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Free, private break-even and pricing calculators that work offline. **The Stack Matrix – Business Tools & Calculators** Make smarter business decisions with The Stack Matrix. Access practical business tools and calculators designed to help entrepreneurs, freelancers, and small business owners evaluate costs, estimate profitability, explore pricing, and plan with greater confidence. Whether you're starting a business, reviewing your pricing, or evaluating a new opportunity, The Stack Matrix helps simplify business calculations and turn numbers into actionable insights. Install The Stack Matrix to discover useful business resources, explore financial planning tools, and connect with a growing collection of practical solutions for running and growing your business. **Plan smarter. Calculate confidently. Build your business.**
Oct 10, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.