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 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 flawless 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.

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 cloud AI with your own Claude or Gemini API key for advanced world-building analysis and the full interactive visual Relationship Map. Cloud AI runs entirely on remote servers so there are no device RAM requirements -- any Android phone can use it. One-time purchase, no recurring fees.

Built for web novels, light novels, xianxia, LitRPG, and massive fantasy epics.

Requires 8GB RAM or more for local AI models. Pro users on cloud AI have no device requirements.