Remember Everything
You Read.
Most reading apps focus on vanity metrics—how fast you read, or how many books you accumulate. Lumen is built for those who value depth over speed. It is a minimalist personal sanctuary designed to rescue your favorite insights from slipping away, transforming passive scrolling back into deliberate lifetime knowledge.
Deliberate Knowledge Retrieval.
Spaced Repetition Review
Master core concepts through smart spaced repetition intervals, automatically calculating active review cycles to cement your learning.
Restart & Reread Anytime
Reset individual book completion trackers to start reading from Chapter 1 again without losing past reading time analytics or history.
Zen Reader Mode
Immerse yourself in clean typography, structured chapter outlines, customizable font sizes, and chapter summaries designed for deep learning.
Insights & Analytics
Anxiety-free dashboards displaying reading streaks, average daily minutes, total hours learned, and lifetime finished books.
Habits Over Skimming
Build sustainable routines. Set small daily reading targets (like 10 minutes) and watch your habit consistency flame burn without arbitrary pressure.
100% Secure & Offline Sanctuary
Your intellectual data is safe on your physical device. Runs completely offline with single-click manual backups and zero remote tracking.