TrustTheCalcs vs ylishi.tools

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

TrustTheCalcs compared with ylishi.tools
Detail	TrustTheCalcs	ylishi.tools
What it does	Construction calculators that show their math	Free Amazon FBA calculators and seller tools with verified 2026 fee rates
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	CN
Pricing model	Free	Freemium
Pricing	Not given	Free core tools with no signup. Pro plan: $29.99/month or $299/year (save 17%). One-time fee audit service: $299 for up to 50 SKUs, $4 per extra SKU.
Key features	Every constant cited to ASTM, CMHA, or datasheet Two calculation methods shown separately Free and private, no account required	FBA Profit Calculator with all hidden fees PPC Analyzer for ACOS and ROAS calculation Fee Simulator comparing fulfillment methods Listing Grader with optimization tips Review Analyzer for competitive insights Inventory Optimizer with restock alerts Cost Tracker for expense management Real-time exchange rate conversion updated every 5 minutes
What makes it different	Every constant traced to named source and shown next to result Shows both methods when they disagree instead of averaging them Solves massive discrepancy in published block fill volumes Calculations run in browser with no data storage Built on version-controlled, auditable reference data modules	50+ free tools with no signup, login or credit card required Fee rates verified monthly with open-source data published under CC BY 4.0 Built by an 8-year Amazon FBA seller addressing real seller pain points Supports multiple marketplaces: Amazon US/EU/UK/JP/CA/AU, Temu, TikTok Shop, and Etsy Transparent formulas using industry-standard calculations verifiable by users
Community votes	0	0
DR (Domain Rating by Ahrefs)	8 no change since last check	23 no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	22	16
Referring domains (Majestic)	7	10

4 details filled in for both companies.

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