Speed Read by YComplex vs ZapRead
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Speed Read by YComplex
This app helps you read faster by displaying words one at a time using Rapid Serial Visual Presentation. It trains your eyes to stay focused and reduces subvocalization. Import your own content or read web articles directly within the app.
- RSVP reader with focal letter highlighting
- Adjustable reading speed (50-1000 WPM)
- Import EPUB, PDF, TXT, Markdown
- Read web articles via URL
- Chapter navigation
- Customizable fonts and dark theme
- On-device library
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Speed Read uses RSVP (Rapid Serial Visual Presentation) to help you read faster. Words are displayed one at a time with a highlighted focal letter, training your eyes to stay centered and eliminating subvocalization — the habit that slows most readers down. Import your own books, articles, and documents in EPUB, PDF, TXT, or Markdown format. Paste any web URL and the app extracts the article text automatically. Your entire library lives on-device. Features: - RSVP reader with a color-highlighted focal letter for each word - Adjustable speed from 50 to 1,000 words per minute - Two play modes: Play/Pause or Press to Play (hold to read, release to stop) - Chapter navigation for multi-chapter EPUBs - Import documents: EPUB, PDF, TXT, and Markdown files - Read web articles by pasting a URL - 7 monospace font choices including JetBrains Mono, Fira Code, and Courier Prime - Adjustable font size - Reading position saved automatically — pick up where you left off - Pure black dark theme designed for OLED screens - No account required. All data stays on your device.
ZapRead
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Read Faster. Retain More. Train Your Brain. ZapRead uses RSVP (Rapid Serial Visual Presentation) technology to help you read 2-3x faster than normal. Whether you're catching up on articles, reading books, or processing emails, ZapRead makes it effortless. HOW IT WORKS Traditional reading requires your eyes to move across lines of text, which slows you down. ZapRead eliminates this by displaying one word at a time in the same spot. Your eyes stay fixed, and your brain processes words faster. Each word flashes with its focus letter highlighted in red—the letter your eye naturally focuses on. This smart timing helps your brain recognize words instantly. FEATURES • Universal Speed Reading — Paste any text: articles, books, emails, PDFs. Clean, distraction-free reading experience with progress tracking. • Customizable Speed — Adjust WPM (Words Per Minute) from 100 to 1000+. Quick presets: Beginner (200), Average (300), Fast (450), Expert (700). Real-time speed adjustment while reading. • Smart Focus Algorithm — Automatically calculates the optimal focus point. Red letter guides your eye for instant word recognition. Proven to improve reading speed and comprehension. • Privacy First — No account required. Zero data collection. 100% offline - no internet needed. All processing happens on your device. WHO IT'S FOR • Students cramming for exams • Professionals processing reports and emails • Book lovers who want to read more • Anyone with a long reading list • People who want to train their brain THE SCIENCE RSVP technology has been studied since the 1970s and is proven to increase reading speed while maintaining comprehension. By eliminating eye movement and presenting words at your optimal pace, your brain can process information faster. WHY ZAPREAD? • Simple - Paste text and start reading in 2 seconds • Fast - Read at your own pace, from slow to blazing • Beautiful - Clean, dark interface reduces eye strain • Private - Your data stays on your device, period • Offline - No internet connection required NO SUBSCRIPTIONS. NO ADS. NO TRACKING. Download ZapRead today and unlock your brain's reading potential. Read faster. Learn more. Live better.
Screenshots
Verdict
The clearest difference is iOS requirement: ZapRead at 13.0 against Speed Read by YComplex's 15.1. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Speed Read by YComplex | ZapRead |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | YComplex Ltd | Borgo Technologies LLC |
In-app purchases
Speed Read by YComplex
No in-app purchases
ZapRead
No in-app purchases
Questions
Is Speed Read by YComplex free?
Is ZapRead free?
Do Speed Read by YComplex or ZapRead have ads?
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