Acceptance
These Terms of Use (the “Terms”) are an agreement between you and Shanghai Wangyue Huishi Technology Co., Ltd. (“we,” “us,” or “our”) governing your download, installation, and use of Metronome (the “App”). By downloading, installing, or using the App, you agree to these Terms. If you do not agree, do not use the App.
License
The App is licensed, not sold. Subject to these Terms and the applicable rules of the Apple App Store, we grant you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to use the App for personal, non-commercial purposes on compatible Apple devices that you own or are authorized to use. We and the applicable rights holders reserve all rights not expressly granted to you.
App Features and Timing Limitations
The App generates metronome audio and provides tempo selection, tap tempo, meter, and rhythm controls. Optional Pro features include advanced rhythm editing, additional beats and subdivisions, Tempo Trainer, Quiet Count, background and Lock Screen playback, a Live Activity, additional click sounds, and themes.
The App is a practice aid. Device load, audio interruptions, output-route changes, wireless or Bluetooth latency, and operating-system behavior can affect the timing of audible clicks or on-screen information. Do not use the App as the sole timing source for safety-critical, medical, emergency, or other situations that require a certified or fault-tolerant timing system.
Audio, Background Playback, and Live Activity
Playback may be interrupted by calls, alarms, other apps, audio-route changes, power conditions, or system policy. Background playback and the Live Activity also depend on device compatibility, system settings, and Apple-provided services and may pause, be delayed, or become unavailable. Choose an appropriate audio output for your situation and use a safe volume level.
Local Data and Backups
The App stores metronome settings and practice-mode configurations locally on your device. Clearing App data, uninstalling the App, or losing or damaging a device may erase those settings. Depending on your Apple backup settings, a system backup or device transfer may include local preferences. See the Metronome Privacy Policy for details about data handling.
Metronome Pro Purchase
Some features are unlocked through a one-time, non-consumable Metronome Pro in-app purchase. It is not a subscription and does not initiate recurring charges through the App. Pricing, taxes, payment, purchase approval, Family Sharing (if any), refunds, and purchase restoration are handled by the Apple App Store under its rules. We do not receive or store your payment card details.
The App uses StoreKit to verify the current entitlement associated with your Apple account and provides a Restore Purchases function. “Lifetime” or “one-time purchase” means that the Apple account associated with the purchase may use the unlocked entitlement while this App and the relevant product remain offered and supported through the Apple App Store. It is not a promise tied to any person’s lifetime and does not guarantee that the App, every feature, or compatibility with all future devices and operating systems will continue forever. Nothing in these Terms limits rights you may have under applicable consumer law.
Apple Platform Terms
If you download the App from the Apple App Store, Apple’s applicable App Store terms and, where applicable, the Apple Standard EULA may also apply. If these Terms conflict with mandatory platform terms, the relevant platform terms control to the extent of that conflict.
Acceptable Use
You must not misuse the App, interfere with its normal operation, bypass purchase or technical restrictions, gain unauthorized access to systems or data, distribute malicious code, or use the App for unlawful, infringing, harassing, deceptive, or harmful activity. Except where applicable law expressly permits it or an open-source license provides otherwise, you must not copy, modify, reverse engineer, decompile, sublicense, rent, sell, or distribute the App.
Intellectual Property and Third-Party Components
The App’s software, design, name, marks, original text, sounds, graphics, and other materials are owned by us or the applicable rights holders. Third-party and open-source components remain subject to their own license terms; these Terms do not restrict rights expressly granted to you by those licenses.
Updates, Compatibility, and Availability
We may provide updates, change or discontinue features, or stop supporting certain devices or operating-system versions when reasonably necessary. Apple services, system updates, hardware performance, and regional rules may affect the App. We will use reasonable efforts to maintain the App but do not promise that every feature will always be available or compatible with every device.
Disclaimer of Warranties
To the maximum extent permitted by applicable law, the App is provided “as is” and “as available.” We do not warrant that it will be uninterrupted, error-free, completely secure, or that its clicks, display, background playback, or other features will always be precise or suitable for your particular purpose on every device, output route, or environment. Any statutory warranty that cannot lawfully be excluded remains unaffected.
Limitation of Liability
To the maximum extent permitted by applicable law, we are not liable for indirect, incidental, special, punitive, or consequential losses arising from use of or inability to use the App, reliance on its timing, audio latency or interruptions, lost settings, or third-party services. These Terms do not exclude or limit liability or consumer rights that cannot lawfully be excluded or limited.
Termination
Your license under these Terms may terminate if you materially violate them. Upon termination, you must stop using and delete the App. Provisions that by their nature should survive—including intellectual-property, disclaimer, and liability provisions—remain effective after termination.
Minors
Users below the age of full legal consent in their region should use the App only with a parent’s or guardian’s consent and supervision. Parents and guardians are responsible for managing device features, supervising safe use, and approving purchases.
Changes to These Terms
We may update these Terms from time to time. The updated version will be posted on this page with a revised effective date, and we will provide additional notice where required by law. Continuing to use the App after an update takes effect means you accept the revised Terms. If you do not agree, stop using the App.
Contact Us
For questions about these Terms, contact Shanghai Wangyue Huishi Technology Co., Ltd. at contact@wangyuehuishi.com.