Keystone Research Monitor

by Keystone Strategy, LLC · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 18 Oct 2026

Chrome and Edge browser extension supporting behavioral experiments and data collection for Keystone AI.

Users

112

−38 in 30 days

Rating

1.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#81K

#68K among extensions

Version

1.5.2

updated 30 Jul 2026

Users

monthly, 7 months

Latest, 18 Oct 2026: 112 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months

Latest, 18 Oct 2026: 1 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 Keystone Research Monitor

This extension is for enrolled research study participants. It collects a study-specific participant identifier, browser activity, page content, and related technical metadata needed to run Keystone behavior-data collection studies and support participant verification and study administration.

Growth

Window	Users	Change	Ratings	Rating
7 days	−6	−5.1%	0	0.00
30 days	−38	−25.3%	0	0.00
6 months	+112	–	+1	+1.00

Version history

9 versions recorded

1.5.230 Jul 2026

1.5.06 Jul 2026

1.3.1028 Jun 2026

1.3.921 Jun 2026

1.3.79 Jun 2026

1.3.619 May 2026

1.3.415 May 2026

1.3.37 May 2026

Details

Category: Tools
First seen: 4 Apr 2026
Size: 1.3 MB
Languages: en
Pricing: Free
Privacy policy: studies.inkeystone.com
Support: studies.inkeystone.com
Extension ID: hongfjedaekbcmaidppbldlhjcdeijei

Permissions and risk

Elevated riskimpact 4, likelihood 3

Permissions

alarmsdeclarativeNetRequestWithHostAccesshistoryscriptingsearchstoragetabssystem.cpusystem.displaysystem.memorysystem.storagewebNavigationwebRequest

Site access

<all_urls>

Can read and change data on every website you visit.