Sutra vs Earlo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Earlo
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Make an audiobook of your next read. Redefining Text To Speech, All Offline. Earlo turns your books, documents and research papers into a personal listening library. Speech is generated on your device, so you can read and listen to saved documents offline without an Earlo account. Bring your own reading Import EPUB, PDF, TXT, Markdown, HTML, RTF and DOCX files. Paste text, save a webpage, or recognize text in photos and scanned pages. Review an import before adding it to your library. Earlo does not remove DRM. Read and listen together Follow the spoken word, tap to move to a passage, and return to narration after browsing. Switch between readable text and the original PDF. Adjust reading settings, use the full-screen reader, and resume from your saved position. Listen your way Choose a voice, adjust playback speed, set a sleep timer and build a listening queue. Add pronunciation corrections and choose passages to omit from narration while keeping the original text intact. Export a book, chapter, page range or selected passage as MP3 audio. Keep useful ideas close Organize your library into collections, search titles and document text, and save notes and bookmarks. Export notes as Markdown and research citations as RIS or BibTeX. Daily streaks and listening activity help you see your reading routine. Make time for research Find papers by DOI or arXiv identifier, or import PDF attachments from your Zotero library. Research reading can skip recognized citations and reference lists. Complex equations, tables and scanned text may need review against the original document. More languages, on your device English narration is joined by preview voices for Spanish, French, German, Hindi, Italian, Brazilian Portuguese, Japanese and Mandarin Chinese. Automatic language detection can switch voices between supported-language paragraphs. The interface is available in ten languages, including Arabic with right-to-left layout. Interface language does not translate your documents or add Arabic narration. Built around your Apple devices Use Earlo on iPhone and iPad, with optional private iCloud sync. Control iPhone playback and save bookmarks from the paired Apple Watch companion. Siri, Shortcuts, widgets and Lock Screen controls keep listening within reach. Saved reading and narration work offline. Web imports, research lookups, Zotero and iCloud sync require an internet connection. Apple Watch playback depends on the paired iPhone. Made by Boston Research Journals, USA.
Screenshots
Verdict
The clearest difference is in-app purchases: Earlo at none against Sutra's 4. Sutra's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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
Both are free to download. Sutra sells 4 one-off in-app purchases. Earlo asks for nothing beyond the download.
Sutra ships an update weekly, Earlo every 9 days. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.
| Parameter | Sutra | Earlo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (17 ratings) — better | — |
| Positive reviews | 73.3% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 42 MB | 723 MB |
| Age rating | 4+ | 4+ |
| Developer | Koustav Dasgupta | Boston Research Journals |
In-app purchases
Sutra
- Small Tip$1.99
- Medium Tip$2.99
- Large Tip$4.99
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- Sutra Pro$6.99
Earlo
No in-app purchases









