Effective date: October 27, 2026
These terms set out the conditions for using SANGE Metronome – Simple Rhythm Practice (the App), provided by SANGE Studio (a sole proprietorship in Japan, the Operator).
1. Using the App
The App is a metronome for music practice and similar activities, for a broad range of ages including children. Please read these terms before use. For purchases and use by minors, obtain any required consent from a parent or guardian in accordance with applicable law and Google Play’s terms. Parents and guardians should review these terms and the Privacy Policy together with their children.
2. Price and operating environment
The App is sold on Google Play for a one-time payment. See the Google Play purchase screen for the price, currency and applicable taxes. Payment uses methods provided by Google Play; billing timing follows its purchase conditions. After completing the purchase, you can download and use the App through Google Play. Downloading requires a network connection and other necessary resources.
There are currently no subscriptions or additional in-app charges. Users are responsible for preparing devices, connectivity and other operating resources and paying their costs. Before purchase, check the store listing for supported operating systems and other requirements.
Refunds follow Google Play refund policy and applicable law. Apply through Google Play’s procedures. If directed to contact the Operator, or if you need help with a defect, contact the address in section 12. The Operator responds under that policy and applicable law. No additional independent money-back guarantee is offered.
A one-time purchase does not promise all future features or indefinite support for every device or operating system. This does not limit the offering expressly described in the store or elsewhere, or legally required repairs, updates or other obligations.
3. Precautions
Audio playback and timing may be affected by device performance, the operating system, other apps and Bluetooth devices. Accuracy is not guaranteed for precise measurement or safety-critical uses. Use an appropriate volume, considering your hearing and those around you.
The App uses Firebase App Check, Play Integrity API and Google Play automatic protection to prevent misuse. Failed protection checks may affect use, for example by prompting you to obtain a legitimate copy. If you have purchased legitimately but experience problems, contact the address in section 12.
4. Stored data
Settings and favorites are stored on the device. Data may be lost when the App is deleted, the device fails, or the operating system or App is updated. The Operator does not guarantee permanent retention or restoration of stored data.
5. Prohibited activities
Users must not break the law, infringe third-party rights, gain unauthorized access to the App or related systems, or interfere with operations.
6. Intellectual property
Intellectual property rights in the App belong to the Operator or their lawful owners. Open-source software, fonts and similar materials are subject to their respective licenses.
7. Handling of information
Information about users is handled in accordance with the separate Privacy Policy.
8. Changes, interruptions and termination
The Operator may change, suspend or discontinue the App for reasonable reasons such as improvements, maintenance or incident response. Except in emergencies, changes or termination significantly affecting users will be announced in the App or on a public page with reasonable advance notice.
If distribution or support ends, information will be provided as appropriate to the circumstances about the effect on installed copies, re-downloads, updates and contact details. This does not prevent refunds or other remedies available under law.
9. Warranties and liability
The Operator does not guarantee that the App is free of defects, always available or suitable for a user’s particular purpose.
If users suffer damage attributable to the Operator, the Operator is liable in accordance with applicable law. These terms do not limit users’ rights under Japan’s Consumer Contract Act or other laws.
10. Changes to these terms
The Operator may amend these terms in accordance with law. The changes and effective date will be announced in the App or on a public page before they apply. Where consent is legally required, the necessary consent will be obtained.
11. Governing law
These terms are governed by Japanese law, without excluding mandatory legal protections in the user’s place of residence. Disputes will be resolved by courts with jurisdiction under applicable law.
12. Contact
Operator: SANGE Studio (sole proprietorship in Japan)
Address: Mutsumi Building 3F, 2-10-48 Kitasaiwai, Nishi-ku, Yokohama, Kanagawa 220-0004, Japan
Contact: contact@sange-studio.com
Inquiries about defects, purchases and refunds are accepted. No uniform response or resolution time is guaranteed, but necessary action will be taken under applicable law and Google Play’s terms.