Licensing
Gestura AI software is source-available under the Gestura Prosperity Software License 1.1 (GPSL-1.1).
One license across the Gestura ecosystem — Gestura.app, the Haptica Harmony firmware, the simulator, and our developer tooling. Free for most users; larger commercial operations contribute a small share of revenue to sustain development.
Our Philosophy
Anyone should be able to study, learn from, and build upon our work — and the project should be able to sustain itself. The GPSL keeps our source open to read, modify, and share, while asking commercial operations above $1M in revenue to contribute back.
Ideas stay free. Anyone may implement the same concepts their own way — the license protects our specific code, not the idea of gesture-driven computing.
Free Use
Personal Use
Hobbyists, students, and researchers using Gestura software non-commercially
Education & Research
Universities, schools, and public research organizations, regardless of funding source
Non-Profits & Government
Charitable, public-safety, health, environmental, and government institutions
Small Business
Any company (with affiliates) under $1M USD annual gross revenue
Evaluation
A single 90-day commercial trial to test suitability
Contributors
Improvements contributed back to Gestura under a standard public license
Commercial Use (>$1M Revenue)
Option A: Attributable Revenue
3%
of revenue from products or services using Gestura software
Option B: Total Revenue
0.5%
of total annual gross revenue — the simpler calculation
You elect Option A or B in your first annual compliance report; the election is binding for that fiscal year. Contributions are due within 90 days of fiscal year end. Fixed-fee enterprise, partner, and OEM licenses are available as alternatives.
Enterprise, Partner & OEM
Is this open source?
No — and we say so plainly. The GPSL is a source-available license, not an OSI-approved open-source license, because of its revenue-sharing condition. The source is fully visible and auditable, you can modify and redistribute it with notices intact, and most users pay nothing.
Full License Text
The complete GPSL-1.1 text ships in every Gestura repository. Version 1.1 (July 2026) hardened the 1.0 text — definitions, election mechanics, cure periods, audit limits, trademark reservation — without changing rates or free-use categories. Recipients of 1.0 may stay on 1.0 or adopt 1.1.
View LICENSE on GitHubQuestions?
licensing@gestura.ai — we're here to help, not to trap anyone.