QRshuffle vs Umwelt

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

QRshuffle compared with Umwelt
Detail	QRshuffle	Umwelt
What it does	Editable QR codes, even after print	An epistemic state engine that tracks what each character knows, and how they learned it
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Open source
Pricing	QRshuffle Lite: $69/year (10 QR codes). QRshuffle Pro: $149/year (unlimited QR codes). QRshuffle License: $199/lifetime (unlimited QR codes, no subscription).	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 features	Change QR code destination link anytime, even after printing Customize QR code colors and add logos Download QR codes in high resolution formats Track scans over time with detailed charts View geographic and country-specific scan data QR size calculator tool UTM builder for campaign tracking Free trial available	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	Editable QR codes that work even after being printed Real-time link updates without reprinting Comprehensive scan analytics with geographic data One-time lifetime license option available	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 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)	11 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	21	4
Citation Flow (Majestic)	32	12
Referring domains (Majestic)	30	1

5 details filled in for both companies.

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