FactFlow

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Streak: 0 in a row Best this round: 0 | Best ever: -

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Speed: 0.0 facts/min Best speed: -

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Your Progress

Fluent In progress Locked

Mastery Over Time

Haptic Feedback

When you answer a question, the device briefly vibrates to give feedback. This uses the browser's Vibration API, which is not supported by every mobile browser.

Works: Chrome, Brave, Samsung Internet, and Edge on Android
Does not work: Firefox on Android (API removed in 2020), DuckDuckGo on Android (API blocked for privacy)
Not applicable: iOS - Apple does not allow vibration from web pages

If your device supports it, make sure vibration is turned on in your phone's sound or accessibility settings.

How the Mastery Score Works

Your score is mostly based on how many multiplication facts you have mastered.

Fluent facts count fully.
In-progress facts count partly.
Accuracy and speed add a small bonus.
The bonus grows as you master more facts, so progress matters most.

The graph shows your most recent 10 quiz results by default. Use "Show all results" to see everything saved on this device.

The chart zooms in to show progress clearly, but the mastery score is always out of 100.