TinkerSim Terms and Conditions

Last updated: April 9, 2026

1. Introduction

These Terms and Conditions ("Terms") form a binding agreement between you and Koelnr Ltd ("TinkerSim," "we," "us," or "our") governing your access to and use of:

the TinkerSim website;
the TinkerSim web application;
related software, content, features, simulations, projects, and services;
support, communications, and any related offerings

(collectively, the "Service").

By accessing or using the Service, you agree to these Terms. If you do not agree, do not use the Service.

If you use the Service on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

2. Eligibility

You may use the Service only if:

you can form a legally binding agreement under applicable law; and
your use of the Service is not prohibited by applicable law.

If you are under the age of majority in your jurisdiction, you may use the Service only with the involvement of a parent, legal guardian, school, institute, or another authorized adult or organization, as applicable.

3. Types of Accounts

TinkerSim supports:

individual accounts for personal use; and
organization accounts for groups such as schools, institutes, clubs, labs, teams, or employers.

For organization accounts:

organization admins may manage users, roles, and access;
content and account administration may be subject to organization settings;
your organization may have additional terms or policies that apply.

Teachers may function as organization admins where applicable, but TinkerSim is not limited to school use.

4. Changes to the Service

We may modify, suspend, or discontinue parts of the Service from time to time, including features, pricing, integrations, or availability.

We will try to provide reasonable notice where practical for material adverse changes, but we do not guarantee that every feature will remain available forever. Software, naturally, is a moving target with delusions of permanence.

5. Account Registration and Security

You are responsible for:

providing accurate account information;
keeping your login credentials secure;
maintaining the confidentiality of your account;
all activity occurring under your account, unless caused by our failure to use reasonable security measures.

You must promptly notify us at support@tinkersim.com if you believe your account has been compromised.

6. Acceptable Use

You agree not to, and not to allow others to:

use the Service unlawfully or in violation of applicable regulations;
interfere with or disrupt the Service or its infrastructure;
attempt unauthorized access to accounts, data, or systems;
upload malware, malicious code, or harmful content;
use the Service to infringe intellectual property or other rights;
reverse engineer, decompile, or attempt to extract source code except where prohibited by law and only to the limited extent permitted;
use automated systems to scrape, overload, or abuse the Service without our written permission;
circumvent access controls, rate limits, quotas, plan restrictions, or security measures;
use the Service for fraudulent, abusive, or deceptive purposes.

If the Service offers code compilation, simulation backends, or other compute-intensive functions, you may not use them in a way that is abusive, excessive, or intended to bypass usage limits.

7. User Content

7.1 Ownership

You retain ownership of your projects, files, text, uploaded content, and other materials you submit to the Service (collectively, "User Content"), subject to the rights you grant below.

7.2 License to TinkerSim

You grant TinkerSim a non-exclusive, worldwide, royalty-free license to host, store, reproduce, process, modify, transmit, and display your User Content solely as necessary to:

operate and provide the Service;
save and sync your projects;
maintain security and backups;
provide support you request;
improve Service functionality using aggregated or de-identified information.

We do not claim ownership of your User Content.

7.3 Responsibility for User Content

You are responsible for ensuring that you have all rights necessary to upload or use your User Content and that it does not violate law or third-party rights.

8. Organization Content and Administration

If you use TinkerSim through an organization:

the organization may control your access to the Service;
organization admins may access, manage, or remove certain organization content and user data within the workspace;
projects created in an organization context may be visible or manageable according to that organization’s settings and policies.

Disputes about organization-managed access or content should first be addressed with the organization administrator.

9. Intellectual Property Rights in the Service

The Service, including its software, design, branding, interface, documentation, graphics, and underlying technology, is owned by or licensed to TinkerSim and is protected by intellectual property and other laws.

Except for the limited rights expressly granted in these Terms, TinkerSim reserves all rights.

You may not use TinkerSim’s name, trademarks, logos, or branding without prior written consent.

10. Feedback

If you provide feedback, suggestions, ideas, or recommendations regarding the Service, you grant TinkerSim a non-exclusive, perpetual, irrevocable, worldwide, royalty-free license to use and incorporate that feedback without restriction or compensation to you.

11. Plans, Trials, and Payments

If we offer paid plans, subscriptions, trials, or credits:

plan features, limits, and pricing will be described at the point of purchase or in an order form;
fees are payable in the currency shown at checkout or in the applicable order form;
subscriptions may renew automatically unless canceled before renewal, where allowed by law and disclosed at purchase;
taxes may be added where required;
fees are generally non-refundable except as required by law or expressly stated otherwise.

If you purchase through a third-party payment processor, your payment may also be subject to that processor’s terms and privacy policy.

12. Beta Features

We may label some features as alpha, beta, preview, early access, or similar. These features may be incomplete, unstable, or changed or removed at any time.

Beta features are provided "as is" and may be subject to additional terms.

13. Availability and Support

We do not promise uninterrupted or error-free operation of the Service.

We may perform maintenance, updates, and emergency changes that affect availability.

Any support commitments, response times, or onboarding services for organization customers should be defined in the applicable plan, order form, or separate agreement.

14. Third-Party Services and Integrations

The Service may integrate with or rely on third-party providers, such as identity providers, infrastructure providers, payment processors, analytics vendors, communication platforms, or similar tools.

We are not responsible for third-party services we do not control, and your use of those services may be subject to their own terms.

15. Privacy

Your use of the Service is also subject to our Privacy Policy, which explains how we collect, use, and disclose personal data.

16. Suspension and Termination

We may suspend or terminate your access to the Service, in whole or in part, if:

you violate these Terms;
your use presents a security or legal risk;
your use is abusive, fraudulent, or materially harms the Service or others;
we are required to do so by law.

You may stop using the Service at any time.

Upon termination, your right to use the Service ends immediately, but provisions that by their nature should survive termination will remain in effect, including sections on intellectual property, disclaimers, limitations of liability, indemnity, disputes, and payment obligations already incurred.

17. Data Export and Deletion After Termination

Where functionality exists, you may be able to export your content before account closure. We may retain certain information after termination as required or permitted by law, for security, fraud prevention, dispute resolution, backup integrity, or compliance.

Organization accounts may be subject to organization-controlled retention settings or contractual terms.

18. Disclaimers

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SERVICE IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS.

TINKERSIM DISCLAIMS ALL WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE.

We do not guarantee that:

the Service will be uninterrupted, secure, or error-free;
simulations, outputs, or calculations will always be accurate for every use case;
the Service will meet every requirement or expectation;
defects will always be corrected.

TinkerSim is a learning, prototyping, and simulation tool. It is not a substitute for professional engineering validation, safety review, or regulatory certification where those are required.

19. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, TINKERSIM AND ITS AFFILIATES, OFFICERS, EMPLOYEES, CONTRACTORS, AND LICENSORS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, BUSINESS, GOODWILL, DATA, OR USE, ARISING OUT OF OR RELATED TO THE SERVICE OR THESE TERMS.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE TOTAL AGGREGATE LIABILITY OF TINKERSIM FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS WILL NOT EXCEED THE GREATER OF:

THE AMOUNT YOU PAID TO TINKERSIM FOR THE SERVICE IN THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM; OR
USD $100 (OR THE EQUIVALENT IN LOCAL CURRENCY).

Nothing in these Terms excludes or limits liability that cannot be excluded under applicable law.

20. Indemnity

To the extent permitted by law, you agree to defend, indemnify, and hold harmless TinkerSim and its affiliates, officers, employees, contractors, and licensors from and against claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or related to:

your use of the Service;
your User Content;
your violation of these Terms;
your violation of applicable law or third-party rights.

This indemnity does not apply to the extent a claim results from TinkerSim’s own gross negligence, willful misconduct, or other liability that cannot be limited under law.

21. Export Controls and Sanctions

You may not use the Service in violation of applicable export control, sanctions, or trade compliance laws. You represent that you are not prohibited from using the Service under applicable law.

22. Governing Law and Dispute Resolution

22.1 Governing Law

These Terms are governed by the laws of India, excluding conflict of laws rules, unless mandatory local law requires otherwise.

22.2 Informal Resolution

Before filing a formal claim, you agree to first contact us at legal@tinkersim.com and attempt to resolve the dispute informally for at least 30 days.

22.3 Courts

Any dispute arising out of or relating to these Terms will be subject to the exclusive jurisdiction of the courts located in Ludhiana, Punjab, India, except where local law grants you the right to bring claims elsewhere.

23. Consumer Rights

Nothing in these Terms limits any non-waivable rights you may have under applicable consumer protection law, including rights under laws in the United States, European Union, United Kingdom, India, or other jurisdictions.

24. Changes to These Terms

We may update these Terms from time to time. When we do, we will update the “Last updated” date and may provide additional notice where required.

If you continue to use the Service after updated Terms become effective, the updated Terms will apply, except where applicable law requires additional consent.

25. General Terms

25.1 Entire Agreement

These Terms, together with our Privacy Policy and any applicable order forms, plan terms, or additional policies, form the entire agreement between you and TinkerSim regarding the Service.

25.2 Severability

If any provision of these Terms is found unenforceable, the remainder will remain in effect to the maximum extent permitted by law.

25.3 No Waiver

A failure to enforce any provision is not a waiver of that provision.

25.4 Assignment

You may not assign these Terms without our prior written consent. We may assign these Terms as part of a merger, acquisition, reorganization, or sale of assets, or by operation of law.

25.5 Force Majeure

We are not liable for delays or failures caused by events beyond our reasonable control, including natural disasters, labor disputes, war, terrorism, civil unrest, infrastructure outages, internet failures, governmental action, or third-party service failures.

26. Contact Information

For questions about these Terms, contact us at:

Email: support@tinkersim.com
Website: https://tinkersim.com