Free, centralized lab utilities: COA Forensic Auditor, U-100 calculator, and compatibility/reference tools. What’s different: methodology-first checks, traceable outputs, and a clean mobile UX—built to reduce confusion and make decisions auditable.

Hey Product Hunt — I’m Marco, maker of Subject157 Lab Tools. I built these free utilities because research workflows often rely on scattered calculators and unclear steps. This launch brings them into one place: • COA Forensic Auditor (flags + notes + methodology-first checks) • U-100 calculator • Quick reference / compatibility matrices What I’d love feedback on: 1) What signals do you look for in a trustworthy COA workflow? 2) Preferred output: checklist vs shareable report? 3) Any UX friction on mobile? Thanks for checking it out 🙏

Hey Hunters! 👋

I built Subject 157 because I noticed a dangerous gap in the independent research community: Math errors and Blind Trust.

Too many researchers rely on vague calculators or trust PDF reports (COAs) without verifying the data vectors. A single decimal error in a protocol can ruin a month of research—or worse.

I wanted to build a "Digital Fortress" for this data. A place where:

Math is bulletproof: No more guessing "ticks" on a syringe.
Audits are fast: A dedicated tool to scan and verify Purity Reports.
Safety is default: Compatibility matrices to prevent chemical degradation.

It’s free, privacy-focused (no tracking of your protocols), and designed with a forensic UI.

I’d love to hear your feedback on the UX and the Tool Accuracy.

Stay safe, Marco