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Refactron™ vs Planby

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

Refactron™ compared with Planby
DetailRefactron™ logo Refactron™Planby logo Planby
What it doesThe verification layer for AI code change Sovereign AI for construction that runs in your secure environment
StageMVP Not given
FoundedNot given 2023
Based inNot given US
Pricing modelFreemium Not given
PricingFree plan: $0/mo with 500 verifications/mo and unlimited local CLI runs. Pro: $59/mo with 10,000 verifications/mo (early access). Scale: $300/mo with 100,000 verifications/mo (early access). Enterprise: Custom pricing (early access). Not given
Key features
  • Verify arbitrary diffs from agents, codemods, or humans
  • Three-verdict system: SAFE, UNSAFE, UNPROVEN
  • Runs test suite on isolated shadow tree copy
  • Changed-line coverage attestation for Python
  • Reproducible verification report with audit-grade record
  • MCP server for AI agents to verify before landing
  • CI gate that blocks unsafe merges
  • Syntax and imports validation gates
  • Runs locally with no code upload to external service
  • Organizes drawings, specs, site photos and design standards into unified building models
  • Links data through 15 layers by trade, element, space and code
  • Every review and calculation cites source drawings and clauses
  • AI agents that understand buildings with documents in one secure model
  • Design AI with style reference and deep reasoning for variations
  • Converts 2D drawings to BIM models for review
  • Provides building law guidance connected in one AI assistant
  • Generates RFI answers for structural review from site photos
What makes it different
  • Only system that proves changed lines are actually tested, not just that tests pass
  • Works with any AI coding agent and integrates via MCP
  • Code never leaves your machine; runs entirely locally
  • Free local CLI with unlimited verifications, paid only for managed infrastructure
  • Deployed in customer secure environments, not cloud-based
Community votes00
DR (Domain Rating by Ahrefs)2 no change since last check11 no change since last check
Trust Flow (Majestic)02
Citation Flow (Majestic)1526
Referring domains (Majestic)445

3 details filled in for both companies.

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