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Bare Bones Software vs Umwelt

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

Bare Bones Software compared with Umwelt
DetailBare Bones Software logo Bare Bones SoftwareUmwelt logo Umwelt
What it doesProfessional software for Mac An epistemic state engine that tracks what each character knows, and how they learned it
StageEstablished Not given
Founded1993 Not given
Based inUS Not given
Pricing modelNot given Open source
PricingNot given AGPL-3.0-only open source license. Commercial license available for closed-source products, services and hosted APIs. Free Play Exception covers free games, mods, interactive fiction and tabletop tools (excluding games with price, in-game purchases, ads, paid content or early access).
Key featuresNot given
  • Tracks what each character knows and how they learned it
  • Prevents AI models from leaking story information or twists
  • Records confirmed history that is never deleted
  • Single portable .umw file for entire world state
  • Works across TypeScript, .NET, CLI and any language via JSON protocol
  • Query from any character's point of view at any moment in time
  • Performance of 55-65 microseconds per query with half a million holdings
  • Free Play Exception for non-commercial games and tabletop tools
What makes it different
  • Professional text editor with 30+ years of refinement
  • Fast performance
  • Separates world state from character knowledge to prevent narrative leakage
  • Guarantees written down with conformance testing across all clients
  • Idempotent writes ensure consistency across retries
  • Works without AI or can control what AI models are allowed to know
  • Open source with commercial licensing option for closed-source products
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)78 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)714
Citation Flow (Majestic)5412
Referring domains (Majestic)81211

2 details filled in for both companies.

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