MarginPeek — Profit & Review Analyzer
Overview
Calculate profit, margin, ROI and breakeven on any product page. Optional AI review summary with your own OpenAI key.
Work out whether a product is actually worth selling, while you are looking at it. Enter your cost, shipping and fees, and MarginPeek calculates profit per unit, margin percentage, return on investment, the breakeven unit count, and the price you would need to charge to hit a 30% margin. The arithmetic is done in your browser. There is also an optional review summary. It is off unless you turn it on, and it uses your own OpenAI API key, which you enter in the extension's settings and which is stored locally. We do not supply a key and we do not proxy the request. For anyone doing product research on marketplaces who is tired of switching to a spreadsheet.
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Details
- Version1.0.0
- UpdatedAugust 5, 2026
- Offered byCyzor Creations
- Size13.96KiB
- LanguagesEnglish (United States)
- Developer
Email
cyzorcreations@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
MarginPeek — Profit & Review Analyzer has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
MarginPeek — Profit & Review Analyzer handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site