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AMZ Prep MCF Calculator - Save 30% on Amazon Fulfillment

Chrome extension by AMZ Prep · Productivity · Workflow

A Chrome extension in Productivity · Workflow with 30 users, barely installed.

Specific sites only: 12 match patterns.

What the developer says, and 2 screenshots

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

Users
30
Rating
5.0 (2 ratings)
Users, last 15 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
2.1
Updated in the store
2026-02-18
Published
2024-12-10
Manifest
V3
Browser access
12 site patterns

How it has moved

Users
unchanged since 01.09
25-31 · 8 readings
  1. 2026-09-0130
  2. 2026-09-0329
  3. 2026-09-0631
  4. 2026-09-0729
  5. 2026-09-0828
  6. 2026-09-1025
  7. 2026-09-1327
  8. 2026-09-1530
Rating
unchanged since 01.09
reviewsrating 5.00 · 8 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-03reviews2rating5.00
  3. 2026-09-06reviews2rating5.00
  4. 2026-09-07reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-10reviews2rating5.00
  7. 2026-09-13reviews2rating5.00
  8. 2026-09-15reviews2rating5.00
Users
unchanged since 01.09
25-31 · 8 readings
  1. 2026-09-0130
  2. 2026-09-0329
  3. 2026-09-0631
  4. 2026-09-0729
  5. 2026-09-0828
  6. 2026-09-1025
  7. 2026-09-1327
  8. 2026-09-1530
Rating
unchanged since 01.09
reviewsrating 5.00 · 8 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-03reviews2rating5.00
  3. 2026-09-06reviews2rating5.00
  4. 2026-09-07reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-10reviews2rating5.00
  7. 2026-09-13reviews2rating5.00
  8. 2026-09-15reviews2rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing 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: 12 match patterns.

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

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

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 FBA Calculator & Seller Tools – Free Profit, BSR & Fee Analyzer AMZ Prep · Productivity · Tools · published 2024-12-21 653 users ★ 5.0
  2. Amazon & Shopify Data Exporter - AMZ Prep Global 3PL AMZ Prep · Productivity · Tools · published 2025-08-26 218 users ★ 5.0
  3. Amazon Keyword Index Checker & Rank Tracker AMZ Prep · Productivity · Workflow · published 2025-12-06 128 users ★ 5.0
Show 1 more from this publisher
  1. FBA Calculator - Free Amazon Profit & Fee Calculator by AMZ Prep AMZ Prep · Productivity · Tools · published 2025-06-10 90 users

Like this one

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

  1. FBA Profit Calculator — NetMargin Describes nearly the same job, smaller audience 3 users (last published figure)
  2. AMZCalc - FBA & Inbound Fee Calculator Describes nearly the same job, smaller audience 3 users
  3. FBA Prep Checker - Avoid Defect Fees Describes nearly the same job, smaller audience 6 users
  4. Amazon FBA Calculator & Seller Tools – Free Profit, BSR & Fee Analyzer Describes nearly the same job, smaller audience 653 users ★ 5.0
  5. FBA Profit Calculator - Prep Fees & Shipping Describes nearly the same job, smaller audience 10 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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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.