These Terms and Conditions set forth the terms and conditions for providing the Services (as defined below), and the rights and obligations between the Provider and Users of the Services. Please read them before using the Services.

Article 1 Applicability

1. The purpose of these Terms and Conditions is to set forth the terms and conditions for providing the Services and the rights and obligations between the Provider and the Users (as defined below), and these Terms and Conditions shall apply to all aspects of the relationship between you and the Provider in connection with the Services.
2. If there is any conflict between these Terms and Conditions and the Rules or any other description of the Services not provided for herein, these Terms and Conditions will prevail.
3. You agree to be bound by the Service Agreement when you start using the Services. If you do not understand or accept the contents of the Service Agreement, please do not use the Services.

Article 2 Definitions

For purposes of these Terms and Conditions, the following terms have the following meanings.
(1) “Service Agreement” means not only these Terms and Conditions but also any other agreements relating to the Services to be executed between the Provider and the User.
(2) “IP Rights” means copyrights, patents, trade marks, utility rights, design rights and other intellectual property rights (including rights to obtain or to apply for registration of such rights).
(3) “Posted Data” means any content that the User enters into, stores in or transmits through the Services, including but not limited to text, drawings, images, audio and other data.
(4) “the Provider” means the provider of Service, Naoya Enokida.
(5) “User” means any person or entity that uses the Services. An account is not required to use the Services.
(6) “Services” means any and all services provided by the Provider under the name “ThinkSpace” (or if such name or the content of such services has been modified for any reasons, such modified services).

Article 3 Password and User ID Management

1. The User may be required to provide information about yourself for the purpose of registering and/or using certain services. You agree that the information is accurate.
2. The User shall be responsible for keeping and maintaining its password and user ID for the Services in an appropriate manner, and may not cause a third party to use, or provide, transfer, change the name of, sell or otherwise dispose of, the same.
3. The User shall be, and the Provider shall in no event be, liable for damages arising out of inappropriate management, misuse, or use of the User’s password or user ID by a third party.

Article 4 Persons Who Can Use the Services

The User can use the Services only if the User agrees to conclude the Service Agreement with the Provider and none of the following applies.
(1) The User is a minor, an adult ward, a person under curatorship or a person under assistance, and does not have the consent of a legal representative, guardian, curator or assistant.
(2) The User is a member of, or is affiliated with or provides support to, an organized crime group or similar organization (as these concepts are used under Japanese law), or the Provider determines that the User has any involvement with such a group.
(3) The User, or a person related to the User, has violated an agreement with the Provider in the past.

Article 5 Prohibited Actions

When using the Services, the User may not do any of the following. These rules are about how the Services are used (for example, unlawful use, attacks on the Services, or abuse of the AI Features). They are not rules about what you may write in your own notes.
(1) using the Services for any act that violates applicable laws or regulations, or that is connected with criminal activity;
(2) defrauding or threatening the Provider, other Users or other third parties through the Services;
(3) using the Services in a manner that is contrary to public order or generally accepted standards of decency;
(4) sharing a single account among more than one person;
(5) infringing the IP Rights, portrait rights, privacy rights, reputation or other rights or interests of the Provider, other Users or other third parties through the Services;
(6) transmitting through the Services computer viruses or other harmful programs;
(7) placing an excessive burden on the network or systems of the Services;
(8) interfering with, or threatening to interfere with, the operation of the Services;
(9) accessing, or attempting to access, the systems or network of the Services without authorization;
(10) reproducing the functions, designs or graphics of the Services for the purpose of building a competing product or service;
(11) impersonating a third party;
(12) using the user ID or password of another User;
(13) advertising, soliciting or marketing through the Services without the Provider’s prior consent;
(14) collecting personal information of other Users through the Services;
(15) using the Services to provide benefits to organized crime groups or similar organizations;
(16) directly or indirectly causing or facilitating any of the acts listed above; or
(17) other acts that the Provider reasonably determines to be inappropriate in light of the purpose of the Services.

Article 6 Ownership of Rights

1. Any and all IP Rights related to the Website and the Services are expressly reserved by the Provider or the Provider’s licensor. Nothing contained herein shall be construed as granting to the User a license of the IP Rights owned by the Provider or the Provider’s licensor.
2. The User hereby represents and warrants to the Provider that it has lawful rights to enter or otherwise transmit the Posted Data, and that the Posted Data does not infringe any third party’s rights.
3. We do not own your data. Putting notes and other content into our service does not change that content's ownership or copyright status. If the data was yours to begin with, it remains yours after you put it in our service. Of course, if the data wasn’t yours to begin with, putting it in our service doesn’t make it yours. By using our products, you give the Provider permission to do only what is needed to run the service for you (for example, to store and sync your notes, or to send your Input to the AI provider when you use an AI Feature). The Provider does not use your content for any other purpose.
4. (Deleted on September/14/2026. The sharing feature is no longer offered.)
5. The User agrees not to exercise moral rights against the Provider or any other person who succeeded to the same from the Provider.

Article 7 (Deleted)

[Deleted on September/14/2026. The invitation code and sharing features are no longer offered.]

Article 8 Prohibition of High-risk Use

This service is not intended for use in hazardous environments that require fail-safe management, including but not limited to operating nuclear facilities, aircraft navigation/communication systems, air traffic control, life support systems, and weapons systems. It is not designed or approved. This service is prohibited for use in or in a high risk environment.

Article 8-2 Use of AI Features

1. The Services include features that generate cards, text, and other materials (“Output”) by artificial intelligence based on content entered by the User (“Input”) (such features, the “AI Features”).
2. The Provider uses technology provided by OpenAI, LLC to provide the AI Features. Input is sent to OpenAI, LLC to the extent necessary to generate Output. The Provider does not use Input or Output to train AI models, nor does it permit any third party to do so.
3. The User warrants that its Input and use of the AI Features do not violate applicable laws and regulations, and shall be solely responsible for the use of Input and Output.
4. In using the AI Features, the User shall not:
(1) represent that Output was generated solely by a human;
(2) use the AI Features for spam, generating content to be spread in election campaigns, or other inappropriate purposes;
(3) use the AI Features to develop AI models that compete with them; or
(4) violate the usage policies established by OpenAI, LLC.
5. Due to the nature of artificial intelligence, the accuracy and completeness of Output are not guaranteed, and the same or similar Output may be generated for other Users. The User shall review Output at its own responsibility before use.
6. The Provider may modify the content of the AI Features, suspend or terminate their provision, or set or change usage limits or other conditions of use. Additional fees may be required in the future for use of all or part of the AI Features.
7. The Provider's liability in connection with the AI Features shall be governed by Article 14 (Disclaimer and Waiver of Warranties).

Article 9 Suspension of the Services

1. The Provider shall be entitled to, without any advance notice to the User, suspend or discontinue the Services, in whole or in part, in the event that:
i Inspection or maintenance of the computer system for the Services needs to be performed due to urgent circumstances;
ii Computers or communication lines have been disrupted due to an accident;
iii The Provider becomes unable to provide the Services due to force majeure, including but not limited to earthquake, lightning, fire, storm and flood damage, power blackout and other natural disasters; or
iv The Provider determines that suspension or discontinuance is required for other reasons.
2. Under no circumstances shall the Provider be liable for any damages incurred by the User arising out of any measures taken by the Provider pursuant to this Article 9.

Article 10 Registration Cancellation

1. The Provider may, without prior notice or demand, temporarily suspend the use by the User of the Services, cancel the User’s registration as such or terminate the Service Agreement, in the event of any of the following:
i The User failed to comply with any of provisions hereof;
ii Any of the Registration Information is found to be false;
iii The User underwent payment suspension or became insolvent, or a petition for bankruptcy, civil rehabilitation, corporate reorganization, special liquidation or other similar procedure was filed against the User;
iv The User has not responded to inquiries from the Provider or other communications requiring its response for 30 days or more;
v The User falls under any of the subparagraphs of Article 4; or
vi In addition to the foregoing, if the Provider reasonably determined that it is inappropriate for the User to use the Services, maintain its registration as a User, or have the Service Agreement remain in effect.
(Note: the Provider does not delete a User’s notes as a penalty. Content stored on the User’s device stays on the device; treatment of information stored on the Provider’s servers after termination is governed by Article 16.)
2. If one or more of events specified above occurred, all amounts owed to the Provider by the User shall be automatically accelerated, and the User shall immediately pay to the Provider such amounts in full.
3. The Provider shall not be liable for any damages incurred by the User arising out of, or in connection with, any actions taken by the Provider pursuant to this Article 10.

Article 11 Cancellation of Subscription

If you have a subscription to the Pro version, you can cancel your subscription to the Pro version at any time. You can cancel your subscription from the "App Store" application that is installed as standard on the device OS.

Article 12 Withdrawal

1. The User may withdraw from the Services and cancel its registration as a User by giving notice to the Provider to that effect and pursuant to such manner as specified by the Provider.
2. Upon withdrawal, all amounts then due and payable from the User, if any, shall be automatically accelerated, and the User shall immediately pay to the Provider such amounts in full.
3. Treatment of user information after the withdrawal shall be subject to the provisions of Article 16.

Article 13 Services Modification and Termination

1. The Provider shall be entitled to at any time modify or terminate the Services in its own discretion. The Provider shall notify in advance the User of any intended termination by the Provider of the Services.
2. The Provider shall not be liable for any damages incurred by the User arising out of, or in connection with, any actions taken by the Provider pursuant to this Article 13.

Article 14 Disclaimer and Waiver of Warranties

1. THE PROVIDER MAKES NO REPRESENTATION OR WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH RESPECT TO THE SERVICES (including but not limited to any representation or warranty (i) of fitness or suitability for a particular purpose contemplated by the User, (ii) that the Services have expected functions, commercial value, accuracy, or usefulness (iii)that the use by the User of the Services complies with the laws and regulations applicable to the User or any internal rules established by industrial organizations, and (iv) that the Services will be free of interruption or defects).
2. Under no circumstances shall the Provider be liable for any damages incurred by the User arising out of discontinuance, suspension, termination, unavailability, or modification by the Provider of the Services, cancellation or loss of messages or information transmitted by the User to the Services, deletion of the registration of the User, loss of registered data or failure of or damage to equipment through the use of the Services, or otherwise in connection with the Services (“Damages”).
3. The Provider shall not be liable for any amount exceeding the consideration paid by the User to the Provider for the immediately previous 12 months in relation to Damages incurred by the User that are attributable to the Provider for any reasons whatsoever. UNDER NO CIRCUMSTANCES SHALL THE PROVIDER BE LIABLE FOR INCIDENTAL, INDIRECT, SPECIAL, FUTURE DAMAGES AND LOST PROFITS.
4. The Provider shall not in any way be liable for transactions, communications or disputes arising between the User and other Users or a third party in connection with the Services or the Website.

Article 15 Confidentiality

The User shall keep confidential any and all non-public information disclosed by the Provider to the User for which the Provider has imposed on the User a confidentiality obligation in connection with the Services, unless the User has obtained prior written approval from the Provider.

Article 16 Treatment of User Information

1. Treatment by the Provider of the User’s information shall be subject to the provisions of our Privacy Policy (URL: https://thinkspace-public.s3.ap-northeast-1.amazonaws.com/privacy-policy-en-v2.html), which are separately prescribed, and the User hereby agrees to treatment by the Provider of the User’s information subject to such Privacy Policy.

Article 17 Amendments

1. The Provider may amend these Terms and Conditions when it determines that an amendment is necessary.
2. If an amendment would have a significant impact on Users, the Provider will give advance notice a reasonable period before it takes effect (for example, by posting a notice in the Services or on the Provider's support site). Such an amendment takes effect 14 days after the amended Terms and Conditions are posted, and is not applied retroactively. Amendments required by law, and amendments that only accommodate new features of the Services, take effect when posted.
3. If you continue to use the Services after an amendment takes effect, you are deemed to have accepted the amended Terms and Conditions. If you do not accept an amendment, please stop using the Services.
4. Please check these Terms and Conditions from time to time.

Article 18 Assignment

1. The User shall not assign, transfer, grant security interests in or otherwise dispose of its status under the Service Agreement or its rights or obligations under these Terms and Conditions without the prior written consent of the Provider.
2. In cases where the Provider has assigned the business regarding the Services to a third party, the Provider may, as part of such assignment, assign to such third party its status under the Service Agreement, its rights and obligations under these Terms and Conditions, and the Registration Information and other information relating to the User, and the User hereby agrees to such assignment in advance. For the purposes of this Article 18.2, the business assignment referred to above shall include, in addition to the usual form of business assignment, a split of the Provider or any other form of restructuring of the Provider that would result in a business transfer.

Article 19 Severability

If any provision of these Terms and Conditions or part thereof is held to be invalid or unenforceable under the Consumer Contract Law of Japan or other laws or regulations, the remaining provisions hereof shall remain in full force and effect.

Article 20 Dominance of the Japanese version

Versions of these Terms and Conditions in languages other than Japanese are provided for the convenience of Users. The Japanese version governs the relationship between the Provider and Users, and if there is any discrepancy between the Japanese version and a version in another language, the Japanese version prevails.

Article 21 Governing Law and Jurisdiction

1. These Terms and Conditions shall be governed by the laws of Japan. If there are sales of goods in the Services, the United Nations Convention on Contracts for the International Sales of Goods (CISG) shall not apply.
2. Any and all disputes arising out of or in connection with these Terms and Conditions shall be submitted to the exclusive jurisdiction of the Tokyo District Court in the first instance.
These Terms and Conditions shall be executed in the Japanese language. Japanese shall be the governing language and any translation of these Terms and Conditions into any other language is for convenience of reference only and shall not bind the parties hereto.

[Prescribed on June/5/2020]
[Revised on August/1/2026]
[Revised on September/14/2026]