Terms & Conditions

These terms and conditions apply to the Yukimoji app for mobile devices and web browsers, together with any related services operated by Ryokusoft GmbH (collectively, the "Application"). Ryokusoft GmbH is hereby referred to as the "Service Provider".

By downloading or using the Application, you agree to these Terms and Conditions. You should read them carefully before using the Application.

License to use the Application

Subject to your compliance with these Terms, the Service Provider grants you a limited, non-exclusive, non-transferable, revocable license to install and use the Application on a mobile device or computer for personal or internal business purposes. You may not reproduce, distribute, modify, create derivative works from, reverse engineer, decompile, or disassemble the Application, except as and only to the extent that such activity is expressly permitted by applicable law.

Intellectual Property

The Service Provider retains all intellectual property rights in the Application, including its code, design, trademarks, service marks, trade names, logos, and branding (the "IP"). Nothing in these Terms grants you any license or right to use the Service Provider's trademarks, logos, or branding for any purpose. You agree not to remove, alter, or obscure any copyright, trademark, or other proprietary notices displayed in or on the Application.

The Application also incorporates third-party materials made available under open-source and open-content licenses, including open-source software components, typefaces licensed under the SIL Open Font License 1.1, and Japanese-language reference data. These materials remain the property of their respective owners and are used by the Service Provider under license. They are identified, together with their licenses, on the Application's About / credits screen. Nothing in these Terms restricts any rights you may have in those materials under their respective licenses, and to the extent of any conflict between these Terms and such a license, that license governs the material it covers.

In particular, certain reference content — including vocabulary entries, readings, definitions, and parts of speech derived from JMdict/JMnedict, kanji data derived from KANJIDIC2, and per-word furigana derived from JmdictFurigana — is used under the Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0). Where the Service Provider has modified that content, those modifications are likewise made available under CC BY-SA 4.0. JLPT level data is used under the Creative Commons Attribution License (CC BY). Accordingly, the Service Provider's proprietary rights, and the restrictions on copying, modification, and creation of derivative works set out in these Terms, apply only to the Service Provider's own materials — including the Application's software, design, branding, and the Service Provider's original selection, arrangement, curation, and presentation of content — and do not override the rights granted to you under the licenses governing the materials described above.

Purchases, Subscriptions and Refunds

The Application offers a free tier and paid "Yukimoji Pro" plans (monthly subscription, yearly subscription, and a one-time lifetime purchase). Prices, billing periods, and the currency are shown before you confirm a purchase and include applicable VAT. One purchase unlocks the paid features on web, iOS, and Android for the same account. Reviews of items you have already learned remain available on the free tier.

Seller. Purchases made through the Apple App Store or Google Play are concluded with Apple or Google under their terms; they are billed, managed, renewed, cancelled, and refunded through your App Store or Google Play account. Purchases made on the website are sold by Ryokusoft GmbH, Klausen 4, 9911 Assling, Austria, with payment processing by RevenueCat Web Billing (Stripe). You will receive a receipt by email for website purchases.

Automatic renewal. Monthly and yearly subscriptions renew automatically for the same period at the price shown at the time of purchase until you cancel. For App Store and Google Play subscriptions, cancel at least 24 hours before the end of the current period in your device's subscription settings. For website subscriptions, you can cancel at any time from the Settings screen or by emailing admin@ryokusoft.com; cancellation takes effect at the end of the period already paid for, and you keep access until then. The Service Provider will inform you in advance by email of any price change to a renewing subscription, and you may cancel before the change takes effect.

Lifetime purchase. A lifetime purchase is a one-time payment that unlocks the paid features for as long as the Service Provider operates the Application. It is not a subscription and does not renew.

Right of withdrawal (EU and Austrian consumers). If you are a consumer in the European Union, you have the right to withdraw from a contract concluded on the website within 14 days without giving any reason (Sections 11 and 18 of the Austrian Fern- und Auswärtsgeschäfte-Gesetz, FAGG, and Directive 2011/83/EU). The withdrawal period ends 14 days after the day the contract was concluded. To exercise this right, send an unambiguous statement (for example an email to admin@ryokusoft.com) before the period expires; you may use the model withdrawal form below but are not obliged to. If you withdraw, the Service Provider will refund all payments received from you without undue delay and no later than 14 days after receiving your withdrawal, using the same means of payment you used. Yukimoji Pro is digital content that is not supplied on a tangible medium. If you ask the Service Provider to unlock Pro immediately, you expressly consent to performance beginning before the end of the withdrawal period and acknowledge that you thereby lose your right of withdrawal once access has been granted. The checkout asks for this consent before charging you.

Model withdrawal form. "To Ryokusoft GmbH, Klausen 4, 9911 Assling, Austria, admin@ryokusoft.com: I hereby give notice that I withdraw from my contract for the supply of the following digital content: Yukimoji Pro (monthly / yearly / lifetime). Ordered on [date]. Name of consumer. Address of consumer. Signature (only if this form is notified on paper). Date."

Refunds. Beyond the statutory right of withdrawal, subscription fees for a period that has already started are not refunded on cancellation. For App Store and Google Play purchases, refund requests are handled by Apple or Google under their policies. For website purchases, contact admin@ryokusoft.com; the Service Provider will consider refund requests in good faith, in particular where the Application was not accessible for a material part of a billing period. Your statutory warranty rights for digital content (Sections 922 ff. of the Austrian Civil Code, ABGB, and the Verbrauchergewährleistungsgesetz, VGG) are not affected by anything in this section.

Coupon codes. Coupon codes are redeemable on the website only, are personal to the account that redeems them, have no cash value, and cannot be combined with other offers. Codes obtained through fraud or resale may be revoked.

Account deletion and purchases. Deleting your account does not cancel an App Store or Google Play subscription; you must cancel it with Apple or Google, or a further renewal may be charged. Access granted by a lifetime purchase or an active subscription ends when the account is deleted and cannot be transferred to another account.

Termination

The Service Provider may suspend your access to the Application or services if you materially breach these Terms. The Service Provider will provide you with written notice of the breach and, where the breach is capable of cure, you will have 14 days from receipt of notice to remedy the breach. If you fail to cure the breach within that period, the Service Provider may terminate your access.

The Service Provider may suspend or terminate your access immediately without notice if you violate applicable law, infringe intellectual property rights, or engage in activity that could cause harm to other users or the Service Provider.

Upon termination, your right to use the Application will end and you must delete all copies from your devices.

By accessing and using this Application, you represent that you are legally permitted to use it in your jurisdiction. You must be at least 16 years of age (the age of digital consent in your jurisdiction) to use the Application. If you are below 16, a parent or legal guardian must review and accept these Terms on your behalf.

Except for the third-party and openly licensed materials identified under the Intellectual Property section above, unauthorized copying, modification of the Application, any part of the Application, or the Service Provider's trademarks is strictly prohibited. Any attempts to extract the source code of the Application, translate the Application into other languages, or create derivative versions are not permitted. All trademarks, copyrights, database rights, and other intellectual property rights in the Application that are not covered by such licenses remain the property of the Service Provider.

User-Generated Content and Acceptable Use

If this Application allows users to post, share, or upload content, you agree not to post content that:

• Is illegal or violates third-party intellectual property rights (copyright, trademark, patents)
• Is abusive, threatening, harassing, defamatory, or hate speech
• Contains discrimination or incitement to violence or illegal activity
• Is spam, phishing, or contains malware
• Violates the privacy or personal data rights of others
• Is misleading, false, or deceptive
• Contains explicit violence or sexual content (unless age-gated appropriately)

The Service Provider reserves the right to:

• Remove or disable access to content that violates these guidelines
• Suspend or terminate accounts of users who repeatedly violate these guidelines
• Cooperate with law enforcement if illegal content is reported
• Moderate, filter, or hide content that violates these Terms, applicable law, or the guidelines set out above

Content submitted through the Application may be visible to other users or to the public, depending on how the Application functions.

If you believe content violates these Terms, infringes your rights, or is unlawful, you may report it to the Service Provider at admin@ryokusoft.com. The report should include enough information for the Service Provider to identify the content, evaluate the complaint, and contact you if follow-up is required.

Where the Application provides such features, you may also report content, block other users, or mute notifications directly through the Application's interface. The Service Provider will review in-app reports with the same standards described in these Terms.

The Service Provider may review reported content, request additional information where necessary, remove or restrict access to content, and take action against the responsible account where appropriate. Users affected by moderation decisions may contact the Service Provider at admin@ryokusoft.com to request further review. The Service Provider will respond to appeals within a reasonable period and provide the reasons for any upheld moderation decision, subject to applicable law.

By submitting User-Generated Content you grant the Service Provider a non-exclusive, worldwide, royalty-free license to use, reproduce, distribute, prepare derivative works of, display and perform the content in connection with the Application and the Service Provider's business. This license does not grant the Service Provider the right to sell or sublicense your content to third parties independently of the Application. You represent and warrant that you own or control all rights in the content you post and that use of the content does not violate these Terms or applicable law.

Your content may include personal data. Processing of personal data related to User-Generated Content is governed by the Privacy Policy. Do not post personal data of others without their consent.

The Service Provider is dedicated to ensuring that the Application is as beneficial and efficient as possible. As such, they reserve the right to modify the Application or charge for their services at any time and for any reason. The Service Provider assures you that any charges for the Application or its services will be clearly communicated to you.

The Application stores and processes personal data that you have provided to the Service Provider in order to provide the Service. It is your responsibility to maintain the security of your phone and access to the Application. The Service Provider strongly advises against jailbreaking or rooting your phone, which involves removing software restrictions and limitations imposed by the official operating system of your device. Such actions could expose your phone to malware, viruses, malicious programs, compromise your phone's security features, and may result in the Application not functioning correctly or at all.

Please note that the Application utilizes third-party services that have their own Terms and Conditions. Below are the links to the Terms and Conditions of the third-party service providers used by the Application:

• Expo
• RevenueCat

Please be aware that the Service Provider does not assume responsibility for certain aspects. Some functions of the Application require an active internet connection, which can be Wi-Fi or provided by your mobile network provider. The Service Provider cannot be held responsible if the Application does not function at full capacity due to lack of access to Wi-Fi or if you have exhausted your data allowance.

If you are using the application outside of a Wi-Fi area, please be aware that your mobile network provider's agreement terms still apply. Consequently, you may incur charges from your mobile provider for data usage during the connection to the application, or other third-party charges. By using the application, you accept responsibility for any such charges, including roaming data charges if you use the application outside of your home territory (i.e., region or country) without disabling data roaming. If you are not the bill payer for the device on which you are using the application, they assume that you have obtained permission from the bill payer.

Similarly, the Service Provider cannot always assume responsibility for your usage of the application. For instance, it is your responsibility to ensure that your device remains charged. If your device runs out of battery and you are unable to access the Service, the Service Provider cannot be held responsible.

Nothing in these Terms shall limit any rights you have under applicable consumer protection laws that cannot be lawfully excluded.

Limitation of Liability

To the fullest extent permitted by law, the Service Provider shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to lost profits, data loss, or business interruption, even if advised of the possibility of such damages.

However, the Service Provider retains full liability for:

• Death or personal injury caused by negligence
• Fraud or fraudulent misrepresentation
• Any other liability that cannot be excluded or limited under applicable law

To the fullest extent permitted by law, the total liability of the Service Provider for any claim shall not exceed the amount paid by you to the Service Provider for the Application in the 12 months preceding the claim, or the minimum amount that must be paid under applicable law, whichever is greater. If the Application is provided free of charge, this means the Service Provider's liability is limited to the minimum amount permitted by applicable law.

The Service Provider accepts no liability for any loss, direct or indirect, that you experience as a result of relying entirely on third-party information provided through this Application, or for inaccuracies in content provided by third parties.

Indemnification

To the fullest extent permitted by law, you agree to indemnify and hold harmless the Service Provider, its affiliates, officers, directors, employees and agents from and against any claims, liabilities, damages, losses and expenses, including reasonable legal fees, arising out of or directly related to your breach of these Terms or your intentional misuse of the Application, including User-Generated Content you submit in violation of these Terms.

This indemnification does not apply to claims arising from the Service Provider's own negligence, breach of these Terms, or violation of applicable law. In jurisdictions where consumer indemnification is restricted by law, this clause shall be limited to the maximum extent permitted.

The Service Provider may wish to update the application at some point. The application is currently available as per the requirements for the operating system (and for any additional systems they decide to extend the availability of the application to) may change, and you will need to download the updates if you want to continue using the application. The Service Provider does not guarantee that it will always update the application so that it is relevant to you and/or compatible with the particular operating system version installed on your device. You should accept updates when offered; if you choose not to, the Service Provider may cease to support earlier versions and the Application may not function properly. The Service Provider may also wish to cease providing the application and may terminate its use at any time without providing termination notice to you. Unless they inform you otherwise, upon any termination, (a) the rights and licenses granted to you in these terms will end; (b) you must cease using the application, and (if necessary) delete it from your device.

Governing Law and Jurisdiction

These Terms and Conditions are governed by the laws of Austria, where the Service Provider (Ryokusoft GmbH, Assling) is established, excluding its conflict of law rules and the UN Convention on Contracts for the International Sale of Goods, except to the extent mandatory consumer protection laws of your country of residence provide otherwise.

Any dispute arising out of or relating to these Terms will be brought before the courts that have jurisdiction under applicable law. Nothing in this clause limits any rights you may have to bring a claim in a court that is competent under mandatory law.

DSA Compliance (Digital Services Act)

If the Application is an intermediary service as defined under the Digital Services Act (Regulation (EU) 2022/2065, "DSA"), the following provisions apply in addition to the terms above.

Point of Contact: The Service Provider maintains a single point of contact for direct communication with EU authorities and recipients of the service, reachable at admin@ryokusoft.com. Where the Service Provider is established outside the European Union, a legal representative in the EU has been designated in accordance with Article 13 of the DSA.

Content Moderation and Statement of Reasons: When the Service Provider restricts access to content, suspends or terminates an account, or otherwise limits the availability of the Application's features, a clear and specific statement of reasons will be provided to the affected user. The statement will include the nature of the restriction, the legal or contractual basis for the decision, and information on available redress mechanisms, in accordance with Article 17 of the DSA.

Notice and Action: Users and third parties may submit notices of allegedly illegal content through the contact details provided in these Terms. The Service Provider will process notices promptly, diligently, and without automated decision-making where the circumstances require human review. Notices will be acknowledged electronically and a decision communicated without undue delay, in accordance with Article 16 of the DSA.

Out-of-Court Dispute Settlement: Disputes regarding content moderation decisions, including decisions to restrict content or suspend accounts, may be submitted to an out-of-court dispute settlement body certified in accordance with Article 21 of the DSA. The Service Provider will engage with such bodies in good faith. Use of out-of-court dispute settlement does not affect your right to seek judicial remedy under applicable law.

Transparency Reporting: The Service Provider publishes periodic transparency reports covering content moderation activities, including the volume of notices received, actions taken, and automated means used, in accordance with Article 24 of the DSA. Reports are made available upon request at admin@ryokusoft.com.

These DSA provisions apply to the extent that the Application qualifies as an intermediary service under the DSA and does not replace or limit any rights or obligations under applicable consumer protection or data protection law.

Severability

If any provision of these Terms and Conditions is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, such provision shall be modified to the minimum extent necessary to make it valid and enforceable, and the remaining provisions of these Terms shall remain in full force and effect.

Entire Agreement

These Terms and Conditions, together with the Privacy Policy, constitute the entire agreement between you and the Service Provider concerning your use of the Application, superseding any prior agreements or understandings.

Changes to These Terms and Conditions

The Service Provider may periodically update their Terms and Conditions. Therefore, you are advised to review this page regularly for any changes. The Service Provider will notify you of any changes by posting the new Terms and Conditions on this page.

Previous versions of these Terms and Conditions will be maintained and made available upon request by contacting the Service Provider at admin@ryokusoft.com.

These terms and conditions are effective as of 2026-09-06.

Contact Us

If you have any questions or suggestions about the Terms and Conditions, please do not hesitate to contact the Service Provider at admin@ryokusoft.com.