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Simulsync - Watch reactions in sync

Chrome extension by SimulSync · Lifestyle · Fun

A Chrome extension in Lifestyle · Fun with 306 users, barely installed. Audience over the last 30 days: +4.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

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

Users
306
Rating
5.0 (1 ratings)
Users, last 30 days
+4
Rating, last 30 days
Steady over 30 days
Version
0.9.4
Updated in the store
2024-12-11
Published
2021-06-02
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+4 since 02.10
302-322 · 20 readings
  1. 2026-10-05321
  2. 2026-10-08322
  3. 2026-10-09319
  4. 2026-10-10314
  5. 2026-10-11315
  6. 2026-10-13317
  7. 2026-10-16316
  8. 2026-10-17320
  9. 2026-10-18313
  10. 2026-10-19317
  11. 2026-10-20321
  12. 2026-10-21318
  13. 2026-10-22320
  14. 2026-10-23312
  15. 2026-10-24313
  16. 2026-10-25313
  17. 2026-10-28314
  18. 2026-10-29315
  19. 2026-10-30316
  20. 2026-11-01306
Rating
unchanged since 02.10
reviewsrating 5.00 · 20 readings
  1. 2026-10-05reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-11reviews1rating5.00
  6. 2026-10-13reviews1rating5.00
  7. 2026-10-16reviews1rating5.00
  8. 2026-10-17reviews1rating5.00
  9. 2026-10-18reviews1rating5.00
  10. 2026-10-19reviews1rating5.00
  11. 2026-10-20reviews1rating5.00
  12. 2026-10-21reviews1rating5.00
  13. 2026-10-22reviews1rating5.00
  14. 2026-10-23reviews1rating5.00
  15. 2026-10-24reviews1rating5.00
  16. 2026-10-25reviews1rating5.00
  17. 2026-10-28reviews1rating5.00
  18. 2026-10-29reviews1rating5.00
  19. 2026-10-30reviews1rating5.00
  20. 2026-11-01reviews1rating5.00
Users
-7 since 31.08
294-322 · 33 readings
  1. 2026-08-31313
  2. 2026-09-03309
  3. 2026-09-04319
  4. 2026-09-06317
  5. 2026-09-07319
  6. 2026-09-10315
  7. 2026-09-13313
  8. 2026-09-15312
  9. 2026-09-17315
  10. 2026-09-20311
  11. 2026-09-21305
  12. 2026-09-25294
  13. 2026-09-27302
  14. 2026-10-05321
  15. 2026-10-08322
  16. 2026-10-09319
  17. 2026-10-10314
  18. 2026-10-11315
  19. 2026-10-13317
  20. 2026-10-16316
  21. 2026-10-17320
  22. 2026-10-18313
  23. 2026-10-19317
  24. 2026-10-20321
  25. 2026-10-21318
  26. 2026-10-22320
  27. 2026-10-23312
  28. 2026-10-24313
  29. 2026-10-25313
  30. 2026-10-28314
  31. 2026-10-29315
  32. 2026-10-30316
  33. 2026-11-01306
Rating
unchanged since 31.08
reviewsrating 5.00 · 33 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-15reviews1rating5.00
  9. 2026-09-17reviews1rating5.00
  10. 2026-09-20reviews1rating5.00
  11. 2026-09-21reviews1rating5.00
  12. 2026-09-25reviews1rating5.00
  13. 2026-09-27reviews1rating5.00
  14. 2026-10-05reviews1rating5.00
  15. 2026-10-08reviews1rating5.00
  16. 2026-10-09reviews1rating5.00
  17. 2026-10-10reviews1rating5.00
  18. 2026-10-11reviews1rating5.00
  19. 2026-10-13reviews1rating5.00
  20. 2026-10-16reviews1rating5.00
  21. 2026-10-17reviews1rating5.00
  22. 2026-10-18reviews1rating5.00
  23. 2026-10-19reviews1rating5.00
  24. 2026-10-20reviews1rating5.00
  25. 2026-10-21reviews1rating5.00
  26. 2026-10-22reviews1rating5.00
  27. 2026-10-23reviews1rating5.00
  28. 2026-10-24reviews1rating5.00
  29. 2026-10-25reviews1rating5.00
  30. 2026-10-28reviews1rating5.00
  31. 2026-10-29reviews1rating5.00
  32. 2026-10-30reviews1rating5.00
  33. 2026-11-01reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • 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

SimulSync.

Like this one

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

  1. Free Reaction Describes nearly the same job, smaller audience 34 users ★ 5.0
  2. Video Sync Describes nearly the same job, smaller audience 703 users ★ 4.7
  3. SyncRoom Describes nearly the same job, smaller audience 13 users
  4. Video Punch In - Instant Video Link & Timestamp Copy Describes nearly the same job, smaller audience 18 users
  5. Youtube Sync Minimalist Describes nearly the same job, smaller audience 7 users

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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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/fknnccomamglagbbhgjdlljjkkkoppam/badge.svg)](https://extops.dev/extensions/fknnccomamglagbbhgjdlljjkkkoppam)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built