Comparison

Sutra vs Calimob

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

Head to head
About

Sutra

Organize and read all your eBooks and comics in one beautiful, calm reader. Connect to self-hosted libraries, explore online catalogs, and customize your reading experience with various display options. Enjoy seamless progress syncing across devices.

Highlights
  • Unified reader for EPUB, PDF, CBZ, MOBI, comics, and manga
  • Connect to Kavita, Komga, Calibre, and OPDS servers
  • Customizable reading experience (fonts, themes, layout)
  • Organized library with Series and Collection views
  • Progress and finished-book sync across devices
  • Offline reading support for comics
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.

About

Calimob

Features
Read full description

Your entire Calibre library, in your pocket. CaliMob syncs your Calibre ebook library to your phone or tablet — with full support for EPUB, PDF, CBR/CBZ/CB7, MOBI, AZW3 and audiobooks. Read, annotate, and pick up exactly where you left off. FORMATS & READERS • EPUB reader with custom fonts, themes, margins and text-to-speech (TTS) • Comic and manga reader with full-screen mode (CBR, CBZ, CB7) • PDF viewer with reflow support • MOBI and AZW3 reader — no conversion needed • Audiobook player (MP3, M4B, AAC, OGG, FLAC) SYNC YOUR LIBRARY • Connect to Calibre's own Content Server over Wi-Fi • Google Drive, Dropbox, OneDrive — use your existing cloud storage • WebDAV, FTP and SFTP for self-hosted setups • OPDS catalog browsing (Calibre-Web, Kavita, Komga and more) FIND ANY BOOK INSTANTLY • Filter by author, series, tag, publisher or format • AI-powered semantic search across your entire collection • Multiple libraries with independent settings DESIGNED FOR READING • Dark mode with true black OLED theme • Reading progress tracking with statistics • Highlights, bookmarks and notes • Offline reading — download books for reading anywhere • Customizable reading experience (fonts, spacing, colors) • Import books from any app via share intent PRIVATE & SECURE • Your books stay on your device and your cloud — no third-party servers • No ads, no tracking CaliMob is built for Calibre users who want their library everywhere. Whether you read novels, comics, manga, technical PDFs or listen to audiobooks — CaliMob handles it all. Questions or feedback? Visit caliwebapp.com/help

Screenshots

Sutra4 screens
Calimob4 screens

Verdict

The call

The clearest difference is in-app purchases: Calimob at none against Sutra's 4. Calimob also leads on update cadence (every 4 days vs every 8 days) and iOS requirement (15.6 vs 17.0). 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. Calimob asks for nothing beyond the download.

UpkeepUpdate frequency

Sutra ships an update every 8 days, Calimob every 4 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Sutra versus Calimob: the parameters behind the verdict, then further details
ParameterSutraCalimob
PriceFreeFree
Rating4.3 (18 ratings) — better—
Positive reviews73.3% of reviews—
Number of ratings18 — better—
Update frequencyEvery 8 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size42 MB113 MB
Age rating4+4+
DeveloperKoustav DasguptaFrada SRL

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
None

Calimob

No in-app purchases

Questions

Is Sutra free?
Sutra is free to download, with in-app purchases available.
Is Calimob free?
Calimob is free to download, with no in-app purchases.
Do Sutra or Calimob have ads?
Neither Sutra nor Calimob shows ads.
Which is updated more often, Sutra or Calimob?
Sutra ships an update every 8 days, and Calimob every 4 days. Most recently, Sutra was updated on November 10, 2026 and Calimob on October 31, 2026.

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