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TUWA vs Craft Quantities

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

TUWA compared with Craft Quantities
DetailTUWA logo TUWACraft Quantities logo Craft Quantities
What it doesOpen-source TypeScript toolkit for wallet connection, multi-chain sign-in and transaction tracking on EVM and Solana Free JSON API for construction calculators with test vectors and building codes
StageStartup Not given
Founded2025 Not given
Based inUA Not given
Pricing modelOpen source Open source
PricingAll client packages are free under Apache-2.0. Quasar Cloud is free during public beta with 1,000 free quota units per organization. Quasar Community Edition is free and self-hosted. Free under CC BY 4.0 licence
Key features
  • Wallet connection for EVM and Solana wallets
  • Multi-chain sign-in with CAIP-122 (SIWX)
  • Transaction tracking that survives page reloads
  • React UI components with theming
  • Server-side transaction history and webhooks
  • Self-hosted backend option
  • No telemetry collection
  • Docker Compose deployment for Community Edition
  • 1,173 construction calculators with full inputs and test vectors
  • 3,485 published test vectors for validation
  • No authentication key or rate limits required
  • Citations to building standards with section numbers
  • Executable API for running calculations on request
  • MCP server integration for AI assistants
  • 79 job takeoffs with calculator sequences
  • Cross-market glossary in US, Canadian, UK and Australian usage
  • Corrections ledger tracking confirmed errors
  • Unit conversion with exact statutory factors
What makes it different
  • Open-source with Apache-2.0 license and no vendor lock-in
  • No monthly active user (MAU) pricing model
  • Supports both EVM and Solana chains natively
  • Local-first state that persists and survives page reloads
  • Follows open wallet standards (CAIP-122, EIP-6963, Wallet Standard)
  • No API key required with no rate limits or quotas
  • CC BY 4.0 licence allows commercial use and redistribution
  • Every calculation cited to specific building code sections
  • Pinned test cases prevent silent changes to published figures
  • Complete accessibility with CORS support for browser use
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)Not checked yet no change since last checkNot checked yet
Trust Flow (Majestic)00
Citation Flow (Majestic)1326
Referring domains (Majestic)329

5 details filled in for both companies.

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