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Amazon FBA Calculator & Seller Tools – Free Profit, BSR & Fee Analyzer

Chrome extension by AMZ Prep · Productivity · Tools

  • Established publisher

A Chrome extension in Productivity · Tools with 788 users, barely installed. Audience over the last 30 days: +49.

Specific sites only: 20 match patterns.

What the developer says, and 5 screenshots

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

Users
788
Rating
5.0 (5 ratings)
Users, last 30 days
+49
Rating, last 30 days
Steady over 30 days
Version
2.0.0
Updated in the store
2026-02-07
Published
2024-12-21
Manifest
V3
Browser access
2 permissions, 20 site patterns

How it has moved

Users
+49 since 07.10
739-788 · 18 readings
  1. 2026-10-08749
  2. 2026-10-09755
  3. 2026-10-10765
  4. 2026-10-13778
  5. 2026-10-16767
  6. 2026-10-18761
  7. 2026-10-19759
  8. 2026-10-20750
  9. 2026-10-21753
  10. 2026-10-22760
  11. 2026-10-23764
  12. 2026-10-24763
  13. 2026-10-25764
  14. 2026-10-28781
  15. 2026-10-29781
  16. 2026-11-01777
  17. 2026-11-03782
  18. 2026-11-06788
Rating
unchanged since 07.10
reviewsrating 5.00 · 18 readings
  1. 2026-10-08reviews5rating5.00
  2. 2026-10-09reviews5rating5.00
  3. 2026-10-10reviews5rating5.00
  4. 2026-10-13reviews5rating5.00
  5. 2026-10-16reviews5rating5.00
  6. 2026-10-18reviews5rating5.00
  7. 2026-10-19reviews5rating5.00
  8. 2026-10-20reviews5rating5.00
  9. 2026-10-21reviews5rating5.00
  10. 2026-10-22reviews5rating5.00
  11. 2026-10-23reviews5rating5.00
  12. 2026-10-24reviews5rating5.00
  13. 2026-10-25reviews5rating5.00
  14. 2026-10-28reviews5rating5.00
  15. 2026-10-29reviews5rating5.00
  16. 2026-11-01reviews5rating5.00
  17. 2026-11-03reviews5rating5.00
  18. 2026-11-06reviews5rating5.00
Users
+206 since 31.08
582-788 · 35 readings
  1. 2026-08-31582
  2. 2026-09-02591
  3. 2026-09-04611
  4. 2026-09-05626
  5. 2026-09-06627
  6. 2026-09-07632
  7. 2026-09-08648
  8. 2026-09-09663
  9. 2026-09-13650
  10. 2026-09-15653
  11. 2026-09-17662
  12. 2026-09-21679
  13. 2026-09-22684
  14. 2026-09-25705
  15. 2026-09-27698
  16. 2026-09-28703
  17. 2026-10-04739
  18. 2026-10-08749
  19. 2026-10-09755
  20. 2026-10-10765
  21. 2026-10-13778
  22. 2026-10-16767
  23. 2026-10-18761
  24. 2026-10-19759
  25. 2026-10-20750
  26. 2026-10-21753
  27. 2026-10-22760
  28. 2026-10-23764
  29. 2026-10-24763
  30. 2026-10-25764
  31. 2026-10-28781
  32. 2026-10-29781
  33. 2026-11-01777
  34. 2026-11-03782
  35. 2026-11-06788
Rating
unchanged since 31.08
reviewsrating 5.00 · 35 readings
  1. 2026-08-31reviews5rating5.00
  2. 2026-09-02reviews5rating5.00
  3. 2026-09-04reviews5rating5.00
  4. 2026-09-05reviews5rating5.00
  5. 2026-09-06reviews5rating5.00
  6. 2026-09-07reviews5rating5.00
  7. 2026-09-08reviews5rating5.00
  8. 2026-09-09reviews5rating5.00
  9. 2026-09-13reviews5rating5.00
  10. 2026-09-15reviews5rating5.00
  11. 2026-09-17reviews5rating5.00
  12. 2026-09-21reviews5rating5.00
  13. 2026-09-22reviews5rating5.00
  14. 2026-09-25reviews5rating5.00
  15. 2026-09-27reviews5rating5.00
  16. 2026-09-28reviews5rating5.00
  17. 2026-10-04reviews5rating5.00
  18. 2026-10-08reviews5rating5.00
  19. 2026-10-09reviews5rating5.00
  20. 2026-10-10reviews5rating5.00
  21. 2026-10-13reviews5rating5.00
  22. 2026-10-16reviews5rating5.00
  23. 2026-10-18reviews5rating5.00
  24. 2026-10-19reviews5rating5.00
  25. 2026-10-20reviews5rating5.00
  26. 2026-10-21reviews5rating5.00
  27. 2026-10-22reviews5rating5.00
  28. 2026-10-23reviews5rating5.00
  29. 2026-10-24reviews5rating5.00
  30. 2026-10-25reviews5rating5.00
  31. 2026-10-28reviews5rating5.00
  32. 2026-10-29reviews5rating5.00
  33. 2026-11-01reviews5rating5.00
  34. 2026-11-03reviews5rating5.00
  35. 2026-11-06reviews5rating5.00

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: 20 match patterns.

  • *://*.amazon.com/*
  • *://*.amazon.co.uk/*
  • *://*.amazon.ca/*
Show the remaining 9
  • *://*.amazon.de/*
  • *://*.amazon.fr/*
  • *://*.amazon.it/*
  • *://*.amazon.es/*
  • *://*.amazon.co.jp/*
  • *://*.amazon.com.au/*
  • *://*.amazon.in/*
  • *://*.amazon.com.mx/*
  • *://*.amazon.com.br/*
  • 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

AMZ Prep publishes 5 listings we track, 1k users between them. Listed website: amzprep.com.

  1. Amazon & Shopify Data Exporter - AMZ Prep Global 3PL AMZ Prep · Productivity · Tools · published 2025-08-26 264 users ★ 5.0
  2. Amazon Keyword Index Checker & Rank Tracker AMZ Prep · Productivity · Workflow · published 2025-12-06 155 users ★ 5.0
  3. FBA Calculator - Free Amazon Profit & Fee Calculator by AMZ Prep AMZ Prep · Productivity · Tools · published 2025-06-10 100 users
Show 1 more from this publisher
  1. AMZ Prep MCF Calculator - Save 30% on Amazon Fulfillment AMZ Prep · Productivity · Workflow · published 2024-12-10 27 users ★ 5.0

Like this one

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

  1. Amazon FBA Profit Analyzer by Sequence Commerce Describes nearly the same job, smaller audience 8 users
  2. FBA Profit Calculator - Prep Fees & Shipping Describes nearly the same job, smaller audience 7 users (last published figure)
  3. SellerTool - Amazon FBA Rechner & Sourcing Describes nearly the same job, smaller audience 244 users
  4. SellerVault - Amazon FBA Deal Analyzer Describes nearly the same job, smaller audience 7 users
  5. AmazonScout - Product Research & FBA Calculator Describes nearly the same job, smaller audience 27 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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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/jeagncgedjikmcedfeipkmhkdanlebhn"><img src="https://extops.dev/extensions/jeagncgedjikmcedfeipkmhkdanlebhn/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 2026-11-06. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built