Rough Logic is a free collection of industry calculators for field workers. The site says it offers 500+ deterministic field-math tools covering electrical work, plumbing and gas, HVAC, restoration, carpentry and construction, fire engineering, food service, logistics, mechanical work, agriculture, water services, education, and more. It is more of a “professional calculation toolkit” than a typical SaaS product with accounts, workflow management, and persistent data storage.
Its core value is turning common field formulas into instant browser-based tools, such as voltage drop, duct sizing, pipe load, and service load calculations. The captured pages also show food-service tools, including recipe scaling, yield calculation, food cooling curves, dish costing and menu pricing, hotel pan conversions, sous-vide pasteurization time, brine/marinade concentration, and more. The site emphasizes “no AI guesswork,” meaning results are based on deterministic calculations, which makes it suitable for quickly checking manual calculations.
The pricing is very clear: free forever, no fee, no signup, no accounts, no ads, and no tracking. For individual technicians and small businesses, the value is strong. However, the captured content does not show team collaboration, role-based permissions, project saving, approvals, audit logs, report exports, SLAs, or enterprise procurement support. It also does not disclose third-party integrations, APIs, or developer support. As a result, it is not suitable as a core enterprise business system, but rather as a lightweight calculation aid.
The site says all calculations run in the browser, with no accounts and no tracking, which reduces the risk of input data being persistently stored by the platform. However, the text does not provide details on encryption, compliance certifications, privacy policy specifics, or data processing agreements. Deployment appears to be via a web browser; self-hosting or private deployment is not mentioned.
Its strengths are that it is free, requires no registration, has no ads, covers many industries, and is ready to use immediately. Its weaknesses are the lack of enterprise-grade collaboration and integration capabilities, and some tools are explicitly positioned as simplified screens or reference calculations only. They cannot replace formal HACCP plans, engineering reviews, or compliance documents. It is best suited for electricians, HVAC technicians, commercial kitchen staff, small business owners, educators, and field engineers who need quick estimates and calculation checks.
Access from China cannot be determined from the text and should be marked as unknown. Since no payment is required, payment issues are not a major concern. If access is unstable, alternatives include industry code handbooks, Excel/spreadsheet templates, Omni Calculator, WolframAlpha, or local professional engineering calculators.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on roughlogic.com official site.
roughlogic.com is an Unknown SaaS Tools provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach roughlogic.com directly.