ThumbDash
- Product Name
- ThumbDash
- Product Type
- AI-powered mobile speed-typing game
- Developer
- Maker Portal LLC
- Platform
- iOS 17.0+
- Minimum iOS Version
- iOS 17.0
- Minimum Device Requirements
- Apple A12 Bionic or newer (iPhone XR, XS, iPad Air 3, iPad Mini 5, iPad 8)
- App Store Download URL
- https://apps.apple.com/us/app/thumbdash/id6786884554
- On-Device AI Engine
- llama.cpp / llama.xcframework compiled for Metal GPU acceleration on iOS
- Local Language Model
- SmolLM2-360M-Instruct (Quantized GGUF format, approximately 386 MB download size)
- Typing Capture Method
- Subclassed hidden native UITextField with predictive text, autocomplete, autocorrect, and copy/paste disabled
- Keystroke Capture precision
- mach_absolute_time() nanosecond-precision diffing of input buffer snapshots
- Error Alignment logic
- Levenshtein distance matrix calculation against original target prompt text
- Scorecard Visualization
- Missed-key layout matrix mapping errors to a virtual QWERTY keyboard heatmap
- Statistics Reporting
- Locally stored rounds history displayed through native Swift Charts trends (WPM, accuracy, progress)
- Ghost Race capability
- Saves character-by-character timestamp log of personal best run, rendering a secondary progress caret during gameplay
- Haptic / Feedback Engine
- Core Haptics pattern sequences driving customized physical click/error responses, coupled with AVAudioEngine synthesized sounds
- Privacy Policy model
- 100% offline. Zero network telemetry. Zero data collection. No player accounts. Full PrivacyInfo.xcprivacy manifest.
- Monetization model
- Free-to-play with optional in-app purchase upgrades (monthly Supporter subscription or lifetime Pro purchase)
Outtype.
Outpace. Outlast.
The speed-typing game that turns your iPhone into a competitive arena. Race infinite AI-generated prompts with no download required, beat your own ghost, and push your WPM to the redline — all offline, all on-device, zero excuses.
Your Edge
Built for Raw Velocity
No autocorrect. No predictive text. No safety net. ThumbDash strips away every shortcut so every word you type is earned with pure muscle memory and reflex.
Zero-Lag Typing Engine
Every keystroke registers instantly. Autocorrect, predictions, and paste are killed — what your thumbs type is what the screen shows. This is mechanical-feel typing on glass, delivering honest WPM you can actually trust.
Infinite Fresh Prompts
Never see the same passage twice. On-device AI writes unique, arena-themed prompts on the fly — no internet required, no memorized texts, just pure reaction to words you've never read before.
Tactile Feedback
Feel the game in your hands. Every correct keystroke delivers a satisfying click pulse; every mistake hits you with a sharp haptic jolt and audio cue. Your fingers learn faster when your body keeps score.
Ghost Races & Performance Stats
Race a ghost caret of your personal best — character by character, in real time. Track your WPM velocity, accuracy trends, and missed-key heatmap across every session to see exactly where you're gaining speed.
The Reflex Loop
From Keystroke to Scorecard
Choose Your Arena
Five Ways to Compete
From endurance training to daily showdowns, pick the mode that matches your competitive intensity.
Classic Mode
Unlimited rounds with fresh AI-generated prompts every time. Build your rhythm, sharpen your muscle memory, and push your WPM ceiling higher with each session.
Sprint Modes
A flat-out race against the clock. Blitz through chaining passages at maximum velocity in 30s or 60s variants — every typo costs you precious time. Pure adrenaline, zero margin for error.
Ghost Race
Beat yourself. A ghost caret replays your personal best run in real time, character by character. Outpace it to set a new record — or watch it pull away and know you need another rep.
Daily Thumb
One prompt. One shot. Every day. The same challenge shared globally — test your cold-start reflexes, compete for bragging rights, and see how you stack up.
In the Zone
See ThumbDash in Action
Know Your Playstyle
What Type of Typer Are You?
Answer three quick questions to discover your competitive typing profile and ideal game mode.
The ThumbDash Difference
Not All Typing Games Are Equal
Most typing apps let autocorrect inflate your score, recycle the same stale prompts, and phone home with your data. ThumbDash is built for players who want honest speed.
| Feature | Other Typing Apps | ThumbDash |
|---|---|---|
| Prompts | Recycled database texts you'll memorize | Fresh AI-generated prompts every round |
| Autocorrect | Autocorrect & predictive text inflate scores | All assists disabled — raw thumbs only |
| Speed Tracking | Approximate timing with touch events | Nanosecond-precision keystroke capture |
| Error Analysis | Basic error counters | QWERTY heatmap showing your weakest keys |
| Offline Play | Requires internet connection | 100% offline — play anywhere, anytime |
| Privacy | Ad trackers, accounts, data harvesting | Zero tracking, zero accounts, your data stays yours |
Under the Hood
Game Specifications
| Specification | Detail |
|---|---|
| AI Prompt Engine | On-device AI generates unique, themed typing prompts directly on your iPhone — no server, no internet, no repeated passages. A built-in fallback generator ensures the game never stalls. |
| Typing Engine | Custom low-latency input capture with autocorrect, predictions, smart punctuation, and paste fully disabled. Delivers the raw, mechanical feel of a physical keyboard on a glass screen. |
| Speed Analytics | Nanosecond-precision keystroke timing captures your exact speed on every character. Mistake detection pinpoints each error and maps it to a visual QWERTY heatmap so you know exactly which keys need work. |
| Tactile Feedback | Custom haptic pulse patterns give every keystroke a satisfying physical click, while mistakes trigger a distinct error jolt paired with instant audio feedback — training your reflexes through feel. |
| Performance Tracking | Full round history with interactive charts tracking your WPM and accuracy progression over time. Shareable scorecards render a visual QWERTY missed-key heatmap of your weakest keys. |
| Compatibility | Requires iOS 17.0 or later on iPhone or iPad. The AI prompt engine runs best on modern devices; older hardware automatically uses the built-in prompt generator for a seamless experience. |
Your Data, Your Device
100% Private. Zero Tracking.
Everything Stays on Your Device
The AI engine runs entirely inside your iPhone's processor. Prompts are generated locally, keystrokes are logged locally, and your scores never leave your device. There's no server to hack because there is no server.
No Ads. No Accounts. No Trackers.
ThumbDash ships without analytics SDKs, ad networks, or tracking pixels. We don't ask for your email, username, or phone number. The only network connection is Apple's own App Store for purchases.
Privacy Manifest Details
ThumbDash complies fully with Apple's PrivacyInfo.xcprivacy requirements, declaring:
- Zero tracking as defined by App Tracking Transparency rules.
- No data collection linked to user identities or tracking purposes.
- Secure system APIs restricted to local UserDefaults access to save round statistics history, and standard App Store Kit APIs for subscriptions.
Questions? Contact us at support@makersportal.com. Because all processing is local, there is no user data for us to provide, modify, or delete.
Questions
Frequently Asked
No — rounds work fully offline. ThumbDash ships with a built-in prompt generator, and the on-device AI engine is already bundled inside the app and ready at first launch. An internet connection is only needed for App Store purchases (or to optionally download the massive 1.7B Pro model).
ThumbDash runs a small language model (SmolLM2) entirely on your device to write a short, unique passage for every round, themed to the arena you pick. Nothing is fetched from a server, and no two rounds should read the same. If the AI engine is not downloaded — or ever fails — a built-in procedural generator steps in instantly, so the game never stalls.
Nowhere. Keystrokes, scores, and round history are stored only on your device. ThumbDash has no accounts, no analytics, and no servers — the only network activity is the optional one-time AI model download and Apple's own App Store purchase system. Your typing is completely private.
The free game includes two arenas (Deep Space and Zen Garden), Classic mode, unlimited rounds, and the bundled on-device AI engine. Supporter ($2.99/mo) and Pro ($14.99 lifetime) both unlock all 15 arenas, all 5 modes (including 30s/60s Sprint, Daily Thumb, and Ghost Race), full stats history with trends, watermark-free share cards, and the optional 1.7B AI model. To restore a previous purchase on a new device, tap Restore Purchases on the upgrade screen while signed in with the same Apple Account.
ThumbDash requires iOS 17.0 or newer and runs on iPhone and iPad. The optional AI engine is tuned to run comfortably on modern devices; on older or lower-memory hardware, ThumbDash automatically falls back to its built-in prompt generator, so every device gets the full game.
Net WPM counts correctly typed characters (5 characters = 1 word) per minute. Accuracy counts every forward keystroke, so a mistake always costs you even after you fix it. Mistyped characters advance the cursor and must be backspaced and retyped to score as correct — autocorrect, predictive text, and paste are all disabled, so every word is thumbed out honestly.
