End User License Agreement

Subject to your compliance with this EULA and payment of the applicable fee, we grant you a limited, personal, non-exclusive, non-transferable, revocable license to install and use the EPIC Writing App on devices you control, subject to the activation limits associated with your license. This license is for the executable software only and does not give you ownership of the software, source code, or any intellectual property rights in the software.

The software is sold as a one-time purchase for the price displayed at checkout, currently $149 USD unless otherwise stated. Minor updates, bug fixes, and patches may be included at no additional charge. Major new versions, if offered, may be sold separately for an additional fee.

Your license allows activation on up to three (3) machines at one time, unless your checkout page or license details state otherwise. You may deactivate a machine and move your activation to another device in accordance with the activation tools or procedures we provide. We may use license keys, online checks, or similar controls to enforce activation limits and prevent abuse.

You may use the software for personal or business purposes, subject to this EULA, the Terms of Service, and any applicable law. You may use it offline, store content locally, and use the features available in the version you purchased, including note creation, writing, wiki creation, maps, export features, music playback, and AI-related functionality.

You may not:

• Copy, modify, distribute, resell, rent, lease, sublicense, or transfer the software except as expressly permitted.
• Reverse engineer, decompile, disassemble, or attempt to derive source code, except where such restrictions are prohibited by law.
• Bypass activation limits, license checks, or security controls.
• Use the software to violate law, infringe intellectual property rights, or engage in fraud, abuse, harassment, or malware distribution.
• Remove or alter proprietary notices or branding.
• Use the software in any way not expressly authorized by this EULA.

Some features may require an account, but the software license is separate from the account itself. We may use your email address, order information, and license status to validate your rights to use the software, but the software is otherwise designed to store your content locally on your device.

The software may allow you to enter your own API keys for third-party providers such as Anthropic, OpenAI, OpenRouter, Replicate, or similar services. Those keys are saved on your device and are not accessible to us. If you use third-party services through the software, your use of those services is subject to their separate terms and policies, and you are responsible for complying with them.

The software may generate text, images, or other content using local models or third-party AI providers. AI output may be inaccurate, incomplete, offensive, or inappropriate, and may require human review before use. You are solely responsible for evaluating and using any generated output, including output created with your own keys or through third-party services.

We and our licensors retain all right, title, and interest in and to the software, including all intellectual property rights. Except for the limited license expressly granted in this EULA, no rights are granted to you by implication, estoppel, or otherwise.

You retain whatever rights you have in the content you create or store locally using the software. This is subject to the permissions needed for the software to operate and any rights you grant to third-party providers when you choose to transmit content to them. You represent that you have the rights necessary to use any content you input into the software.

We may provide support, bug fixes, updates, or improvements at our discretion unless otherwise stated in writing. We may also change features, discontinue features, or change the software's technical requirements over time, provided we remain consistent with applicable law and any express product commitments.

THE SOFTWARE IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT, TO THE MAXIMUM EXTENT PERMITTED BY LAW. WE DO NOT WARRANT THAT THE SOFTWARE WILL BE ERROR-FREE, UNINTERRUPTED, OR COMPATIBLE WITH EVERY DEVICE, SYSTEM, OR THIRD-PARTY SERVICE.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT WILL DARK MATTER LABS BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR FOR LOSS OF DATA, PROFITS, REVENUE, GOODWILL, OR BUSINESS INTERRUPTION, ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE SOFTWARE. OUR TOTAL LIABILITY FOR ANY CLAIM ARISING UNDER THIS EULA WILL NOT EXCEED THE AMOUNT YOU PAID FOR THE SOFTWARE GIVING RISE TO THE CLAIM, OR THE MINIMUM AMOUNT REQUIRED BY LAW, WHICHEVER IS GREATER.

All sales are final and non-refundable to the maximum extent permitted by law. Because the software is delivered digitally and may be made available immediately after purchase, refunds are generally not available after delivery, except where required by law or where we expressly choose to issue one. Any non-waivable consumer rights remain unaffected. See our full Refund Policy.

This EULA is effective until terminated. We may terminate or suspend your license immediately if you violate this EULA, misuse the software, bypass activation limits, or engage in unlawful activity. Upon termination, you must stop using and delete the software and any copies in your possession, except to the extent a law requires otherwise.

You agree to comply with all applicable laws and regulations, including laws governing software use, consumer protection, sanctions, export controls, and data protection. You may not use the software in any jurisdiction where the software or its use would be unlawful.

This EULA is governed by the laws of the State of Texas, without regard to conflict-of-law principles, except where mandatory consumer protection laws require otherwise. This aligns with the governing law in our Terms of Service.