Kōōihaus™ vs Lifetime QR Codes

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

Kōōihaus™ compared with Lifetime QR Codes
Detail	Kōōihaus™	Lifetime QR Codes
What it does	Free paint coverage calculator for interior and exterior painting projects	Editable QR codes you pay for once, with no monthly subscription
Stage	Established	Startup
Founded	2021	2024
Based in	US	US
Pricing model	Free	Paid
Pricing	Not given	$50 per code (one-time payment). Volume discounts: 3 codes at $43/ea ($129 total, 14% off); 5 codes at $39/ea ($195 total, 22% off); 10 codes at $36/ea ($360 total, 28% off); 25 codes at $33/ea ($825 total, 34% off); 50 codes at $31/ea ($1,550 total, 38% off); 100 codes at $29/ea ($2,900 total, 42%
Key features	Interior paint calculator Exterior paint calculator Metric and imperial units Primer calculation option Ceiling painting option Gable area calculation for exterior Instant results display	Editable QR codes that can be changed after printing without reprinting Unlimited scans forever with no throttling or overage charges Custom logo and color support for QR codes High-resolution exports in PNG, SVG, PDF and EPS formats 24/7 human customer support via chat, email and phone 30-day money-back guarantee on first code 99.9% uptime target backed by enterprise infrastructure
What makes it different	Handles complex calculations like doors, windows, and multiple stories automatically Works for both interior and exterior projects	One-time payment model instead of recurring monthly subscriptions for QR codes Published service continuity guarantee with 120 days notice and 10 years of continued service if company shuts down Codes stay active indefinitely even if you never log in again or cancel your account Backed by QRTRAC, an established enterprise QR platform running in production since 2022 Fair pricing for small businesses without lock-in or forced upgrades
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	20 no change since last check	12 no change since last check
Trust Flow (Majestic)	4	7
Citation Flow (Majestic)	23	27
Referring domains (Majestic)	37	27

7 details filled in for both companies.

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