API & MCP

Sixty-Six

One habit. One finish line. On every new tab.

As of July 2026, Sixty-Six has users in the Functionality & UI category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

1 snapshots

Tracking since Jul 18, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jul 18, 20261.0.0
Now1.0.0

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

Sixty-Six screenshot 1Sixty-Six screenshot 2Sixty-Six screenshot 3Sixty-Six screenshot 4

About

Sixty-Six replaces the Chrome new-tab page with a simple tracker for completing one habit over a 33, 66 or 99-day run.

Choose a run of 33, 66 or 99 days, then mark each day complete as you move toward the finish line. Your current day and progress stay visible every time you open a new tab, helping you return to the habit without adding another app, dashboard or list to manage.

Sixty-Six is deliberately simple: one habit, one run, one clear finish line.

Features:

— Track one habit at a time
— Choose a 33, 66 or 99-day run
— Replace your new tab with a focused daily view
— Mark each day complete
— See your progress build over time
— Review and archive past runs
— Reset and begin again whenever you need to
— Store your habit data locally in Chrome
— No account required

Sixty-Six is designed for habits such as writing, reading, stretching, meditating, practising a language or doing one small thing consistently.

Your progress stays on your device. Sixty-Six does not require an account and does not sell your data.

Technical

Version
1.0.0
Manifest
V3
Size
181KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
nmcpnolcdgichefemjijfaahakhodlcj
Developer ID
uff907f5c9d22a5ee560f5e07d4e9b366
Developer Email
[email protected]
Created
Jul 17, 2026
Last Updated (Store)
Jul 17, 2026
Last Scraped
Jul 18, 2026
Website
Support URL

Data sourced from the Chrome Web Store · last verified Jul 18, 2026.