# Spark Read

> RSVP speed reading app — read PDFs, EPUBs, articles, and ebooks one word at a time, at up to 1000 WPM, on iOS, Android, and web.

Spark Read is a free, offline-first RSVP (Rapid Serial Visual Presentation) reader with ORP (Optimal Recognition Point) highlighting, intelligent sentence pacing, AI document condensing, cross-device cloud sync, and reading analytics.

## Who it's for
- Readers who want to get through documents faster, at a pace they control
- Students, researchers, professionals with heavy reading loads
- People who find a single, fixed focus point easier to follow than lines of text
- Anyone who reads across multiple devices and wants a synced library

## What the research says
- The average adult reads non-fiction silently at about 238 WPM (Brysbaert, 2019): https://doi.org/10.1016/j.jml.2019.104047
- At ordinary speeds, RSVP comprehension is similar to page reading; it falls as speed rises (Rayner et al., 2016): https://doi.org/10.1177/1529100615623267
- Going back over text supports comprehension (Schotter, Tran & Rayner, 2014): https://doi.org/10.1177/0956797614531148 — Spark Read pauses at sentence and clause boundaries and rewinds 10 words with one tap.

## Key pages
- App / homepage: https://www.spark-read.app/
- Comparisons hub (speed reading apps compared): https://www.spark-read.app/spark-read-vs.html
- vs Spritz: https://www.spark-read.app/spark-read-vs-spritz.html
- vs SwiftRead: https://www.spark-read.app/spark-read-vs-swiftread.html
- vs Reedy: https://www.spark-read.app/spark-read-vs-reedy.html
- vs Spreeder: https://www.spark-read.app/spark-read-vs-spreeder.html
- vs Outread: https://www.spark-read.app/spark-read-vs-outread.html
- vs AccelaReader: https://www.spark-read.app/spark-read-vs-accelareader.html
- vs BeeLine Reader: https://www.spark-read.app/spark-read-vs-beeline-reader.html
- vs Bionic Reading: https://www.spark-read.app/spark-read-vs-bionic-reading.html
- Privacy policy: https://www.spark-read.app/privacy.html
- Terms of use: https://www.spark-read.app/terms.html

## Pricing
- Free: Full RSVP reader, all import formats, ORP highlighting, focus mode, reading analytics, 5 cloud documents — no account required
- Pro: $3.99/month or $29.99/year (save 37%) — 50 cloud documents, AI document condensing (Claude/GPT/Gemini/Grok/DeepSeek), CSV analytics export, priority support
- Lifetime: $44.99 one-time — unlimited cloud documents, all future features forever

## Supported file formats
PDF, EPUB, DOCX, TXT, Markdown, web URLs (via Mozilla Readability), manual text paste, native share-sheet intake (iOS/Android)

## Platform availability
- iOS (native app via Capacitor)
- Android (native app via Capacitor)
- Web (spark-read.app — full PWA, installable, offline-capable)

## Key features
- RSVP display at 100–1000 WPM with adjustable chunk size (1–5 words)
- ORP highlighting: red focus-point character for fastest word recognition
- Intelligent sentence pacing: pauses at punctuation boundaries
- Focus mode: optional bionic-style bolding of word starts
- Offline-first: documents stored locally in IndexedDB
- Cloud sync: library and reading position via Supabase (opt-in)
- AI document condensing: summarize long PDFs before reading
- Reading analytics and streaks; CSV export (Pro/Lifetime)
- Sign in with Apple or email magic link; no password required