| What it does | Measure your reaction time and see where you rank against everyone else on the same device
| Count characters, words, hashtags and line breaks for social media platforms
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| GB
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Reaction time measurement with five trials and median scoring
- Device-specific percentile ranking (mouse, trackpad, touchscreen)
- Exportable score history stored in your browser
- Embeddable tests for third-party websites
- Anonymous population distribution comparison without tracking
| - Real-time character counting as you type
- Multi-platform limit display for Instagram, X, TikTok, YouTube, Facebook, LinkedIn, Pinterest and Threads
- Counts words, hashtags, mentions, emojis and line breaks
- Add line breaks formatting button
- Remove hashtags button
- Clean up spaces button
- Link counting with 23-character fixed length for X
- Local browser storage of last text
- No server storage of text
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| What makes it different | - Device-specific rankings that account for hardware differences like screen refresh rate and input latency
- No accounts, no tracking, and no third-party scripts or advertising
- Transparent methodology with published reference data sources and clear limitations
- Fully embeddable tests with no installation or sign-up required
- Median scoring from multiple trials to reduce noise and account for natural variability
| - Checks against all major social platforms simultaneously in one tool
- Handles platform-specific link counting rules accurately
- Text data stays only in your browser, never sent to server
- Completely free with no paywalls or limits
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 2 | 0 |
| Citation Flow (Majestic) | 22 | 0 |
| Referring domains (Majestic) | 9 | 0 |