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Substash: Free Subscription Tracker

Chrome extension by Substash · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 255 users, barely installed. Audience over the last 30 days: -14.

Specific sites only: 2 match patterns.

What the developer says, and 5 screenshots

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

Users
255
Rating
5.0 (5 ratings)
Users, last 30 days
-14
Rating, last 30 days
Steady over 30 days
Version
1.0.2
Updated in the store
2025-10-30
Published
2024-01-19
Manifest
V3
Browser access
1 permission, 2 site patterns

How it has moved

Users
-14 since 01.10
255-292 · 17 readings
  1. 2026-10-05276
  2. 2026-10-08286
  3. 2026-10-09283
  4. 2026-10-10286
  5. 2026-10-13292
  6. 2026-10-16282
  7. 2026-10-17281
  8. 2026-10-18277
  9. 2026-10-19272
  10. 2026-10-21273
  11. 2026-10-22272
  12. 2026-10-23271
  13. 2026-10-24273
  14. 2026-10-25272
  15. 2026-10-27258
  16. 2026-10-29255
  17. 2026-10-30255
Rating
unchanged since 01.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-05reviews5rating5.00
  2. 2026-10-08reviews5rating5.00
  3. 2026-10-09reviews5rating5.00
  4. 2026-10-10reviews5rating5.00
  5. 2026-10-13reviews5rating5.00
  6. 2026-10-16reviews5rating5.00
  7. 2026-10-17reviews5rating5.00
  8. 2026-10-18reviews5rating5.00
  9. 2026-10-19reviews5rating5.00
  10. 2026-10-21reviews5rating5.00
  11. 2026-10-22reviews5rating5.00
  12. 2026-10-23reviews5rating5.00
  13. 2026-10-24reviews5rating5.00
  14. 2026-10-25reviews5rating5.00
  15. 2026-10-27reviews5rating5.00
  16. 2026-10-29reviews5rating5.00
  17. 2026-10-30reviews5rating5.00
Users
-3 since 01.09
249-292 · 31 readings
  1. 2026-09-01258
  2. 2026-09-03255
  3. 2026-09-04249
  4. 2026-09-06251
  5. 2026-09-07253
  6. 2026-09-08256
  7. 2026-09-09262
  8. 2026-09-13265
  9. 2026-09-15263
  10. 2026-09-17269
  11. 2026-09-21260
  12. 2026-09-22262
  13. 2026-09-25267
  14. 2026-09-27269
  15. 2026-10-05276
  16. 2026-10-08286
  17. 2026-10-09283
  18. 2026-10-10286
  19. 2026-10-13292
  20. 2026-10-16282
  21. 2026-10-17281
  22. 2026-10-18277
  23. 2026-10-19272
  24. 2026-10-21273
  25. 2026-10-22272
  26. 2026-10-23271
  27. 2026-10-24273
  28. 2026-10-25272
  29. 2026-10-27258
  30. 2026-10-29255
  31. 2026-10-30255
Rating
unchanged since 01.09
reviewsrating 5.00 · 31 readings
  1. 2026-09-01reviews5rating5.00
  2. 2026-09-03reviews5rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-06reviews5rating5.00
  5. 2026-09-07reviews5rating5.00
  6. 2026-09-08reviews5rating5.00
  7. 2026-09-09reviews5rating5.00
  8. 2026-09-13reviews5rating5.00
  9. 2026-09-15reviews5rating5.00
  10. 2026-09-17reviews5rating5.00
  11. 2026-09-21reviews5rating5.00
  12. 2026-09-22reviews5rating5.00
  13. 2026-09-25reviews5rating5.00
  14. 2026-09-27reviews5rating5.00
  15. 2026-10-05reviews5rating5.00
  16. 2026-10-08reviews5rating5.00
  17. 2026-10-09reviews5rating5.00
  18. 2026-10-10reviews5rating5.00
  19. 2026-10-13reviews5rating5.00
  20. 2026-10-16reviews5rating5.00
  21. 2026-10-17reviews5rating5.00
  22. 2026-10-18reviews5rating5.00
  23. 2026-10-19reviews5rating5.00
  24. 2026-10-21reviews5rating5.00
  25. 2026-10-22reviews5rating5.00
  26. 2026-10-23reviews5rating5.00
  27. 2026-10-24reviews5rating5.00
  28. 2026-10-25reviews5rating5.00
  29. 2026-10-27reviews5rating5.00
  30. 2026-10-29reviews5rating5.00
  31. 2026-10-30reviews5rating5.00

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

Specific sites only: 2 match patterns.

  • https://api.frankfurter.app/*
  • https://*.supabase.co/*
  • 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

Substash. Listed website: substash.io.

Like this one

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

  1. SubWatch — Subscription Tracker Describes nearly the same job, smaller audience 5 users
  2. Subscription Tracker - Trackery Describes nearly the same job, smaller audience 6 users
  3. SubList Subscription Manager Describes nearly the same job, smaller audience 24 users ★ 5.0
  4. Renewly Describes nearly the same job, smaller audience 2 users (last published figure)
  5. Smart Subscription Tracker & Reminder Describes nearly the same job, smaller audience 12 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/plpibeoebjbpagncokhedafidecfkimp/badge.svg)](https://extops.dev/extensions/plpibeoebjbpagncokhedafidecfkimp)

HTML

<a href="https://extops.dev/extensions/plpibeoebjbpagncokhedafidecfkimp"><img src="https://extops.dev/extensions/plpibeoebjbpagncokhedafidecfkimp/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built