Word Runner vs Synapse
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Word Runner
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WordRunner โ Speed Reader Read faster. Focus deeper. WordRunner brings speed reading to your iPhone using Rapid Serial Visual Presentation (RSVP) - the same technology used by professional speed readers. Words are displayed one at a time in a fixed focal point, eliminating the eye movement that slows most readers down. Features Read EPUB, PDF, and plain text files Adjustable speed from 100 to 900 words per minute Dynamic pacing - automatically slows at punctuation and long words Optimal Recognition Point (ORP) highlighting to anchor your focus Auto-saves your progress so you never lose your place Jump to any position in your book with full-text search Clean, distraction-free dark interface designed for long reading sessions How it works Open any book or article, set your speed, and tap play. WordRunner guides your eyes word by word โ no scrolling, no distractions. Most readers see noticeable speed improvements within their first session. Perfect for Students, professionals, and curious readers who want to get through more books, articles, and documents in less time.
Synapse
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Synapse transforms the way you capture and connect knowledge. Every book you read, every film that moves you, every idea worth keeping โ Synapse turns them into a living graph where nothing stays isolated. โ CAPTURE WHAT MATTERS Add books, movies, series, journals and personal notes as sources. Write fast, think clearly. Notes link themselves through [[wikilinks]] as you type. โ SEE HOW YOU THINK Your knowledge graph visualises every connection in real time. Tap any node to explore. Tap any edge to read why two ideas are connected. Drag nodes to organise your mental map the way you see the world. โ DISCOVER HIDDEN CONNECTIONS Synapse AI reads your entire graph and surfaces non-obvious links between notes โ the kind your conscious mind skipped. Swipe right to accept a connection and save the reason forever. โ DISCOVER WHAT TO READ NEXT Open any source and let Gemini recommend a book, film and series that share its soul. Not keyword matches โ deep thematic resonance. โ YOUR DATA, YOUR CONTROL Everything is stored locally on your device, encrypted at rest. Export your full graph as JSON at any time. Delete your account permanently in one tap. Synapse is for readers, thinkers, and anyone who believes their best ideas come from connecting what they already know.
Screenshots
Verdict
The clearest difference is update cadence: Synapse at every 8 days against Word Runner's every 3 months. Synapse also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Word Runner ships an update every 3 months, Synapse every 8 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Word Runner | Synapse |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 8 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 24 MB |
| Age rating | 4+ | 12+ |
| Developer | simge nur cankaya | Ismael Hernandez |
In-app purchases
Word Runner
No in-app purchases
Synapse
No in-app purchases








