Speed Leaf vs Speed Read by YComplex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Speed Leaf
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Speed Leaf is a focused reading app that helps you read faster using Rapid Serial Visual Presentation (RSVP). Instead of scanning lines of text, words are displayed one at a time at a fixed point on screen - reducing eye movement and helping you absorb content more efficiently. Import your own PDFs and EPUBs, set your preferred speed from 100 to 800 words per minute, and start reading. The app highlights the Optimal Recognition Point (ORP) in each word so your brain can process text faster with less effort. Whether you're working through articles, reports, books, or study materials, Speed Leaf keeps you in flow without distractions. Features: - RSVP word-by-word display with ORP highlighting - Adjustable reading speed (100–800 WPM) - PDF and EPUB import - Sentence context bar showing your position in each sentence - Browse mode to scan through full text and jump to any point - Reading statistics with words read, time tracked, and average WPM - Per-document progress saving and speed preferences - Clean, minimal interface designed for focus - 3 free document imports, then a one-time unlock for unlimited
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Speed Read by YComplex at none against Speed Leaf's 1. Speed Read by YComplex also leads on iOS requirement (15.1 vs 26.2). On price, ads 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. Speed Leaf sells 1 one-off in-app purchase. Speed Read by YComplex asks for nothing beyond the download.
| Parameter | Speed Leaf | Speed Read by YComplex |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | ANDREW DAVID SAWYER | YComplex Ltd |
In-app purchases
Speed Leaf
- Unlimited Imports$2.99
Speed Read by YComplex
No in-app purchases









