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Kōōihaus™ vs UPCgen

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 UPCgen
DetailKōōihaus™ logo Kōōihaus™UPCgen logo UPCgen
What it doesFree paint coverage calculator for interior and exterior painting projects Free barcode generator for UPC, EAN, ISBN, and other retail barcodes
StageEstablished Not given
Founded2021 Not given
Based inUS Not given
Pricing modelFree Freemium
PricingNot given Free: 5 codes per day. Starter $9/month (100 codes/month, PNG download, all 9 barcode types, API access). Pro $29/month (3,000 codes/month, bulk CSV, SVG/PDF/EPS exports, Avery+FBA label sheets, API access). Business $99/month (25,000 codes/month, everything in Pro, 5 team seats, priority support).
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
  • Generate UPC, EAN-13, EAN-8, UPC-E, ISBN, ITF-14, Code 128, FNSKU, and Data Matrix barcodes
  • Valid check digits passing GS1 standard validation
  • Bulk generation up to 10,000 codes at once
  • Export to CSV, PNG, PDF, SVG, and EPS formats
  • Avery and FBA label sheets
  • REST API for developers
  • Bulk CSV upload and download
  • Free registration with no card required
  • Platform compliance for Amazon, Shopify, Etsy, eBay, Walmart
What makes it different
  • Handles complex calculations like doors, windows, and multiple stories automatically
  • Works for both interior and exterior projects
  • Simple, single-page interface without bloated software or confusing options
  • Valid barcodes that download cleanly in multiple professional formats
  • Supports 50+ e-commerce and retail platforms
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)20 no change since last check39 no change since last check
Trust Flow (Majestic)410
Citation Flow (Majestic)2330
Referring domains (Majestic)37138

4 details filled in for both companies.

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