Best RSVP Speed Reading Apps in 2026 (Compared)
5 min read · Updated 2026-09-16 · Readable
An honest comparison of RSVP speed reading apps (Readable, Spreeder, Reedy, SwiftRead, and Outread) covering formats, pricing, platforms, and AI features.
What to look for in an RSVP app
All RSVP readers do the same core thing: flash words at a fixed point. The differences are everything around the flash: which file formats import cleanly, whether there's an optimal-recognition-point (ORP) highlight, how pacing controls work, whether your library syncs, and increasingly, what AI can do with your documents.
The comparison
| App | Formats | Platforms | ORP highlight | AI features | Price |
|---|---|---|---|---|---|
| Readable | PDF, EPUB, DOCX, TXT, URL | Web (any OS) | Yes | Summaries, chapters, Q&A, quizzes, recaps | Free; Pro $5.99/mo; Max $9.99/mo |
| Spreeder | Paste text, some formats | Web, iOS | Yes | None | Free tier; paid plans |
| Reedy | EPUB, TXT, links | Android, Chrome | Yes | None | Free; paid unlock |
| SwiftRead | Paste text, URL | Web, Chrome | Yes | None | Free; paid tier |
| Outread | Articles, EPUB | iOS | Yes | None | Subscription |
This is our honest assessment - we're obviously biased since we make Readable, but the table is factual: check each product's current feature set before deciding, as these apps update frequently.
Where Readable fits
Readable's pitch is being the full reading environment rather than a flash display: a real document library (folders, tags, favorites, queue), cloud sync across devices, the deepest format support in the category, and an AI layer no other RSVP app currently matches: document summaries, automatic chapter parsing, ask-your-document Q&A, comprehension quizzes, and recaps of what you've already read.
The RSVP engine itself supports ORP highlighting, adjustable WPM, multi-word chunking, adaptive speed that eases off on complex sentences, and pauses at sentence boundaries. Preferences, themes, and fonts are all tunable.
Where other apps are better
- Native mobile: Reedy (Android) and Outread (iOS) are native apps - Readable is web-only and wants a larger screen.
- Browser extension reading: Reedy's Chrome extension flashes selected page text in-place; Readable imports URLs into your library instead.
- Simplicity: SwiftRead is lighter-weight if all you want is paste-and-read with zero extras.
- Offline-first: mobile apps cache everything; Readable works best with a connection for sync and AI features.
How to choose
- Reading real documents (PDFs, ebooks, articles) end-to-end: Readable.
- Flashing web page selections in-browser: Reedy's extension.
- Reading on a phone with a native app: Reedy or Outread.
- Just testing whether RSVP works for you, free, right now: Readable's guest mode - no account, upload and go.
If you're new to RSVP entirely, read our guide on what RSVP speed reading is first - the technique matters more than the app.
FAQ
- What is the best RSVP speed reading app?
- For document reading with AI features, Readable leads - it's the only RSVP app with summaries, chapter parsing, and comprehension quizzes. For native mobile, Reedy (Android) and Outread (iOS) are strong. For in-browser text flashing, Reedy's Chrome extension is purpose-built.
- Is there a free RSVP reader?
- Yes, Readable works free as a guest (no account) and has a free tier with cloud sync. Spreeder, Reedy, and SwiftRead also have usable free tiers.
- What happened to Spritz?
- Spritz popularized ORP-highlighted RSVP in 2014 but faded as a consumer product; the technique it popularized lives on in apps like Readable, Spreeder, and Reedy that use the same focal-letter approach.
- Do RSVP apps work on phones?
- Native apps (Reedy, Outread) work well on phones. Readable is a web app optimized for tablets and desktops - its RSVP display needs a reasonably sized screen, though the library syncs anywhere.
Try it on your own documents
Upload a PDF, EPUB, or DOCX, or paste a URL, and start speed reading free in your browser.
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