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Contest Reminder – Coding Competition Alerts

Chrome extension by EveryThingMattersHQ.tools · Productivity · Developer

  • Featured
  • Established publisher

A Chrome extension in Productivity · Developer with 410 users, barely installed.

Specific sites only: 9 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
410
Rating
4.6 (9 ratings)
Users, last 19 days
+10
Rating, last 30 days
Not watched long enough to say
Version
2.8.2
Updated in the store
2026-08-08
Published
2025-11-28
Manifest
V3
Browser access
4 permissions, 9 site patterns

How it has moved

Users
+10 since 31.08
397-412 · 9 readings
  1. 2026-08-31400
  2. 2026-09-02397
  3. 2026-09-05401
  4. 2026-09-06400
  5. 2026-09-09399
  6. 2026-09-13412
  7. 2026-09-15409
  8. 2026-09-17410
  9. 2026-09-18410
Rating
-0.44 since 31.08
reviewsrating 4.56-5.00 · 9 readings
  1. 2026-08-31reviews8rating5.00
  2. 2026-09-02reviews8rating5.00
  3. 2026-09-05reviews8rating5.00
  4. 2026-09-06reviews8rating5.00
  5. 2026-09-09reviews8rating5.00
  6. 2026-09-13reviews8rating5.00
  7. 2026-09-15reviews8rating5.00
  8. 2026-09-17reviews9rating4.56
  9. 2026-09-18reviews9rating4.56
Users
+10 since 31.08
397-412 · 9 readings
  1. 2026-08-31400
  2. 2026-09-02397
  3. 2026-09-05401
  4. 2026-09-06400
  5. 2026-09-09399
  6. 2026-09-13412
  7. 2026-09-15409
  8. 2026-09-17410
  9. 2026-09-18410
Rating
-0.44 since 31.08
reviewsrating 4.56-5.00 · 9 readings
  1. 2026-08-31reviews8rating5.00
  2. 2026-09-02reviews8rating5.00
  3. 2026-09-05reviews8rating5.00
  4. 2026-09-06reviews8rating5.00
  5. 2026-09-09reviews8rating5.00
  6. 2026-09-13reviews8rating5.00
  7. 2026-09-15reviews8rating5.00
  8. 2026-09-17reviews9rating4.56
  9. 2026-09-18reviews9rating4.56

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 9 match patterns.

  • https://www.codechef.com/*
  • https://atcoder.jp/*
  • https://www.hackerrank.com/*
Show the remaining 6
  • https://api.topcoder.com/*
  • https://practiceapi.geeksforgeeks.org/*
  • https://www.googleapis.com/*
  • https://accounts.google.com/*
  • https://leetcode.com/*
  • https://www.reddit.com/*
  • Sign you in with a Google account identity
  • Schedule work to run later alarms
  • Show you notifications notifications
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

EveryThingMattersHQ.tools publishes 7 listings we track, 641 users between them. Listed website: contestclocker.com.

  1. CommonCart: Cross-Store Wishlist & Price Tracker EveryThingMattersHQ.tools · Lifestyle · Shopping · published 2025-12-20 110 users ★ 4.3
  2. LootAlert - Free Game Radar EveryThingMattersHQ.tools · Lifestyle · Shopping · published 2026-01-23 47 users ★ 4.1
  3. Endurance Log — Deep Work Cockpit (New Tab) EveryThingMattersHQ.tools · Productivity · Workflow · published 2026-01-27 33 users ★ 5.0
Show 3 more from this publisher
  1. LinkLoom: Amazon Affiliate Link Clipper EveryThingMattersHQ.tools · Productivity · Workflow · published 2026-02-01 19 users ★ 5.0
  2. DailyDrop: Your Daily Algorithm Reset EveryThingMattersHQ.tools · Lifestyle · Well Being · published 2026-01-28 15 users ★ 5.0
  3. SpaceSnap - Tab Workspace Saver EveryThingMattersHQ.tools · Productivity · Workflow · published 2026-03-31 7 users (last published figure) ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. CodingDude - Contest Reminder Describes nearly the same job, smaller audience 1k users ★ 4.6
  2. CodingKaro Describes nearly the same job, smaller audience 29 users
  3. AlgoRadar Describes nearly the same job, smaller audience 68 users ★ 4.7
  4. CodeRush - Competitive Coding Tracker & Reminder Describes nearly the same job, smaller audience 22 users
  5. Contests Notifier Describes nearly the same job, smaller audience 746 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.