Import01
Bring your own books
Kairo imports DRM-free EPUB and MOBI files from Android storage, extracts metadata and covers, then keeps the library local.
EPUB + MOBI
RSVP reading app for Android
Kairo
A calm RSVP reading app for Android, built for speed reading without chaos. Import DRM-free EPUB or MOBI books, read normally, then shift into focused word-by-word momentum.
- Formats
- EPUB / MOBI
- Modes
- Reader + RSVP
- Pacing
- Adaptive
Reader workflow
From library to high-speed focus, the path stays short.
Reading path01
Import
EPUB + MOBI
Import
Bring your own books
Reader02
Scroll when you want context
A quiet long-form reader gives chapter navigation, page-aware progress, bookmarks, images, and a clean handoff into RSVP.
Resume state
RSVP03
Accelerate without visual noise
Words stay anchored around the optimal recognition point, with adaptive timing for length, syllables, punctuation, clauses, and long words.
ORP guided
Control04
Profiles for different kinds of reading
Balanced, Chill, Narrative, Focus, Flow, Sprint, and Study profiles make speed reading feel tuned rather than forced.
7 profiles
Focus05
Low-distraction by design
Focus mode, brightness controls, typography, low-glare themes, and persistent preferences keep the session calm.
Local prefs
About the project
Speed without the agitated feeling.
Most reading apps treat RSVP as a side feature. Kairo starts with the RSVP reading loop and builds outward: import a book, read in a quiet scrollable reader, then launch speed reading from the exact place you are already focused.
The engine shapes timing around punctuation, sentence flow, long words, phrase rhythm, page breaks, and readability floors. The result is a focused reader for people who want forward motion without turning reading into visual stress.
Under the hood
Native Android, local-first reading state, tuned RSVP pacing.
Kairo is built as a native Kotlin app with Compose surfaces, local persistence, parser work for real-world ebooks, and language-aware tokenization foundations for Latin, CJK, and RTL text flows.
Kotlin 2.1 Android app
Jetpack Compose UI
Room + DataStore persistence
EPUB spine and MOBI parsing
Language-aware tokenization
CJK and RTL foundations
ORP guide controls
Page and paragraph pause shaping
Speed bands
300 to 1,800+ WPM controls
Pause shaping
Paragraph and page-break breathing
Readability
Length, syllable, rarity, and complexity timing
Reader state
Progress, bookmarks, preferences
RSVP profiles
Choose the rhythm for the material.
Profiles tune cadence, punctuation, difficulty holds, and ramping without requiring every reader to start from raw sliders.
Balanced
Natural cadence with clear punctuation breathing
Chill
Slow, spacious pacing for relaxed reading
Narrative
Expressive flow for fiction and inner voice
Focus
Sharper rhythm without dropping punctuation cues
Flow
Continuous mid-fast movement with smooth transitions
Sprint
Very fast, with readable pause structure
Study
Deliberate timing for dense material
Calm speed reading
For readers searching for an RSVP reading app.
Kairo is for RSVP reading app searches, Android RSVP reader workflows, speed reading practice, calm reader sessions, EPUB speed reading, MOBI ebook import, and focus reading where the experience stays sparse, readable, and under the reader's control.
RSVP reading appRSVP readingAndroid RSVP readerspeed readingspeed reading appcalm readercalm speed readingfocus readingAndroid ebook readerORP highlightingEPUB speed readingEPUB readerMOBI reader
Reading guides
More ways to find the right RSVP reader.
Focused pages cover the searches readers actually use: RSVP reading app, Android RSVP reader, EPUB speed reading, MOBI import, ORP highlighting, and calm speed reading.
RSVP reading app
RSVP reading app
Kairo turns EPUB and MOBI books into calm RSVP reading sessions on Android, with ORP highlighting, adaptive pacing, bookmarks, and progress.
Read the guideAndroid reader
Android RSVP reader
Use Kairo as an Android RSVP reader for DRM-free EPUB and MOBI books, with local progress, bookmarks, focus mode, and calm profiles.
Read the guideEPUB speed reading
EPUB speed reading
Speed read DRM-free EPUB books on Android with Kairo's RSVP mode, adaptive pacing, chapter context, bookmarks, and reading profiles.
Read the guideORP highlighting
ORP highlighting
Kairo uses ORP highlighting to anchor words around the optimal recognition point, making RSVP speed reading calmer and easier to follow.
Read the guideCalm speed reading
Calm speed reading
Kairo is a calm Android speed reading app with RSVP mode, low-glare themes, ORP guidance, adaptive pacing, and focused reader profiles.
Read the guideBook formats
MOBI and EPUB
Read DRM-free MOBI and EPUB books on Android with Kairo, then switch into RSVP speed reading with bookmarks, progress, and ORP guidance.
Read the guideFAQ
Common questions about RSVP reading with Kairo.
Short answers for readers comparing RSVP reading, calm speed reading apps, Android ebook readers, EPUB import, MOBI import, and ORP highlighting.
What is RSVP reading?
RSVP reading shows one word or short text unit at a fixed point, reducing eye movement. Kairo uses RSVP as its main reading mode and shapes timing around punctuation, word length, and sentence flow so speed reading feels calmer.
Is Kairo a speed reading app or an ebook reader?
Kairo is both. It combines a quiet Android ebook reader with an RSVP speed reading mode, so you can import a book, read with normal context, and launch focused word-by-word reading from the same position.
Can Kairo import EPUB and MOBI books?
Yes. Kairo imports DRM-free EPUB and MOBI files from Android storage, extracts chapters, metadata, and covers where available, and keeps reading progress on the device.
Does Kairo use ORP highlighting?
Yes. Kairo anchors words around the optimal recognition point and can show ORP guidance so your eyes have a consistent focus point during RSVP reading.
How does Kairo keep speed reading calm?
Kairo uses adaptive pacing, low-glare themes, focus mode, bookmarks, persistent reader settings, and RSVP profiles for different reading rhythms. The goal is controlled reading momentum rather than frantic word flashing.
Is Kairo available on Google Play?
Yes. Kairo is available on Google Play, and the Android project remains available on GitHub for readers and contributors who want to inspect or improve the app.