Beterman 10 Seconds Challenge

by Rogers Neves · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 17 Oct 2026

10 seconds timer challenge with milliseconds and stop button

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#314K

#252K among extensions

Version

1.0.1

updated 23 Jan 2026

Users

monthly, 9 months

Latest, 17 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 9 months

Latest, 17 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Beterman 10 Seconds Challenge

A simple, lightweight calculator that lives right in your browser toolbar. Perform basic arithmetic (+, -, *, /) instantly without leaving your current tab. ✨ Key Features - Quick Access: Click the calculator icon to open a compact popup interface. - Calculation History: Tracks your last 20 calculations automatically. Review past results at a glance. - Clear History Button: One-click to reset and start fresh. - Keyboard-Friendly: Uses mouse or trackpad clicks for seamless operation. - Persistent Storage: History saves across browser sessions using Chrome's secure local storage. - No Eval Hassle: Fully compliant with Manifest V3 CSP – safe, fast, and reliable calculations. 📱 Perfect For - Quick math during browsing, shopping, or work. - Students, professionals, and anyone needing on-demand calculations. - Offline use – works without internet. 🔧 How to Use - Pin to toolbar for one-click access. - Enter numbers/operators (2 + 3 =). - Results appear instantly with history update. - "C" clears current input; "Clear" wipes history. Privacy-focused – no data collection. Built for speed and simplicity.