These terms and conditions (“Agreement”) set forth the general terms and conditions of your use of the “Duet” mobile application (“Mobile Application” or “Service”) and any of its related products and services (collectively, “Services”). This Agreement is legally binding between you (“User”, “you” or “your”) and this Mobile Application developer (“Operator”, “we”, “us” or “our”). If you are entering into this Agreement on behalf of a business or other legal entity, you represent that you have the authority to bind such entity to this Agreement, in which case the terms “User”, “you” or “your” shall refer to such entity. If you do not have such authority, or if you do not agree with the terms of this Agreement, you must not accept this Agreement and may not access and use the Mobile Application and Services. By accessing and using the Mobile Application and Services, you acknowledge that you have read, understood, and agree to be bound by the terms of this Agreement. You acknowledge that this Agreement is a contract between you and the Operator, even though it is electronic and is not physically signed by you, and it governs your use of the Mobile Application and Services.
Accounts and membership
You must be at least 16 years of age to use the Mobile Application and Services. By using the Mobile Application and Services and by agreeing to this Agreement you warrant and represent that you are at least 18 years of age. If you create an account in the Mobile Application, you are responsible for maintaining the security of your account and you are fully responsible for all activities that occur under the account and any other actions taken in connection with it. We may monitor and review new accounts before you may sign in and start using the Services. Providing false contact information of any kind may result in the termination of your account. You must immediately notify us of any unauthorized uses of your account or any other breaches of security. We will not be liable for any acts or omissions by you, including any damages of any kind incurred as a result of such acts or omissions. We may suspend, disable, or delete your account (or any part thereof) if we determine that you have violated any provision of this Agreement or that your conduct or content would tend to damage our reputation and goodwill. If we delete your account for the foregoing reasons, you may not re-register for our Services. We may block your email address and Internet protocol address to prevent further registration.
Subscription Terms
By purchasing a subscription in the Duet mobile application ("App"), you agree to the terms described in this section, in addition to the rest of our Terms and Conditions and Privacy Policy.
1. General 1.1 Subscription Name: Duet Plus 1.2 Subscription Content: Removal of ads, shared membership benefits for two users, and access to future Duet Plus–exclusive features. 1.3 Subscription Period: Available in monthly (1 month), quarterly (3 months), and annual (12 months) plans.
Subscriptions provide access to the features and content described above as long as your subscription is active.
2. Billing & Payment Payment will be charged to your Apple ID account (for iOS users) or Google Play account (for Android users) at the time of purchase confirmation. The subscription will automatically renew at the end of each billing period unless auto-renew is turned off at least 24 hours before the end of the current period.
3. Renewal Your account will be charged for renewal within 24 hours before the end of the current period, at the rate shown in the App at the time of renewal. Subscription prices may change, and if they do, you will be notified in advance as required by Apple or Google policies.
4. Managing Subscriptions You can manage and cancel your subscription at any time:
iOS: Open your device Settings → Tap your name → Subscriptions → Select Duet → Cancel Subscription.
Android: Open the Google Play Store → Tap Menu → Subscriptions → Select Duet → Cancel Subscription.
Deleting the App will not cancel your subscription.
5. Refunds Refund requests must be made through Apple (for iOS purchases) or Google Play (for Android purchases), as we do not process refunds directly for subscriptions purchased via the App Stores. Refund eligibility will follow the applicable store's refund policy.
6. Changes to Subscription Terms We reserve the right to modify the subscription terms, features, and pricing. Any changes will be communicated as required by the App Store or Google Play policies, and will take effect at the start of the next billing cycle or as otherwise stated.
User content
We do not own any data, information or material (collectively, "Content") that you submit in the Mobile Application in the course of using the Service. You shall have sole responsibility for the accuracy, quality, integrity, legality, reliability, appropriateness, and intellectual property ownership or right to use of all submitted Content. You represent and warrant that you own or have the necessary rights, licenses, consents, and permissions to submit all Content, including but not limited to the right to use the likeness, image, or personal data of any individual depicted in the Content (such as photographs of your partner or other persons). You are solely responsible for obtaining any required consents from individuals whose likeness or personal information appears in Content you upload. We may monitor and review the Content in the Mobile Application submitted or created using our Services by you. You grant us permission to access, copy, distribute, store, transmit, reformat, display and perform the Content of your user account solely as required for the purpose of providing the Services to you. Without limiting any of those representations or warranties, we have the right, though not the obligation, to, in our own sole discretion, refuse or remove any Content that, in our reasonable opinion, violates any of our policies or is in any way harmful or objectionable. You also grant us the license to use, reproduce, adapt, modify, publish or distribute the Content created by you or stored in your user account for commercial, marketing or any similar purpose.
We reserve the right, at any time and without prior notice, to remove, disable, or restrict access to any Content that we determine, in our sole discretion, violates this Agreement, applicable law, or is otherwise harmful, objectionable, or poses a risk to the safety of any person. We further reserve the right to suspend, disable, or permanently terminate your account for any such violation. These actions may be taken without prior notice and without liability to you.
Prohibited content
You agree not to upload, post, share, or otherwise transmit any Content through the Mobile Application and Services that:
(a) Constitutes, depicts, promotes, or facilitates child sexual abuse material (CSAM) or the sexual exploitation of minors in any form;
(b) Constitutes non-consensual intimate imagery, including but not limited to sexually explicit or intimate images or videos of any person shared without that person's explicit consent (commonly referred to as "revenge porn");
(c) Depicts, promotes, or glorifies graphic violence, physical harm, torture, or acts of cruelty against humans or animals;
(d) Infringes upon the intellectual property rights of any third party, including copyrights, trademarks, patents, trade secrets, or other proprietary rights;
(e) Contains hateful, discriminatory, or threatening content directed at any individual or group based on race, ethnicity, national origin, religion, gender, gender identity, sexual orientation, disability, or any other protected characteristic;
(f) Promotes, encourages, or provides instructions for self-harm, suicide, or eating disorders;
(g) Contains fraudulent, deceptive, or misleading content, including impersonation of any person or entity;
(h) Contains malware, viruses, or any other malicious code designed to disrupt, damage, or gain unauthorized access to any system or data;
(i) Violates the privacy rights of any third party, including the unauthorized collection, disclosure, or use of personal information;
(j) Constitutes spam, unsolicited commercial messages, or bulk automated communications.
We take violations of this section seriously. Upon becoming aware of any prohibited content, whether through our own monitoring, automated detection systems, or user reports, we may take immediate action, including but not limited to removing the content, suspending or terminating the offending account, and reporting the matter to the appropriate law enforcement authorities where required or appropriate.
Content reporting
If you become aware of any Content on the Mobile Application that you believe violates this Agreement, applicable laws, or is otherwise harmful or objectionable, you may report it to us by contacting us at duet.dev.team [at] gmail.com. Please include the email address associated with your Duet account, a detailed description of the content in question, and, where possible, a screenshot or other identifying information to help us locate and review it. We are committed to reviewing all reports promptly and will take appropriate action in accordance with this Agreement and applicable law. While we cannot guarantee a specific response time, we will make commercially reasonable efforts to address reported content in a timely manner. You will not be penalized or retaliated against for making a good-faith report of prohibited content.
Backups
We are not responsible for the Content residing in the Mobile Application. In no event shall we be held liable for any loss of any Content. It is your sole responsibility to maintain appropriate backup of your Content. Notwithstanding the foregoing, on some occasions and in certain circumstances, with absolutely no obligation, we may be able to restore some or all of your data that has been deleted as of a certain date and time when we may have backed up data for our own purposes. We make no guarantee that the data you need will be available.
Disclaimers, warranties, and limitations of liability
You acknowledge and agree that the content on the platform is provided on an "as is" and "as available" basis. You use or rely on the platform and any content, goods, products or services accessed or obtained through the platform at your own risk. Even though we will make reasonable efforts to ensure that the platform services are always available, we do not warrant or represent that the services will always be secure, timely, uninterrupted, error-free, free of technical difficulties, defect-free, or free of system failures. Please be aware that the platform may be temporarily interrupted due to scheduled or routine maintenance, or due to outages caused by network, electronic communications interruptions, or other force majeure events.
We are not liable for any delays, failures, errors, omissions, or loss of transmitted data, forwarded viruses or other contamination, or destruction of property that may arise from our website. We are not responsible for any delays, negligence, or delays caused by force majeure factors.
We have taken reasonable measures to prevent online fraud and ensure the security of your personal information. However, we are not responsible for major events (such as damage or destruction of computer servers, third-party breaches).
Once any abuse of discount codes or other suspicious fraudulent activity occurs, Duet reserves the right to immediately stop and refuse to provide any further services to the store (or consumer). In addition, Duet also reserves the right to seek compensation from violators or abusers.
Duet has the right to withdraw or terminate any activity offer at any time without notice.
The platform is not responsible for any Content uploaded, posted, or shared by users of the Mobile Application and Services. We do not endorse, verify, or assume any liability for user-generated Content. You acknowledge and agree that we shall not be held liable for any damages, losses, claims, or liabilities arising from or related to Content created, uploaded, or shared by other users, including but not limited to defamatory, offensive, infringing, or otherwise harmful Content. Your use of or reliance on any user-generated Content is entirely at your own risk.
Links to other resources
Although the Mobile Application and Services may link to other resources (such as websites, mobile applications, etc.), we are not, directly or indirectly, implying any approval, association, sponsorship, endorsement, or affiliation with any linked resource, unless specifically stated herein. We are not responsible for examining or evaluating, and we do not warrant the offerings of, any businesses or individuals or the content of their resources. We do not assume any responsibility or liability for the actions, products, services, and content of any other third parties. You should carefully review the legal statements and other conditions of use of any resource which you access through a link in the Mobile Application. Your linking to any other off-site resources is at your own risk.
Prohibited uses
In addition to other terms as set forth in the Agreement, you are prohibited from using the Mobile Application and Services or Content: (a) for any unlawful purpose; (b) to solicit others to perform or participate in any unlawful acts; (c) to violate any international, federal, provincial or state regulations, rules, laws, or local ordinances; (d) to infringe upon or violate our intellectual property rights or the intellectual property rights of others; (e) to harass, abuse, insult, harm, defame, slander, disparage, intimidate, or discriminate based on gender, sexual orientation, religion, ethnicity, race, age, national origin, or disability; (f) to submit false or misleading information; (g) to upload or transmit viruses or any other type of malicious code that will or may be used in any way that will affect the functionality or operation of the Mobile Application and Services, third party products and services, or the Internet; (h) to spam, phish, pharm, pretext, spider, crawl, or scrape; (i) for any obscene or immoral purpose; or (j) to interfere with or circumvent the security features of the Mobile Application and Services, third party products and services, or the Internet. We reserve the right to terminate your use of the Mobile Application and Services for violating any of the prohibited uses.
Intellectual property rights
“Intellectual Property Rights” means all present and future rights conferred by statute, common law or equity in or in relation to any copyright and related rights, trademarks, designs, patents, inventions, goodwill and the right to sue for passing off, rights to inventions, rights to use, and all other intellectual property rights, in each case whether registered or unregistered and including all applications and rights to apply for and be granted, rights to claim priority from, such rights and all similar or equivalent rights or forms of protection and any other results of intellectual activity which subsist or will subsist now or in the future in any part of the world. This Agreement does not transfer to you any intellectual property owned by the Operator or third parties, and all rights, titles, and interests in and to such property will remain (as between the parties) solely with the Operator. All trademarks, service marks, graphics and logos used in connection with the Mobile Application and Services, are trademarks or registered trademarks of the Operator or its licensors. Other trademarks, service marks, graphics and logos used in connection with the Mobile Application and Services may be the trademarks of other third parties. Your use of the Mobile Application and Services grants you no right or license to reproduce or otherwise use any of the Operator or third party trademarks.
Indemnification
You agree to indemnify and hold the Operator and its affiliates, directors, officers, employees, agents, suppliers and licensors harmless from and against any liabilities, losses, damages or costs, including reasonable attorneys’ fees, incurred in connection with or arising from any third party allegations, claims, actions, disputes, or demands asserted against any of them as a result of or relating to your Content, your use of the Mobile Application and Services or any willful misconduct on your part.
Severability
All rights and restrictions contained in this Agreement may be exercised and shall be applicable and binding only to the extent that they do not violate any applicable laws and are intended to be limited to the extent necessary so that they will not render this Agreement illegal, invalid or unenforceable. If any provision or portion of any provision of this Agreement shall be held to be illegal, invalid or unenforceable by a court of competent jurisdiction, it is the intention of the parties that the remaining provisions or portions thereof shall constitute their agreement with respect to the subject matter hereof, and all such remaining provisions or portions thereof shall remain in full force and effect.
Dispute resolution
The formation, interpretation, and performance of this Agreement and any disputes arising out of it shall be governed by the substantive and procedural laws of Taiwan without regard to its rules on conflicts or choice of law and, to the extent applicable, the laws of Taiwan. The exclusive jurisdiction and venue for actions related to the subject matter hereof shall be the courts located in Taiwan, and you hereby submit to the personal jurisdiction of such courts. You hereby waive any right to a jury trial in any proceeding arising out of or related to this Agreement. The United Nations Convention on Contracts for the International Sale of Goods does not apply to this Agreement.
Changes and amendments
We reserve the right to modify this Agreement or its terms related to the Mobile Application and Services at any time at our discretion. When we do, we will revise the updated date at the bottom of this page. We may also provide notice to you in other ways at our discretion, such as through the contact information you have provided.
An updated version of this Agreement will be effective immediately upon the posting of the revised Agreement unless otherwise specified. Your continued use of the Mobile Application and Services after the effective date of the revised Agreement (or such other act specified at that time) will constitute your consent to those changes.
Acceptance of these terms
You acknowledge that you have read this Agreement and agree to all its terms and conditions. By accessing and using the Mobile Application and Services you agree to be bound by this Agreement. If you do not agree to abide by the terms of this Agreement, you are not authorized to access or use the Mobile Application and Services.
Contacting us
If you have any questions, concerns, or complaints regarding this Agreement, we encourage you to contact us using email: duet.dev.team [at] gmail.com
This document was last updated on February 20, 2026