BionicWords vs YapRun
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BionicWords
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BionicWords uses RSVP (Rapid Serial Visual Presentation) to display text one word at a time at a fixed focal point. Your eyes stay still. Words flow to you. No skimming, no re-reading, no losing your place. Every word lands exactly where your brain expects it. The secret is the Optimal Recognition Point. Each word is displayed with its natural focal letter highlighted — the exact point where your eye locks when reading. Your brain recognises words faster, processes meaning quicker, and retains more. Start at 200 WPM. Work your way to 600. Push past 900 if you dare. Your reading speed is the only limit. HOW IT WORKS Paste any text, open a file, or load from your library Tap play — words appear one at a time, centred on the focal point Your highlighted focal letter stays fixed, your eyes stay relaxed Adjust speed on the fly — from a gentle 50 WPM to a blazing 1500 WPM WHAT YOU CAN READ Paste any text — articles, study notes, emails, blog posts, book chapters. Import TXT files directly. Upgrade to Pro to import PDFs and EPUBs — BionicWords intelligently strips out page numbers, headers, and formatting noise so you only see the words that matter. SMART READING Not all words are equal. BionicWords automatically pauses slightly longer at sentence endings, clause breaks, and complex words. The rhythm feels natural, not robotic — even at high speeds. SPEED PRESETS FOR EVERY LEVEL Chill (150 WPM) — relaxed, easy comprehension Normal (250 WPM) — average adult reading speed Fast (400 WPM) — comfortable push Rapid (600 WPM) — serious readers Insane (900 WPM) — speed reading territory Ludicrous (1200+ WPM) — test your limits Or set any custom speed with the precision slider and fine-tune buttons — adjustable in real-time, even mid-sentence. TRACK YOUR PROGRESS See your words read, time elapsed, and actual average WPM after every session. Upgrade to Pro for reading streaks, all-time stats, weekly charts, and a full reading history so you can pick up exactly where you left off. DISTRACTION-FREE DESIGN Pure black background. White text. Red focal point. Nothing else. No banners, no pop-ups, no clutter. When you're reading, BionicWords disappears — leaving only the words and your focus. BIONICWORDS PRO — UNLOCK EVERYTHING One-time purchase. No subscription. Keep it forever. Remove all ads Import PDF and EPUB files Reading history and bookmarks Resume where you left off Advanced stats and reading streaks 6 premium themes including Sepia, Midnight, and OLED Extra fonts including OpenDyslexic for accessibility Unlimited daily reading sessions BUILT FOR Students — get through textbooks and papers in half the time Professionals — stay on top of reports, briefs, and industry reading Book lovers — finally finish that reading list Lifelong learners — consume more knowledge, retain more of it Anyone who reads on a screen — which is everyone Your data stays on your device. No account required. No tracking. Just reading, faster.
YapRun
This voice-to-text keyboard runs entirely on your device, transcribing your speech into text without needing an internet connection or sending your data to the cloud. It offers multiple AI models for speed and accuracy, and saves your dictation history locally.
- On-device AI transcription
- System keyboard integration
- Multiple AI models (speed/accuracy)
- Works offline
- Live Activity support
- Dictation history
- Undo/Redo functionality
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stop typing. start yapping. YapRun is a voice-to-text keyboard that runs entirely on your device. no cloud. no subscriptions. no random server in Virginia listening to your voice notes. just pure, on-device AI transcription that works anywhere you can type. here's the deal — you install YapRun as a keyboard, tap the "Yap" button, and talk. your words appear as text. that's it. no account signup. no email verification. no "start your free trial." it just works. AND YES — YOUR DATA STAYS ON YOUR PHONE. we're not being dramatic. the AI model literally runs on your iPhone's Neural Engine. your audio never touches a server. never gets uploaded. never gets "anonymized and used to improve our services." it stays on your device, gets transcribed, and the audio is immediately discarded. period. — WHAT YOU GET: → Custom Voice Keyboard install YapRun as a system keyboard and use voice dictation in any app — Messages, Notes, WhatsApp, Slack, literally anywhere you type. tap "Yap", talk, done. → Multiple AI Models choose between speed and accuracy. the "Fast" model runs on Apple's Neural Engine with almost zero battery drain. the "Accurate" model gives you better results for longer dictation. you pick what works for you. → Works Everywhere once you set up the keyboard, it works in every single app. iMessage, email, social media, whatever. your voice, your text, your rules. → Live Activity Support see your dictation status right on the Dynamic Island or Lock Screen. know exactly when YapRun is listening, transcribing, or done — no guessing. → ASR Playground want to test how good the transcription is before you commit? open the built-in Playground, hit record, and see the results in real-time. nerd out to your heart's content. → Notepad a simple built-in text editor for testing or quick notes. switch to YapRun keyboard, start talking, see your words appear. → Dictation History every transcription is saved locally so you can go back and copy anything you've dictated. your history, stored on your device, nowhere else. → Undo / Redo made a mistake? undo the last dictation. changed your mind? redo it. simple. → Word Stats track how many words you've dictated and how many sessions you've had. flex your yapping stats. — WHY YAPRUN EXISTS: most voice typing tools send your audio to the cloud. that means: • someone else's server processes your voice • your data exists on infrastructure you don't control • you need internet to use it • there's latency YapRun flips all of that. the AI runs locally using Apple's Neural Engine (or CPU if you prefer). no internet required after the initial model download. no latency from round-tripping to a server. no privacy concerns. we built this because we genuinely believe your voice data is nobody's business but yours. — SETUP TAKES 2 MINUTES: 1. open YapRun 2. allow microphone access 3. add YapRun keyboard in Settings → General → Keyboards 4. enable Full Access (required for the keyboard to work across apps) 5. download a voice model (one-time, ~70-134 MB) 6. start yapping Full Access is needed so the keyboard extension can communicate with the main app to activate the microphone. we don't use it to collect any data. ever. — POWERED BY RUNANYWHERE SDK YapRun is built on the open-source RunAnywhere on-device AI platform. same tech, open codebase, no secrets.
Screenshots
Verdict
The clearest difference is in-app purchases: YapRun at none against BionicWords's 1. BionicWords's advantage is iOS requirement (13.0 vs 17.0). 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. BionicWords sells 1 one-off in-app purchase. YapRun asks for nothing beyond the download.
| Parameter | BionicWords | YapRun |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 68 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | CODENESTLE PTY LTD | RunAnywhere |
In-app purchases
BionicWords
- BionicWords Pro$3.99
YapRun
No in-app purchases









