Workflow & Planning
Free Keyword & Product Research Tool for Amazon Sellers. Get Search Volume, Trends, and Listing Intelligence.
Tools
Analyze products, keywords, markets, and profits directly on Amazon to support efficient, data-driven decision-making.
Audience & ratingsWhat stands out tool4seller - Amazon Product Research Extension reports the larger audience. These are store counts. The rating difference is 0.67 points across 50 and 12 ratings.
Different categories. Category overlap does not establish that two products serve the same workflow.
Product & publisher Publisher Not recorded
Tapcash Inc.
Publisher portfolio 1 listing
2 listings
Listing status Active
Active
Manifest Version 3
Version 3
Permissions & accessRequested capabilities describe access, not developer intent or a safety verdict.
API permissions 6 requested tabs scripting storage activeTab alarms cookies 5 requested cookies storage unlimitedStorage background tabs Website patterns 38 recorded http://localhost:3000/* http://127.0.0.1:3000/* https://api.hydrogen11.io/* https://www.hydrogen11.io/* https://hydrogen11.io/* https://*.vercel.app/* https://hydrogen11-frontend-git-develop-ecomstar-solutions.vercel.app/* https://hydrogen11-backend-development.up.railway.app/* https://hydrogen11-backend-production.up.railway.app/* https://hydrogen11-production.up.railway.app/* https://*.up.railway.app/* *://*.amazon.in/* *://*.amazon.com/* *://*.amazon.co.uk/* *://*.amazon.de/* *://*.amazon.ca/* *://*.amazon.com.au/* *://*.amazon.ae/* *://*.amazon.sa/* *://*.amazon.com.mx/* *://*.amazon.fr/* *://*.amazon.it/* *://*.amazon.es/* *://*.amazon.sg/* *://*.amazon.co.jp/* *://*.amazon.nl/* *://*.amazon.se/* *://*.amazon.pl/* *://*.amazon.com.be/* *://*.amazon.eg/* *://*.amazon.com.br/* *://*.amazon.com.tr/* *://*.amazon.co.za/* *://*.media-amazon.com/* *://*.images-amazon.com/* *://*.ssl-images-amazon.com/* *://*.indiamart.com/* *://lens.indiamart.com/* 52 recorded *://www.amazon.ca/* *://www.amazon.com.mx/* *://www.amazon.com/* *://www.amazon.de/* *://www.amazon.es/* *://www.amazon.fr/* *://www.amazon.it/* *://www.amazon.co.uk/* *://www.amazon.nl/* *://www.amazon.se/* *://www.amazon.pl/* *://www.amazon.com.au/* *://www.amazon.co.jp/* *://www.amazon.in/* *://www.amazon.ae/* *://www.amazon.sa/* *://www.amazon.sg/* *://www.amazon.com.br/* *://www.amazon.ie/* *://*.amazon.ca/ *://*.amazon.com.mx/ *://*.amazon.com/ *://*.amazon.de/ *://*.amazon.es/ *://*.amazon.fr/ *://*.amazon.it/ *://*.amazon.co.uk/ *://*.amazon.nl/ *://*.amazon.se/ *://*.amazon.pl/ *://*.amazon.com.au/ *://*.amazon.co.jp/ *://*.amazon.in/ *://*.amazon.ae/ *://*.amazon.sa/ *://*.amazon.sg/ *://*.amazon.com.br/ *://*.amazon.com.be/ *://*.amazon.com.tr/ *://*.amazon.com.eg/ *://*.amazon.ie/* *://data.ite.tool4seller.com/ *://data.ite.tool4seller.cn/ *://data.tool4seller.com/ *://data.tool4seller.cn/ *://das.ite.tool4seller.com/ *://das.ite.tool4seller.cn/ *://das.tool4seller.com/ *://das.tool4seller.cn/ https://static.tool4seller.com/ https://static.tool4seller.cn/ https://www.google-analytics.com/ Releases Explore the release history Create an account to compare versions and update timing. Your plan controls history depth.
Create your free account Evidence 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 evidence Replace an extension
Your comparison 2 of 2 selected Amazon Keyword And Product Research Extension Tool For Sellers - Hydrogen11 Workflow & Planningtool4seller - Amazon Product Research Extension ToolsSearch by name, then keep two listings in your comparison.