FocusWord vs Synapse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FocusWord
This app presents books one word at a time on a dark screen, optimizing word placement for recognition. It offers adjustable reading speeds and smart pausing at sentence boundaries to minimize distractions and enhance focus, making reading a more immersive experience.
- One-word-at-a-time reading
- Smart Slowing for sentence pauses
- Adjustable WPM speed control
- EPUB import and parsing
- Chapter navigation and progress tracking
- ADHD-friendly design
- Accessibility features
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Your phone was designed to scatter your attention. FocusWord reverses the equation. FocusWord presents your books one word at a time on a full dark screen. Each word is positioned at its Optimal Recognition Point. Smart Slowing pauses naturally at sentence boundaries. Your phone becomes a place of focus instead of distraction. No willpower required. No fighting notifications. Just you and the words. IMPORT YOUR BOOKS Import any EPUB from your device. Navigate chapters. Track your reading progress. This is a real reading app for people who actually read books. READ AT YOUR PACE Adjust speed from 100 to 1000 WPM — whatever pace lets you focus completely. Start slow, build up naturally. Smart Slowing adapts to punctuation so the rhythm feels like reading, not a metronome. DESIGNED FOR FOCUS One word. Full screen. Zero distractions. Auto-hiding controls disappear within milliseconds. Gesture-only interaction while reading. The app becomes invisible so the book can take over. BUILT FOR BRAINS THAT WORK DIFFERENTLY ADHD-friendly design. VoiceOver support. Right-to-left reading. Reduce Motion compatibility. Focus isn't a character trait you lack — it was just never properly supported. BUY ONCE. READ FOREVER. No subscriptions. No ads. No dark patterns. No account required. One purchase, unlimited books, every feature. Your books stay on your device. Your data stays yours. FocusWord features: • One-word-at-a-time focused reading • Smart Slowing at sentences and clauses • 100–1000 WPM speed control • Full EPUB import and parsing • Chapter navigation with progress tracking • Reading position auto-save • Dark interface (WCAG AA contrast) • Accessibility: VoiceOver, RTL, Reduce Motion • Gesture controls: tap, swipe, long-press • iPhone and iPad
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 — Synapse turns them into a living graph where nothing stays isolated. — 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. — 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. — DISCOVER HIDDEN CONNECTIONS Synapse AI reads your entire graph and surfaces non-obvious links between notes — the kind your conscious mind skipped. Swipe right to accept a connection and save the reason forever. — DISCOVER WHAT TO READ NEXT Open any source and let Gemini recommend a book, film and series that share its soul. Not keyword matches — deep thematic resonance. — 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 iOS requirement: Synapse at 13.0 against FocusWord's 17.0. On price, update cadence, ads and in-app purchases 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.
FocusWord ships an update weekly, Synapse every 8 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | FocusWord | Synapse |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Every 8 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 24 MB |
| Age rating | 4+ | 12+ |
| Developer | Marcelo Alves | Ismael Hernandez |
In-app purchases
FocusWord
No in-app purchases
Synapse
No in-app purchases








