Last updated: August 19, 2026
These Terms of Service ("Terms") constitute a legally binding agreement between you and Dara Lee Luca, doing business as Numbercade ("Company," "we," "us," or "our"), concerning your access to and use of the numbercade.com website and all related services (collectively, the "Services").
By accessing or using the Services, you agree that you have read, understood, and agree to be bound by all of these Terms. If you do not agree with all of these Terms, you are prohibited from using the Services and you must discontinue use immediately.
We reserve the right, in our sole discretion, to make changes or modifications to these Terms at any time and for any reason. We will alert you about any changes by updating the "Last updated" date of these Terms, and you waive any right to receive specific notice of each such change. It is your responsibility to periodically review these Terms to stay informed of updates. You will be subject to, and will be deemed to have been made aware of and to have accepted, the changes in any revised Terms by your continued use of the Services after the date such revised Terms are posted.
The Services are intended for users who are at least 13 years of age. Children under the age of 13 may use the Services only under the supervision and with the consent of a parent or legal guardian who has agreed to these Terms. Parents and legal guardians who allow their children to use the Services are responsible for monitoring and supervising their children's use.
Numbercade provides free, browser-based math games designed for students in grades 4 through 8. The Services are provided entirely through the website with no downloads required.
Key characteristics of the Services include:
The information provided through the Services is not intended for distribution to or use by any person or entity in any jurisdiction or country where such distribution or use would be contrary to law or regulation.
Unless otherwise indicated, the Services, including all source code, databases, functionality, software, website designs, audio, video, text, photographs, graphics, game content, math questions, and lesson materials (collectively, the "Content"), as well as the trademarks, service marks, and logos contained therein (the "Marks"), are owned or controlled by us or licensed to us and are protected by copyright and trademark laws and various other intellectual property rights.
The Content and the Marks are provided through the Services "AS IS" for your personal, non-commercial use only.
License Grant. Subject to your compliance with these Terms, we grant you a non-exclusive, non-transferable, revocable license to access and use the Services and to view, play, and interact with the Content solely for your personal, non-commercial, educational use. This license does not include any right to reproduce, distribute, modify, create derivative works of, publicly display, publicly perform, republish, download, store, or transmit any of the Content, except as incidentally necessary to use the Services as intended (for example, your browser may temporarily cache Content in normal operation).
No part of the Services, Content, or Marks may be copied, reproduced, aggregated, republished, uploaded, posted, publicly displayed, encoded, translated, transmitted, distributed, sold, licensed, or otherwise exploited for any purpose whatsoever without our express prior written permission.
We reserve all rights not expressly granted to you in and to the Services, Content, and Marks.
By using the Services, you represent and warrant that:
If you provide any information that is untrue, inaccurate, not current, or incomplete, we have the right to suspend or terminate your account and refuse any and all current or future use of the Services.
You may be required to register to use certain features of the Services. Account creation is available through Google sign-in only. You agree to keep your login credentials confidential and will be responsible for all use of your account and any actions taken through your account.
Children's Accounts. Children under the age of 13 cannot create accounts. Only a parent or legal guardian may create an account and link a child's progress to that account. By creating an account and associating a child's usage with it, the parent or legal guardian represents that they have the legal authority to act on behalf of that child and consents to the collection and use of information as described in our Privacy Policy.
We reserve the right to remove, reclaim, or change a username you select if we determine, in our sole discretion, that such username is inappropriate, obscene, or otherwise objectionable.
You may not access or use the Services for any purpose other than that for which we make the Services available. The Services may not be used in connection with any commercial endeavors.
As a user of the Services, you agree not to:
We reserve the right, but not the obligation, to:
We care about data privacy and security. Please review our Privacy Policy. By using the Services, you agree to be bound by our Privacy Policy, which is incorporated into these Terms.
The Services are hosted in the United States. If you access the Services from outside the United States, please be aware that your information may be transferred to, stored, and processed by us in the United States, where our facilities and third-party service providers are located. If you are a resident of the European Economic Area, please note that we process your information in accordance with our Privacy Policy.
These Terms shall remain in full force and effect while you use the Services. Without limiting any other provision of these Terms, we reserve the right to, in our sole discretion and without notice or liability, deny access to and use of the Services (including blocking certain IP addresses) to any person for any reason or for no reason, including, without limitation, for breach of any representation, warranty, or covenant contained in these Terms or of any applicable law or regulation.
We may terminate your use or participation in the Services, or delete your account and any content or information that you posted at any time, without warning, in our sole discretion.
If we terminate or suspend your account for any reason, you are prohibited from registering and creating a new account under your name, a fake or borrowed name, or the name of any third party, even if you may be acting on behalf of the third party. In addition to terminating or suspending your account, we reserve the right to take appropriate legal action, including, without limitation, pursuing civil, criminal, and injunctive redress.
We reserve the right to change, modify, or remove the contents of the Services at any time or for any reason at our sole discretion without notice. We also reserve the right to modify or discontinue all or part of the Services without notice at any time. We will not be liable to you or any third party for any modification, suspension, or discontinuance of the Services.
We cannot guarantee the Services will be available at all times. We may experience hardware, software, or other problems or need to perform maintenance related to the Services, resulting in interruptions, delays, or errors. We reserve the right to change, revise, update, suspend, discontinue, or otherwise modify the Services at any time or for any reason without notice to you. You agree that we have no liability whatsoever for any loss, damage, or inconvenience caused by your inability to access or use the Services during any downtime or discontinuance of the Services.
Nothing in these Terms will be construed to obligate us to maintain and support the Services or to supply any corrections, updates, or releases in connection therewith.
These Terms shall be governed by and defined following the laws of the Commonwealth of Virginia. Dara Lee Luca, doing business as Numbercade, and you irrevocably consent that the courts of the Commonwealth of Virginia shall have exclusive jurisdiction to resolve any dispute which may arise in connection with these Terms.
Informal Negotiations. To expedite resolution and control the cost of any dispute, controversy, or claim related to these Terms (each a "Dispute" and collectively, "Disputes"), brought by either you or us (individually, a "Party" and collectively, the "Parties"), the Parties agree to first attempt to negotiate any Dispute informally for at least thirty (30) days before initiating arbitration or court proceedings. Such informal negotiations commence upon written notice from one Party to the other Party.
Binding Jurisdiction. If the Parties are unable to resolve a Dispute through informal negotiations, the Dispute shall be brought exclusively before the state and federal courts located in Fairfax County, Virginia. The Parties hereby consent to, and waive all defenses of lack of, personal jurisdiction and forum non conveniens with respect to venue and jurisdiction in such state and federal courts.
Restrictions. The Parties agree that any Dispute resolution proceedings will be conducted only on an individual basis and not in a class, consolidated, or representative action. If for any reason a claim proceeds in court rather than in arbitration, each Party waives any right to a jury trial.
There may be information on the Services that contains typographical errors, inaccuracies, or omissions, including descriptions, availability, and various other information. We reserve the right to correct any errors, inaccuracies, or omissions and to change or update the information on the Services at any time, without prior notice.
THE SERVICES ARE PROVIDED ON AN "AS-IS" AND "AS-AVAILABLE" BASIS. YOU AGREE THAT YOUR USE OF THE SERVICES WILL BE AT YOUR SOLE RISK. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, IN CONNECTION WITH THE SERVICES AND YOUR USE THEREOF, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE MAKE NO WARRANTIES OR REPRESENTATIONS ABOUT THE ACCURACY OR COMPLETENESS OF THE SERVICES' CONTENT OR THE CONTENT OF ANY WEBSITES LINKED TO THE SERVICES, AND WE WILL ASSUME NO LIABILITY OR RESPONSIBILITY FOR ANY (1) ERRORS, MISTAKES, OR INACCURACIES OF CONTENT AND MATERIALS, (2) PERSONAL INJURY OR PROPERTY DAMAGE, OF ANY NATURE WHATSOEVER, RESULTING FROM YOUR ACCESS TO AND USE OF THE SERVICES, (3) ANY UNAUTHORIZED ACCESS TO OR USE OF OUR SECURE SERVERS AND/OR ANY AND ALL PERSONAL INFORMATION STORED THEREIN, (4) ANY INTERRUPTION OR CESSATION OF TRANSMISSION TO OR FROM THE SERVICES, (5) ANY BUGS, VIRUSES, TROJAN HORSES, OR THE LIKE WHICH MAY BE TRANSMITTED TO OR THROUGH THE SERVICES BY ANY THIRD PARTY, AND/OR (6) ANY ERRORS OR OMISSIONS IN ANY CONTENT AND MATERIALS OR FOR ANY LOSS OR DAMAGE OF ANY KIND INCURRED AS A RESULT OF THE USE OF ANY CONTENT POSTED, TRANSMITTED, OR OTHERWISE MADE AVAILABLE VIA THE SERVICES.
THE SERVICES ARE INTENDED FOR EDUCATIONAL AND ENTERTAINMENT PURPOSES. WE DO NOT GUARANTEE ANY SPECIFIC EDUCATIONAL OUTCOMES FROM USE OF THE SERVICES. THE CONTENT SHOULD NOT BE CONSIDERED A SUBSTITUTE FOR FORMAL INSTRUCTION OR PROFESSIONAL TUTORING.
IN NO EVENT WILL WE OR OUR DIRECTORS, EMPLOYEES, OR AGENTS BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, EXEMPLARY, INCIDENTAL, SPECIAL, OR PUNITIVE DAMAGES, INCLUDING LOST PROFIT, LOST REVENUE, LOSS OF DATA, OR OTHER DAMAGES ARISING FROM YOUR USE OF THE SERVICES, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
NOTWITHSTANDING ANYTHING TO THE CONTRARY CONTAINED HEREIN, OUR LIABILITY TO YOU FOR ANY CAUSE WHATSOEVER AND REGARDLESS OF THE FORM OF THE ACTION WILL AT ALL TIMES BE LIMITED TO THE AMOUNT PAID, IF ANY, BY YOU TO US DURING THE SIX (6) MONTH PERIOD PRIOR TO ANY CAUSE OF ACTION ARISING. BECAUSE THE SERVICES ARE PROVIDED FREE OF CHARGE, THIS AMOUNT WILL BE ZERO DOLLARS ($0.00).
CERTAIN U.S. STATE LAWS AND INTERNATIONAL LAWS DO NOT ALLOW LIMITATIONS ON IMPLIED WARRANTIES OR THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES. IF THESE LAWS APPLY TO YOU, SOME OR ALL OF THE ABOVE DISCLAIMERS OR LIMITATIONS MAY NOT APPLY TO YOU, AND YOU MAY HAVE ADDITIONAL RIGHTS.
You agree to defend, indemnify, and hold us harmless, including our subsidiaries, affiliates, and all of our respective officers, agents, partners, and employees, from and against any loss, damage, liability, claim, or demand, including reasonable attorneys' fees and expenses, made by any third party due to or arising out of: (1) your use of the Services; (2) breach of these Terms; (3) any breach of your representations and warranties set forth in these Terms; or (4) your violation of the rights of a third party, including but not limited to intellectual property rights. Notwithstanding the foregoing, we reserve the right, at your expense, to assume the exclusive defense and control of any matter for which you are required to indemnify us, and you agree to cooperate, at your expense, with our defense of such claims. We will use reasonable efforts to notify you of any such claim, action, or proceeding which is subject to this indemnification upon becoming aware of it.
We will maintain certain data that you transmit to the Services for the purpose of managing the performance of the Services, as well as data relating to your use of the Services. Although we perform regular routine backups of data, you are solely responsible for all data that you transmit or that relates to any activity you have undertaken using the Services. You agree that we shall have no liability to you for any loss or corruption of any such data, and you hereby waive any right of action against us arising from any such loss or corruption of such data.
Visiting the Services, creating an account, and sending us communications through the website constitute electronic communications. You consent to receive electronic communications, and you agree that all agreements, notices, disclosures, and other communications we provide to you electronically, via email or on the Services, satisfy any legal requirement that such communication be in writing. YOU HEREBY AGREE TO THE USE OF ELECTRONIC SIGNATURES, CONTRACTS, ORDERS, AND OTHER RECORDS, AND TO ELECTRONIC DELIVERY OF NOTICES, POLICIES, AND RECORDS OF TRANSACTIONS INITIATED OR COMPLETED BY US OR VIA THE SERVICES.
These Terms and any policies or operating rules posted by us on the Services constitute the entire agreement and understanding between you and us. Our failure to exercise or enforce any right or provision of these Terms shall not operate as a waiver of such right or provision.
These Terms operate to the fullest extent permissible by law. We may assign any or all of our rights and obligations to others at any time. We shall not be responsible or liable for any loss, damage, delay, or failure to act caused by any cause beyond our reasonable control.
If any provision or part of a provision of these Terms is determined to be unlawful, void, or unenforceable, that provision or part of the provision is deemed severable from these Terms and does not affect the validity and enforceability of any remaining provisions.
There is no joint venture, partnership, employment, or agency relationship created between you and us as a result of these Terms or use of the Services. You agree that these Terms will not be construed against us by virtue of having drafted them.
You hereby waive any and all defenses you may have based on the electronic form of these Terms and the lack of signing by the Parties hereto to execute these Terms.
In order to resolve a complaint regarding the Services or to receive further information regarding use of the Services, please contact us at:
Dara Lee Luca, doing business as Numbercade
6530 Heather Brook Ct
McLean, VA 22101
United States
Phone: (+1) 646-831-5196
Email: info@numbercade.com