Calculator app
Tools
Likely PaidConfidence 92Platform Lemon Squeezy
Use Calculator app as free, smart and simple calculator. This calc chrome extension works fast and efficient.
Users
80K
Rating
4.8
Reviews
234
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
Stopwatch, Timer and Alarm
For your browser, a simple to use and lightweight timer, alarm, and stopwatch.
Users1KCurrent public install base
Rating4.2Store average score
Reviews27Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
2 assetsStopwatch, Timer and Alarm Media preview
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7-day rating change
Start
4.22
Latest
4.22
7-day rating change
0.00
2026年7月9日2026年7月13日
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Version0.1
ManifestV3
Size8.48MiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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An "Stopwatch, Timer and Alarm" add-on allows you to quickly create a timer, alarm, or change the stopwatch in your browser.
This add-on may be used in three different ways: as a toolbar button, in a new tab, or alone. Simply right-click on the toolbar button to pick your context. There are three tabs on the left side of the interface; please check each one to get more information. A button appears at the top of the interface to create a new timer or alarm. Select this button to modify timer settings or alarms. The start, reset, and lap buttons may be found on the stopwatch tab.
Reviews
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Store average score4.2Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.2Average computed only from synced review bodies below
Reviews with text27Synced review bodies
Total ratings / reviews27Chrome Web Store public rating/review count
Store average score: 4.2. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Actually, the extension is not bad, but there are two problems: 1. The font is very small. 2. The sound doesn't work - only a pop-up notification! Tatsächlich ist die Erweiterung nicht schlecht, aber es gibt zwei Probleme: 1. Die Schriftart ist sehr klein. 2. Der Ton funktioniert nicht – nur eine Popup-Benachrichtigung!
doesn't work at all
Please please add an option to adjust the volume. I need the device volume on max for my calls, and that is too loud for the alarm please!
DOESN'T WORK SOUND!
the extension don't have AM , PM setting. If I want to wake up at a PM, there is no option. please, add on the AM , PM option.
Indeed, no sound at all. I tried some times with different sound buttons (1-5) but it's always the same. Appears pop-up panel only. If you sit in front of the screen it's ok, but if no, this thing is useless
I like that it gives a popup in the middle of the page to notify you, very obvious, but like the one review the sound did not work once the timer goes off. -- I've allowed sounds in permissions but still don't work.
Look no further! This is what you're looking for! I was desperate to find a browser extension that would allow me to have multiple timers. I tried so many- one's alarm didn't work, most allowed multiple time-of-day alarms but not multiple countdown timers, some didn't work properly, any rare multiple timer extension I found usually wouldn't let me have multiple running at once- if I started a new one it stopped the old one. This is everything I was looking for and it's simple, beautiful, and effective. Thank you for this! edit; changed review after I found out that the alarms just DON'T make ANY sound!
Having the ability to work on multiple sites simultaneously and set timers for each site without ever leaving my browser is a very convenient feature!
How much easier it is to set up timers on different browsers without leaving the website we are working on. This saves me a lot of time!