloperAryakumar JhaKoustav Dasgupta

In-app purchases

None

Chek

No in-app purchases

4 purchases

Sutra

One-time4
  • Small Tip$1.99
  • Medium Tip$2.99
  • Large Tip$4.99
Show 1 more
  • Sutra Pro$6.99

Questions

Is Chek free?
Chek is free to download, with no in-app purchases.
Is Sutra free?
Sutra is free to download, with in-app purchases available.
Do Chek or Sutra have ads?
Neither Chek nor Sutra shows ads.
Which is updated more often, Chek or Sutra?
Chek ships an update monthly, and Sutra weekly. Most recently, Chek was updated on October 25, 2026 and Sutra on October 25, 2026.

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