Effective date: September 3, 2026
These Terms of Service ("Terms") govern your use of WristBeat for iPhone and Apple Watch (the "App"). WristBeat is developed and provided by an independent individual developer, identified as the provider or seller in the App Store listing ("we," "us," or "our"). By downloading, installing, or using the App, you agree to these Terms to the extent permitted by applicable law. If you do not agree, do not use the App.
1. Relationship to Apple's Terms
The App is licensed to you, not sold. Your use of the App is also subject to the Apple Media Services Terms and Conditions and Apple's Licensed Application End User License Agreement (the "Apple Standard EULA"), available at:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
These Terms supplement, and do not replace, the Apple Standard EULA. If they conflict, the Apple Standard EULA controls to the extent of the conflict, subject always to mandatory law and consumer rights. These Terms are between you and the developer, not Apple. The responsibilities concerning Apple are explained in Section 9.
2. Eligibility
You must be legally capable of entering into these Terms. If you have not reached the age of legal majority where you live, you may use the App only with the permission and supervision of a parent or legal guardian.
3. License and Permitted Use
Subject to these Terms and the Apple Standard EULA, we grant you a limited, non-exclusive, non-transferable license to use the App on Apple-branded devices that you own or control, as permitted by Apple's Usage Rules. Access through Family Sharing or volume purchasing is permitted to the extent allowed by Apple and enabled for the applicable product. Termination is governed by Section 11 and the Apple Standard EULA.
You may use WristBeat for lawful music practice, teaching, rehearsal, performance, recording, and other intended metronome uses, including as a professional musician.
4. Restrictions
Except where applicable law or an applicable open-source license expressly permits it, you may not:
- copy, modify, distribute, sell, lease, sublicense, or resell the App or any part of it; this does not prohibit using the App in your own professional music activities;
- reverse engineer, decompile, disassemble, or attempt to derive the App's source code;
- bypass or interfere with security, purchase mechanisms, technical limitations, or normal operation of the App;
- use the App to violate law or the rights of another person; or
- misrepresent your relationship with WristBeat or use WristBeat's branding without permission.
5. Your Content and Local Data
The App lets you create and store settings, rhythm configurations, songs, song sections, setlists, musical practice records, and recordings ("User Content"). As between you and us, you retain your rights in User Content. You are responsible for obtaining any permission required to record or share another person's performance or other protected content.
User Content is stored on your devices, and supported content is also stored in your personal iCloud account when you enable iCloud sync. Recordings are stored locally and are not included in the App's iCloud sync. Device and cloud synchronization are not substitutes for independent backups: updates, conflicts, and deletions can propagate between devices, and synchronization can be delayed or interrupted.
You are responsible for maintaining any backups you need and for ensuring that you have the right to enter or use your content. Deleting the App, erasing or replacing a device, or software or hardware failure may result in permanent loss of User Content. Copies may remain on another device, in iCloud, or in an Apple-managed backup. We cannot recover content from your devices or private Apple storage that we cannot access. Stopping sync or uninstalling the App does not automatically erase all such copies.
6. Music, Timing, Haptics, and Safety
WristBeat is a music-practice utility. It is not a medical device, healthcare service, emergency-alert system, or safety-critical timing instrument. It is not intended to diagnose, treat, cure, mitigate, or prevent any disease or health condition.
WristBeat makes no therapeutic claims and is not a substitute for medical advice, clinical equipment, or professional supervision. If you are considering rhythmic cues for rehabilitation, gait training, speech therapy, or another health-related purpose, consult a qualified healthcare professional. Musical practice features do not establish suitability for clinical use.
The optional Long Practice mode uses a system workout session on Apple Watch. HealthKit integration does not represent medical approval or certification, and does not turn musical practice into a medically validated exercise or therapy. The system may independently record activity or affect Health and Fitness totals while the session runs. You can stop this mode, manage permissions, and review Apple's records through the relevant App and system controls. The mode does not guarantee uninterrupted background operation, accurate fitness measurements, or compatibility with another workout session.
We aim to provide reliable timing, but cannot guarantee a particular timing tolerance, an uninterrupted session, or identical behavior on every device. Audio, visual, and haptic output may be affected by:
- device model, operating-system updates, and background execution or power-management limits, including when the screen locks or the wrist is lowered;
- low battery, Low Power Mode, memory pressure, or competing applications;
- system sound, haptic and Focus settings, watch fit, and the surrounding environment;
- Bluetooth or other audio-route latency, headphones, and connection interruptions; and
- calls, notifications, and other system interruptions.
Cues may be delayed, suppressed, interrupted, or unavailable, and paired devices may temporarily lose synchronization. Do not use WristBeat as a safety-critical timing source. Where a missed or inaccurate beat could materially affect a live performance, recording, examination, or other important activity, test your actual setup beforehand and keep an appropriate backup timing method. We do not guarantee uninterrupted background playback or a particular result from your practice.
Sound-based tempo detection is an estimate that can be affected by background noise, musical complexity, and microphone conditions. Nearby band sync can be affected by distance, interference, latency, and differences between devices. We do not promise perfect tempo recognition, sample-accurate synchronization, or uninterrupted recordings. Join shared sessions only with participants you trust, and check the selected tempo and connection state before relying on the result.
Use the App responsibly. Keep audio at a safe level, remain aware of your surroundings, and do not operate the App when doing so would distract you from driving, cycling, crossing roads, operating machinery, or another activity requiring your full attention.
7. App Availability and Changes
We may update, modify, suspend, or discontinue all or part of the App. Features may differ between iPhone and Apple Watch and may change because of hardware or operating-system requirements. We do not promise that the App will always be available, compatible with every device, uninterrupted, or error-free.
When reasonably practical, material changes that negatively affect existing users will be communicated through the App, an App Store update, or our website.
We will not materially remove an entitlement you have purchased without a reasonable alternative or any remedy required by law. Legal, Apple platform, or technical requirements may make a feature unavailable; this does not remove your mandatory rights or applicable remedies. A one-time purchase does not promise compatibility with every future device or operating system, or the inclusion of separately offered future products.
8. Intellectual Property
The App, including its software, design, artwork, sounds, text, trademarks, and other materials, is owned by us or our licensors and is protected by intellectual-property laws. No rights are granted except for the limited license expressly stated in these Terms and the Apple Standard EULA.
Feedback and suggestions are voluntary. You grant us permission to use feedback without restriction or compensation, provided we do not publicly identify you without permission.
9. Third-Party Services
The App depends on Apple devices, operating systems, the App Store, and related Apple services. You must comply with applicable third-party terms when using those services. We do not control their availability or changes, and nothing here excludes a responsibility that applicable law places on us.
Purchases and refunds
WristBeat is free to download. Some features require a one-time in-app purchase. This is not a subscription and does not renew automatically. The price and included paid features are displayed in the App Store or purchase screen before you confirm. These Terms do not themselves activate a charge. Future price changes apply to future purchases and do not retroactively change an amount already paid.
Apple processes App Store payments. Refund requests for Apple-billed purchases can be submitted through Apple's refund service. Eligibility depends on Apple's rules and applicable law. We do not directly process Apple's refunds, but you may contact us for support. Nothing in this section restricts a refund or other remedy you are entitled to by law. You can restore eligible purchases through the App using the Apple Account associated with the purchase. Purchased features support Family Sharing in accordance with Apple's eligibility and account rules.
Responsibilities concerning Apple
- We are responsible for the App and its content, and for maintenance and support that we offer or are legally required to provide. Apple has no obligation to provide App maintenance or support.
- Where an applicable warranty is not met, you may notify Apple and seek a refund of the App's purchase price as provided by Apple's terms and applicable law. Other App warranty obligations remain ours to the extent required by law.
- We, rather than Apple, address App-related product liability, regulatory, consumer-protection, and privacy claims, and third-party intellectual-property claims, to the extent those obligations are assigned to us by applicable law or the Apple Standard EULA.
- You must comply with applicable export controls and sanctions. You represent that your use is not prohibited by applicable U.S. embargoes or restricted-party rules.
- Apple and its subsidiaries may enforce the provisions of these Terms concerning their rights as third-party beneficiaries.
10. Privacy
Our handling of information is described in the WristBeat Privacy Policy:
11. Suspension and Termination
You may stop using the App at any time by deleting it from your devices. We may terminate your license to use the App if you materially violate these Terms. Upon termination, you must stop using and delete the App. Sections that by their nature should survive termination—including intellectual property, disclaimers, limitations of liability, and dispute provisions—will survive.
12. Disclaimers
To the maximum extent permitted by applicable law, the App is provided "as is" and "as available," without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, accuracy, quiet enjoyment, and non-infringement.
We do not warrant that the App will be uninterrupted, error-free, free of every defect, or suitable for your particular performance, recording, teaching, or practice requirements. Support communications and general product descriptions do not create additional warranties unless expressly agreed or required by law.
Nothing in these Terms excludes warranties, guarantees, or other rights that cannot lawfully be excluded under the consumer-protection laws that apply to you.
13. Limitation of Liability
To the maximum extent permitted by applicable law, we will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of data, profits, goodwill, or business opportunity arising from or relating to the App.
Subject to the Apple Standard EULA and mandatory law, our total liability for claims arising from the App or these Terms will not exceed the greater of (a) the amount you paid for the App and its in-app purchases during the 12 months before the event giving rise to the claim or (b) US$50. This supplemental provision does not reduce any remedy available to you under mandatory law or the controlling Apple Standard EULA.
These limitations do not apply to liability that cannot lawfully be limited or excluded, including where applicable liability for fraud, fraudulent misrepresentation, gross negligence, willful misconduct, death, or personal injury caused by negligence.
14. Governing Law and Disputes
Applicable law determines the law and courts governing disputes between you and the developer, subject to any controlling provisions of the Apple Standard EULA. These supplementary Terms do not impose a separate exclusive court, mandatory arbitration, or waiver of consumer protections. You retain any mandatory protections and rights to bring proceedings in your local courts, including those applicable to consumers in the EU or UK.
You are welcome to contact us to seek an informal resolution. Doing so is not a prerequisite to exercising a legal right, and does not prevent urgent relief, a complaint to a regulator, or a small-claims procedure where available.
15. Changes to These Terms
We may update these Terms to reflect changes to the App, applicable law, or our business. We will post the revised Terms and update the effective date. Where required by law, we will provide additional notice or request consent. Continued use after revised Terms take effect constitutes acceptance only to the extent permitted by applicable law.
16. Severability and No Waiver
If a provision of these Terms is found unenforceable, it will be enforced to the maximum extent permitted and the remaining provisions will remain in effect. A failure to enforce a provision is not a waiver of the right to enforce it later.
17. Contact
Questions about these Terms may be sent to:
WristBeat Support
Email: support@wristbeat.watchosapp.com
WristBeat 服务条款
生效日期：2026 年 9 月 3 日
本服务条款（以下简称“条款”）适用于您对 iPhone 和 Apple Watch 版 WristBeat（以下简称“本 App”）的使用。WristBeat 由独立个人开发者开发和提供；开发者身份以 App Store 产品页上的提供者或销售者信息为准，以下称“我们”。在适用法律允许的范围内，下载、安装或使用本 App 即表示您同意本条款。如果您不同意，请勿使用本 App。
1. 与 Apple 条款的关系
本 App 是许可给您使用，而非出售给您。您对本 App 的使用还须遵守 Apple 媒体服务条款和条件以及 Apple《许可 App 最终用户许可协议》（以下简称“Apple 标准 EULA”）：
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
本条款补充而不替代 Apple 标准 EULA。如果二者存在冲突，则在冲突范围内以 Apple 标准 EULA 为准，并始终保留强制性法律及消费者权利。本条款订立于您与开发者之间，而非您与 Apple 之间。有关 Apple 的责任分工见第 9 条。
2. 使用资格
您必须具备订立本条款的法律能力。如果您尚未达到所在地区的法定成年年龄，则仅可在父母或法定监护人的许可和监督下使用本 App。
3. 许可和允许用途
在遵守本条款和 Apple 标准 EULA 的前提下，我们授予您一项有限的、非独占且不可转让的许可，以便您按照 Apple 使用规则，在您拥有或控制的 Apple 品牌设备上使用本 App。在 Apple 允许且相应产品已启用的范围内，可通过家人共享或批量购买使用。许可终止适用第 11 条及 Apple 标准 EULA。
您可以将 WristBeat 用于合法的音乐练习、教学、排练、演出、录音及其他预期的节拍器用途，包括职业音乐活动。
4. 使用限制
除非适用法律或相应开源许可明确允许，否则您不得：
- 复制、修改、分发、出售、出租、再许可或转售本 App 或其任何部分；这不限制您在自己的职业音乐活动中使用本 App；
- 对本 App 进行反向工程、反编译、反汇编或尝试获取其源代码；
- 绕过或干扰本 App 的安全措施、购买机制、技术限制或正常运行；
- 利用本 App 违反法律或侵害他人权利；或者
- 虚假陈述您与 WristBeat 的关系，或未经许可使用 WristBeat 品牌。
5. 您的内容和本地数据
本 App 允许您创建和保存设置、节奏配置、曲目、曲目段落、演出列表、音乐练习记录和录音（以下简称“用户内容”）。在您与我们之间，用户内容的相关权利仍归您所有。录制或分享他人的演奏或其他受保护内容时，您负责取得所需许可。
用户内容保存在您的设备上；启用 iCloud 同步后，所支持的内容也会保存在您的个人 iCloud 账户中。录音保存在本地，不包含在 App 的 iCloud 同步中。设备或云同步不能替代独立备份：更新、冲突和删除可能在设备间传播，同步也可能延迟或中断。
您有责任自行保留所需备份，并确保您有权输入或使用相关内容。卸载本 App、抹掉或更换设备以及软件或硬件故障都可能造成用户内容永久丢失。副本可能保留在其他设备、iCloud 或 Apple 管理的备份中。我们无法从无法访问的设备或个人 Apple 存储中恢复内容。停止同步或卸载 App 不会自动删除所有这些副本。
6. 音乐、定时、触感和安全
WristBeat 是音乐练习工具，不是医疗设备、医疗服务、紧急警报系统或安全关键型计时仪器，也不用于诊断、治疗、治愈、缓解或预防任何疾病或健康状况。
WristBeat 不作任何治疗效果声明，不能替代医疗建议、临床设备或专业监督。如果您考虑将节奏提示用于康复、步态训练、言语治疗或其他健康相关用途，请咨询合格的医疗专业人士。音乐练习功能不代表本 App 适合临床使用。
可选的“长时间练习”模式使用 Apple Watch 系统运动会话。HealthKit 集成不代表获得医疗批准或认证，也不会使音乐练习成为经过医学验证的运动或治疗。会话运行时，系统可能独立记录活动或影响“健康”和“健身”统计。您可以通过 App 和系统的相应操作停止该模式、管理权限及查看 Apple 的记录。该模式不保证后台持续运行、健身测量准确，或能够与另一运动会话同时运行。
我们致力于提供可靠的节拍，但不保证特定精度范围、持续不中断的会话或所有设备上的相同行为。音频、视觉及触感输出可能受以下因素影响：
- 设备型号、系统更新、后台运行和电源管理限制，包括锁屏或放下手腕时的系统行为；
- 低电量、低电量模式、内存压力或其他应用占用资源；
- 系统声音、触感及专注模式设置、手表佩戴松紧和周围环境；
- 蓝牙或其他音频路由延迟、耳机及连接中断；以及
- 来电、通知和其他系统中断。
提示可能发生延迟、被抑制、中断或不可用，配对设备也可能暂时失去同步。请勿将 WristBeat 用作安全关键型计时来源。如果遗漏或不准确的节拍可能对现场演出、录音、考试或其他重要活动造成实质影响，请提前测试实际使用环境，并准备适当的备用计时方式。我们不保证后台播放始终不中断，也不保证特定练习成果。
声音识别定速属于估算，可能受背景噪声、音乐复杂度和麦克风条件影响。附近乐队同步可能受距离、干扰、延迟及设备差异影响。我们不承诺完全准确的速度识别、采样级精确同步或持续不中断的录音。请仅与可信任的参与者加入共享会话，并在依赖结果前核对速度和连接状态。
请负责任地使用本 App，保持安全音量并留意周围环境。在驾驶、骑行、过马路、操作机械或进行其他需要全神贯注的活动时，请勿因操作本 App 而分心。
7. App 可用性和变更
我们可能更新、修改、暂停或停止本 App 的全部或部分功能。iPhone 和 Apple Watch 的功能可能不同，也可能因硬件或操作系统要求而变化。我们不保证本 App 始终可用、兼容所有设备、不间断或没有错误。
在合理可行的情况下，对现有用户产生重大不利影响的变更将通过本 App、App Store 更新或我们的网站说明。
我们不会在未提供合理替代方案或法律要求的救济的情况下，实质性移除您已购买的权益。法律、Apple 平台或技术要求可能导致功能不可用，但这不排除您的强制性权利或适用救济。一次性购买不意味着兼容所有未来设备和系统，也不意味着包含另行提供的未来产品。
8. 知识产权
本 App 的软件、设计、美术、声音、文字、商标及其他材料归我们或许可方所有，并受知识产权法律保护。除本条款及 Apple 标准 EULA 明确授予的有限许可外，不授予您任何其他权利。
您自愿提供反馈和建议。您允许我们不受限制且无需支付报酬地使用相关反馈，但未经许可，我们不会公开识别您的身份。
9. 第三方服务
本 App 依赖 Apple 设备、操作系统、App Store 及相关服务。使用这些服务时，您须遵守适用的第三方条款。我们无法控制其可用性或变更；本条不排除适用法律要求我们承担的责任。
购买和退款
WristBeat 可免费下载，部分功能需要一次性内购。该购买不是订阅，不会自动续费。价格和包含的付费功能会在您确认购买前通过 App Store 或购买界面展示。本条款本身不会开通收费。未来价格变更仅适用于未来购买，不会追溯改变您已支付的金额。
App Store 付款由 Apple 处理。通过 Apple 付款的订单，可通过 Apple 退款服务申请退款；是否符合条件取决于 Apple 规则及适用法律。我们不直接处理 Apple 的退款，但您可以联系我们获取支持。本条不限制您依法享有的退款或其他救济。您可以使用购买时关联的 Apple 账户，通过 App 恢复符合条件的购买。已购买功能按照 Apple 的资格及账户规则支持家人共享。
有关 Apple 的责任分工
- 我们对本 App 及其内容负责，并提供我们承诺或依法应提供的维护和支持；Apple 没有义务提供本 App 的维护或支持。
- 如本 App 不符合适用保证，您可以按照 Apple 条款和适用法律通知 Apple 并申请退还 App 购买价款；其他依法应承担的 App 保证责任由我们承担。
- 在适用法律或 Apple 标准 EULA 将责任分配给我们的范围内，与本 App 有关的产品责任、监管、消费者保护、隐私及第三方知识产权索赔由我们而非 Apple 处理。
- 您须遵守适用的出口管制和制裁规定，并声明您的使用不受适用的美国禁运或受限制主体规则禁止。
- Apple 及其子公司可以作为第三方受益人执行本条款中涉及其权利的规定。
10. 隐私
WristBeat 对信息的处理方式见隐私政策：
11. 停止使用和终止
您可以随时从设备上删除本 App 并停止使用。如果您严重违反本条款，我们可以终止您使用本 App 的许可。许可终止后，您必须停止使用并删除本 App。按照性质应在终止后继续有效的条款，包括知识产权、免责声明、责任限制和争议条款，将继续有效。
12. 免责声明
在适用法律允许的最大范围内，本 App 按“现状”和“可用状态”提供，不附带任何明示、默示或法定保证，包括对适销性、特定用途适用性、准确性、安宁使用权和不侵权的默示保证。
我们不保证本 App 不间断、无错误、不存在任何缺陷，或满足您特定的演出、录音、教学或练习要求。除明确约定或法律要求外，客服通信及一般产品介绍不会形成额外保证。
本条款不排除适用于您的消费者保护法律中不得依法排除的保证、保障或其他权利。
13. 责任限制
在适用法律允许的最大范围内，对于因本 App 引起或与本 App 有关的间接、附带、特殊、后果性、惩戒性或惩罚性损害，以及数据、利润、商誉或商业机会损失，我们不承担责任。
在遵守 Apple 标准 EULA 和强制性法律的前提下，我们对因本 App 或本条款产生的索赔承担的责任总额，不超过以下两者中较高者：(a) 导致索赔的事件发生前 12 个月内您为本 App 及其内购支付的金额；或 (b) 50 美元。本补充约定不会减少您根据强制性法律或具有优先效力的 Apple 标准 EULA 可以获得的救济。
上述限制不适用于依法不得限制或排除的责任，包括适用情况下因欺诈、欺诈性虚假陈述、重大过失、故意不当行为，以及因过失导致死亡或人身伤害而产生的责任。
14. 适用法律和争议
您与开发者之间争议的适用法律和有管辖权的法院，由适用法律确定，并受 Apple 标准 EULA 中具有优先效力的条款约束。本补充条款不另行设置专属法院、强制仲裁或消费者保护豁免。您保留强制性保护及在当地法院提起诉讼的权利，包括欧盟或英国消费者享有的相应权利。
欢迎您联系我们尝试非正式解决争议；联系并非行使法定权利的前提，也不妨碍您寻求紧急救济、向监管机构投诉或使用适用的小额索赔程序。
15. 条款变更
我们可能为反映本 App、适用法律或业务的变化而更新本条款。修订后的条款将公布并注明新的生效日期。法律要求时，我们会另行通知或征求同意。在适用法律允许的范围内，修订条款生效后继续使用本 App即表示接受修订条款。
16. 可分割性和不弃权
如果本条款的某项规定被认定为不可执行，该规定将在法律允许的最大范围内执行，其余规定仍然有效。未执行某项规定并不构成放弃日后执行该规定的权利。
17. 联系我们
有关本条款的问题，请联系：
WristBeat Support
电子邮箱： support@wristbeat.watchosapp.com