Terms and Conditions

Natsura License Summary

This is a summary of the Natsura End-User License Agreement (EULA).
The EULA is the binding contract; this section explains it in plain terms.

What you can do

Use Natsura according to the license tier you purchased.
Create, sell, and share your own assets made with Natsura — they remain your property.
Install Natsura on up to two personal devices (e.g. workstation and laptop) as the same user.
Upgrade your license when your revenue or funding exceeds your current tier.

What you cannot do

Share or redistribute Natsura or its license keys.
Reverse-engineer or tamper with the software or its protection system.
Use Natsura or its outputs to train AI or machine-learning models under any circumstance, unless you have written permission from both George Hulm and Feike Postmes.
Exceed the seat limits of your tier without upgrading.

License tiers

Apprentice — Free, non-commercial learning.
Indie — Revenue or funding under USD 100,000/year, up to 3 seats.
Pro — Revenue or funding between USD 100,000 – 1,000,000/year, up to 3 seats.
Studio — Revenue or funding over USD 1,000,000/year, up to 6 seats.
Enterprise — More than 6 seats or custom deployment (bespoke contract).

Payment models

Monthly / Annual Subscription – Active access with updates included.
Perpetual License – One-time purchase of a specific major version.

Other important points

Natsura is provided “as is”, without warranties.
If you breach the terms, your license may be suspended or terminated.
Liability is limited (see full EULA).
We collect minimal telemetry for licensing and updates (see Privacy Notice).

In short: Use Natsura to make and sell your own work.
Don’t share the tool, exceed your tier, or train AI with it without our written consent.

Natsura End-User License Agreement (EULA)

Last Updated: 9th October 2025

This End-User License Agreement (“Agreement”) is a legal contract between you (“Licensee”) and Woodhead, a French société par actions simplifiée (SAS) registered under SIREN 992 285 528 with its registered office at 17 Rue du Maquis, 86000 Poitiers, France (“Licensor”).

The software known as Natsura is owned by George Hulm and Feike Postmes (the “IP Owners”).
Woodhead acts as the authorized licensing, distribution, and enforcement agent for the IP Owners and is authorized to enforce this Agreement and initiate legal action on their behalf.

By installing or using Natsura, you agree to this Agreement. If you do not agree, do not install or use the Software.

1. Definitions

Software – The Natsura application, plug-ins, updates, and related materials.
Customer Assets – Works you create using the Software (e.g. 3D models, textures, renders).
License Models – Apprentice, Indie, Pro, Studio, Enterprise.
Revenue or Funding – The Licensee’s (and its affiliates’) total gross annual revenue or total funding, including investments, grants, or subsidies, from any activity directly or indirectly benefiting from or involving the Software.
Seat – A single named-user authorization tied to one machine.

2. Ownership and Licensing Authority

The IP Owners retain full ownership of all intellectual property in the Software.
Woodhead is authorized to grant end-user licenses, collect payments, provide support, and enforce this Agreement on behalf of the IP Owners.

This arrangement does not transfer or assign ownership of the Software to Woodhead.
If the IP Owners later transfer ownership or licensing rights to Woodhead (or another successor entity), all existing end-user licenses remain valid under their original terms.
Any such transfer will be notified in writing to all affected licensees.

3. License Models and Entitlements

Apprentice (Free)

Non-commercial use only.
No support guarantee.

Indie (Revenue or Funding < USD 100,000)

Commercial use permitted.
Includes updates during an active subscription.
Standard support (forum, documentation, email).
Limited to three (3) seats per organization or individual.
Additional seats require upgrade to Pro or Studio.

Pro (USD 100,000 – 1,000,000)

Commercial use permitted.
Includes updates during an active subscription.
Standard support.
Limited to three (3) seats per organization.
Additional seats require upgrade to Studio or Enterprise.

Studio (Revenue or Funding ≥ USD 1,000,000)

Commercial use permitted.
Includes updates during an active subscription.
Priority support (direct contact, faster SLA).
Limited to six (6) seats per organization.
Additional seats require an Enterprise contract.

Enterprise (Custom)

For organizations requiring more than six (6) seats, floating/network licensing, or bespoke SLAs.
Custom terms apply.

Tier Compliance
If you exceed the revenue or seat limits of your tier, you must upgrade within thirty (30) days.

4. Payment Models

Monthly Subscription – Access for the subscription term; updates included.
Annual Subscription – Same as monthly, billed annually at a discounted rate.
Perpetual License – One-time purchase for a specific major version; updates and fixes until the next major release.

All fees are exclusive of taxes. You are responsible for any applicable VAT or similar taxes except those on Licensor’s net income.

5. Grant of License and Use Limits

Licensor grants you a non-exclusive, non-transferable, non-sublicensable license to install and use the Software solely to produce Customer Assets within your tier and seat limits.

Each seat is node-locked to a device. You may install on up to two personal devices per seat (e.g. workstation and laptop) for use by the same user, not simultaneously.
Seat sharing or pooling is prohibited.
You may reassign a seat up to twice per calendar year, or more frequently at the Licensor’s discretion upon written request.
Reasonable reassignment (e.g. hardware replacement, staff turnover) is permitted within technical limits.

Pro, Studio, and Enterprise tiers may purchase multiple seats up to their tier maximums.
Floating or network licensing is allowed only under an Enterprise contract.

6. Ownership of Outputs

All intellectual property in the Software remains with the IP Owners.
You retain ownership of all Customer Assets you create using the Software and may use, sell, or distribute them freely, subject to third-party rights and applicable law, and the restrictions below.

7. Restrictions and AI / Machine Learning Use

You shall not:

Sell, rent, lease, sublicense, lend, or distribute the Software.
Share or redistribute license keys or activation files.
Reverse-engineer, decompile, or disassemble the Software except as permitted by law.
Circumvent license or copy-protection mechanisms.
Remove or obscure copyright notices.

AI / Machine Learning Use

You may not use the Software, or any Customer Assets generated with it, to train, fine-tune, evaluate, or develop any artificial intelligence or machine-learning system for any purpose whatsoever — commercial, academic, internal, or otherwise — without the prior written permission of both IP Owners (George Hulm and Feike Postmes).

This restriction includes, without limitation:

Using renders, models, procedural data, or simulation outputs from the Software as part of any dataset or process used to train or evaluate AI or ML models;
Generating datasets derived from the Software or its outputs, whether directly or indirectly;
Incorporating the Software or its outputs into any pipeline or system that contributes to model training, fine-tuning, or evaluation;
Sharing, redistributing, or publishing any such data or models, whether commercially or non-commercially.

Any such use requires an explicit written agreement signed by both IP Owners.
No exceptions or implied permissions apply.

In short: No AI training, dataset creation, or machine-learning use of Natsura or its outputs — unless both George Hulm and Feike Postmes have granted written consent.

8. Verification and Audit

Licensor may, upon at least ten (10) business days’ written notice and no more than once every twelve (12) months, conduct an audit of your use of the Software to verify compliance with this Agreement, including but not limited to tier eligibility, seat usage, and revenue declarations.

Audits shall be conducted remotely or through written verification, and limited to records reasonably necessary to confirm compliance (such as license activations, seat assignments, or relevant financial summaries).
You must cooperate fully and provide accurate information within the notice period.

Refusal or material obstruction of an audit request constitutes a material breach of this Agreement.

If the audit reveals underpayment, underreporting, or non-compliance exceeding five percent (5%) of amounts due or seats declared, you must immediately:

Pay all shortfalls,
Reimburse Licensor for reasonable audit costs, and
Upgrade your license tier if required.

Licensor may suspend access to the Software for unremedied breaches until compliance is verified.

9. Privacy and Telemetry

The Software may collect limited technical data (e.g. license status, version, OS, anonymous usage metrics) to enforce licensing and improve functionality.
Personal data, if any, is processed according to Licensor’s Privacy Notice and in compliance with GDPR and applicable law.

10. Third-Party Components

The Software may include third-party libraries or open-source components under separate licenses, detailed in the “NOTICES” file or documentation.
Those licenses govern their respective components.

11. Export Control and Compliance

You agree to comply with all applicable export and sanctions laws and will not use or transfer the Software in violation of such laws.

12. Support and Updates

Support levels correspond to your tier.
Subscription and perpetual licenses include updates as specified in your plan.
Licensor is not obliged to provide future updates beyond those terms.

13. Warranty Disclaimer

THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE”.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, LICENSOR AND THE IP OWNERS DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

14. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, LICENSOR AND THE IP OWNERS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR LOSS OF PROFITS, DATA, OR BUSINESS.
TOTAL LIABILITY UNDER THIS AGREEMENT SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE SOFTWARE IN THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM.
NOTHING EXCLUDES LIABILITY THAT CANNOT BE EXCLUDED BY LAW.

15. Term and Termination

This Agreement remains in effect until terminated.
Licensor may suspend or terminate immediately for willful misconduct (piracy, fraud, deliberate circumvention, unauthorized redistribution).
For other breaches, the Licensee will have thirty (30) days to remedy upon notice.

Upon termination, you must stop using the Software and delete all copies.
Customer Assets created before termination remain your property.
Termination does not affect accrued payment obligations.

16. Governing Law and Dispute Resolution

This Agreement is governed by the laws of France.

Any dispute, controversy, or claim arising out of or relating to this Agreement shall be finally resolved by arbitration under the Rules of Arbitration of the International Chamber of Commerce (ICC).

The seat of arbitration shall be Paris, France.
The language of arbitration shall be English, and the English version of this Agreement shall be the authoritative text in all proceedings.

If arbitration is deemed unenforceable, disputes shall be subject to the exclusive jurisdiction of the courts of Paris, France.

The United Nations Convention on Contracts for the International Sale of Goods does not apply.

17. Assignment

You may not assign or transfer this Agreement without Licensor’s prior written consent, except to a successor in a bona fide merger or acquisition, provided the successor is not a competitor and agrees in writing to be bound by these terms.
Licensor may assign or delegate its rights and obligations to its affiliates or successors.

18. Force Majeure

Neither party is liable for delay or failure to perform due to causes beyond reasonable control (e.g. natural disasters, war, civil unrest, labor disputes, power or internet failures, government actions).

19. Changes to the Software or Terms

Licensor may modify the Software or this Agreement.
Material changes will be announced via the Software, website, or direct email notice.
Your continued use after such changes take effect constitutes acceptance.
For perpetually licensed versions, new terms apply only to updates you choose to install.

20. Severability, Survival, and Entire Agreement

If any provision is held unenforceable, the remainder remains effective.
This Agreement is the entire agreement between you and the Licensor regarding the Software and supersedes any prior terms or representations.
Failure to enforce any provision does not constitute a waiver.

Sections 2, 6, 7, 8, 13, 14, 16, and 20 shall survive termination.
In case of translation discrepancies, the English version of this Agreement shall prevail.

Questions?

Email: support@natsura.com