StoryCodex vs Sutra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StoryCodex
This app enhances your reading experience by building a live encyclopedia and visual story map as you progress. It allows you to tap character names for instant profiles and explore relationships without spoilers. Enjoy distraction-free reading and listening with offline capabilities.
- Live encyclopedia of characters and lore
- Spoiler-free visual Story Map
- Instant character profiles on tap
- Offline reading and listening
- Customizable reading views
- Import EPUB, PDF, and text files
- Automatic chapter recaps
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You're on chapter 600. A name appears you half-remember. The wiki would spoil everything. StoryCodex is a smart novel reader that builds a live encyclopedia and visual Story Map of your story as you read. It tracks your progress and only remembers the events you have already reached. Stop choosing between losing track of the plot and getting spoiled by fandom wikis. LISTEN OR READ ANYWHERE Experience a polished core reading environment. Listen to your chapters aloud with high-fidelity neural voices including Supertonic, Kokoro, and Piper. Background playback, lock screen controls, and customizable reading views. No internet connection required. TAP ANY NAME, SEE WHO THEY ARE Tap a character name while reading to instantly view their profile: role, traits, power tier, and key relationships. Pulled strictly from chapters you have already read. Zero spoilers. No wiki rabbit holes. EXPLORE THE STORY MAP See characters, factions, places, and relationships as an interactive visual map. Follow alliances, rivalries, mentors, clans, sects, and shifting connections without exposing future events. The Story Map grows with your reading progress, so it stays useful and spoiler-free. YOUR STORY CODEX As you read, the local AI silently builds and updates your universe. Character profiles track names, aliases, motivations, and power progression. World building maps places, factions, cultivation systems, and items. Arc summaries break the full story into arcs, always spoiler-free. Chapter summaries log every chapter so nothing slips through. The codex carries across volumes, so your encyclopedia grows with the series. PICK UP EXACTLY WHERE YOU LEFT OFF Tap Previously before any chapter for an instant recap: the last few key events and a summary of recent chapters. Like a previously on for your novel. No reread, no spoilers, just back in the story in seconds. LOAD EPUBS OR WEB CHAPTERS Import web novels and light novels via EPUB, PDF, or plain text. Reading a multi-volume series? Save each EPUB as a volume under one series and share the same codex across all books. Paste a chapter URL from any public novel site to start reading and listening instantly. The built-in reader strips ads and clutter for a distraction-free experience. 100% ON-DEVICE. COMPLETELY PRIVATE. Your library and chapters never leave your phone. Local AI handles all analysis. No account, no external servers, no subscription required for core features. STORYCODEX PRO, OPTIONAL AND ONE-TIME For readers who go deep. Unlock advanced world-building analysis and the full interactive visual Story Map. One-time purchase, no recurring fees. Built for web novels, light novels, xianxia, LitRPG, and massive fantasy epics. Requires 6GB RAM or more for local AI models. Pro users on cloud AI have no device requirements. PERFECT FOR: • LitRPG, progression fantasy, cultivation/xianxia, isekai • Epic fantasy with huge casts (noble houses, guilds, sects) • Multi-volume series you read over months or years • Readers who take breaks and need quick recaps
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.
Screenshots
Verdict
The clearest difference is rating: StoryCodex at 5.0 against Sutra's 4.4. Sutra's advantage is ads (none vs shown). On price, ratings volume, update cadence 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
Both are free to download. StoryCodex sells 3 one-off in-app purchases and Sutra sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
StoryCodex holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 14 respectively.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | StoryCodex | Sutra |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 4.4 (14 ratings) |
| Positive reviews | — | 84.6% of reviews |
| Number of ratings | 7 | 14 — better |
| Update frequency | Weekly | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 159 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Bilal ARKAN | Koustav Dasgupta |
Customer experience
StoryCodex
Sutra
In-app purchases
StoryCodex
- Remove Ads$4.99
- Pro Upgrade$4.99
- StoryCodex Pro$9.99
Sutra
- Small Tip$1.99
- Medium Tip$2.99
- Large Tip$4.99
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- Sutra Pro$6.99









