Workflow & Planning
FBA Calculator shows Amazon fees, sales margins, revenue and product net profit and is free to use.
Compare extensions
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FBA Calculator shows sales, Amazon seller fees, Amazon net profit, ROI, product costs, and profitability for free.
Audience & ratings
Store users
≈100K
822
Ratings
What stands out
Amazon FBA Calculator Free by AMZScout reports the larger audience. These are store counts, including rounded estimates. The rating difference is 0.81 points across 366 and 2 ratings.
Different categories. Category overlap does not establish that two products serve the same workflow.
Product & publisher
Publisher
AMZscout Corp.
Market Gap LLC
Publisher portfolio
7 listings
1 listing
Listing status
Active
Active
Manifest
Version 3
Version 3
Package size
851KiB
960KiB
Permissions & access
Requested capabilities describe access, not developer intent or a safety verdict.
API permissions
7 requested
- background
- activeTab
- tabs
- storage
- unlimitedStorage
- cookies
- identity
3 requested
- storage
- unlimitedStorage
- cookies
Website patterns
1 recorded
- *://*/*
8 recorded
- *://*.amazon.com/*
- *://*.amazon.ca/*
- *://*.amazon.co.uk/*
- *://*.amazon.fr/*
- *://*.amazon.de/*
- *://*.amazon.es/*
- *://*.amazon.it/*
- *://marketgap.pro/*
Releases
Explore the release history
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Create your free accountEvidence behind this comparison
Both listings observed 2 Oct 2026.
Store users and ratings are observations, not revenue or lifetime installs. A larger audience or a higher score does not establish product quality.
How Earlygap collects evidenceReplace an extension
Your comparison
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Amazon FBA Calculator Free by AMZScoutWorkflow & Planning
FBA Calculator for Amazon FBA Sellers - FreeTools