Spark Read vs SwiftRead
SwiftRead lives in your browser and reads Kindle books. Spark Read works offline, without an account, for a fraction of the price.
Feature comparison
| Spark Read | SwiftRead | |
|---|---|---|
| Chrome / Edge extension | No | Yes |
| iOS app | Yes | Yes |
| Android app | Yes | Yes |
| Web app | Yes — no account needed | Yes — sign-in required |
| Works offline | Yes — documents stored on your device | No — “Internet required for use” (store listings) |
| PDF / EPUB | Yes | Yes, including scanned PDFs (OCR) |
| Word (DOCX) | Yes | Not listed |
| Kindle Cloud Reader / Libby | No | Yes |
| Web articles | Paste a URL — cleaned with Readability | Any page, via the extension or a URL |
| Reading modes | One word at a time (RSVP), 1–5 words per flash | RSVP, paced highlighting, Spotlight; up to 6 words at once |
| Focus point | Focal letter (ORP) in red | “Stage” bracket or “Ticks” marker |
| Pauses at punctuation | Automatic — longer at sentences and clauses | Adjustable for commas, sentences, paragraphs, numbers, long words |
| Text-to-speech | No | Yes — 90+ languages |
| AI features | AI condensing — Claude, GPT, Gemini, Grok, DeepSeek (Pro/Lifetime) | AI section summaries (3 a day free, unlimited on PRO) |
| Bionic-style focus mode | Yes | Not listed |
| Library + reading-position sync | Yes — optional sign-in | Yes — with an account |
| Sign-in options | Apple or email magic link | Google, Apple, email code or password |
| Reading analytics | Streaks and stats; CSV export (Pro/Lifetime) | Speed shown when paused; completion cards |
| Themes | Light, dark, system | Light, Dark, Warm, Calm, Matrix + custom |
Pricing comparison
Free tier
Monthly
Annual
Lifetime
Full reader, all formats, 5 cloud documents
$3.99/mo
$29.99/yr
$44.99 one-time
Free within daily limits on processed pages, narration and AI summaries
$19.99/mo (US app stores)
$119.99/yr (also $44.99 a quarter)
Not currently offered
SwiftRead details checked on against swiftread.com; SwiftRead help center; SwiftRead on the App Store; SwiftRead on Google Play; SwiftRead on the Chrome Web Store. Prices are in US dollars and change often; check before you buy. Spot something out of date? Tell us.
Where Spark Read pulls ahead
Reads offline
Spark Read stores and parses documents on your device, so it works on a plane or underground. SwiftRead’s app store listings say an internet connection is required.
No account needed
Open Spark Read in a browser or the app and start reading. Signing in is optional and only adds sync. SwiftRead’s web reader requires an account.
About a fifth of the price
Spark Read Pro is $3.99 a month or $29.99 a year, and Lifetime is $44.99 once. SwiftRead PRO is $19.99 a month or $119.99 a year on the US app stores.
Word documents and a focal letter
Spark Read opens Word files alongside PDF, EPUB, Markdown and text, and marks the letter your eye should land on in red. SwiftRead uses a bracket-style marker instead.
When SwiftRead is the right pick
If you mostly read in Chrome or Edge, want to speed-read Kindle or Libby books, need OCR for scanned PDFs, or want text-to-speech alongside the visual reader, SwiftRead does things Spark Read doesn’t, and it is the more established product. Spark Read is the better pick for offline reading, Word files, no-account use and a much lower price.
Frequently asked
Is SwiftRead free?
SwiftRead has a free tier with daily limits on processed pages, narration and AI summaries. PRO costs $19.99 a month, $44.99 a quarter or $119.99 a year on the US app stores. Spark Read’s reader, every import format and 5 cloud documents are free; Pro is $3.99 a month or $29.99 a year, and Lifetime is $44.99 once.
Does SwiftRead work offline or without an account?
Its app store listings say an internet connection is required, and its web reader needs you to sign in. Spark Read works offline and without an account.
Can Spark Read open Kindle books?
No. Spark Read imports PDF, EPUB, Word, text, Markdown and article URLs, but not DRM-protected Kindle or Libby books. If those are your main source, SwiftRead supports both.
Is there a lifetime plan?
Spark Read Lifetime is $44.99 one-time. SwiftRead’s current plans are monthly, quarterly and annual; it still honours lifetime licences bought before February 2026.
Read everything. Faster.
Free, cross-platform, no account required. Try Spark Read in the browser or install the mobile app.