“GuitarTune” Privacy Policy

Release Date: December 7, 2024

Updated Date: December 7, 2024

Effective Date: December 7, 2024

Company: Shanghai Rongrui Technology Co., Ltd.

This Privacy Policy helps you understand the following key points:

1) To ensure core and other functions run properly, we collect certain necessary information from you;

2) We store your personal information collected or generated during operation within China; we do not transfer it abroad. We retain your personal information only for as long as needed to provide the app and related services;

3) We will not share, provide, transfer, or obtain your personal information from third parties unless you consent;

4) We take reasonable security measures to protect your personal information. Specifically, we use industry-standard methods and make best efforts to safeguard your sensitive personal information;

5) How you can access, correct, delete personal information, withdraw consent, and file complaints.

If you disagree with this Privacy Policy but begin using the app, we will only collect what is necessary for basic functionality — meaning we cannot provide the full suite of services. However, we will de-identify/encrypt the data to protect it. By continuing to use the app, you are deemed to consent to our processing of your information as described herein.

We take your personal information protection seriously and treat it diligently. When you download, install, launch, browse, or use (“use”) the GuitarTune app and related services, we process your personal information according to this Privacy Policy. We encourage you to read it carefully and in full. Key sections related to your rights and data are highlighted in **bold**, so please pay particular attention below:

I. How We Collect & Use Personal Information

II. Use of Cookies & Similar Technologies

III. How We Store Personal Information

IV. How We Share, Transfer & Disclose Personal Information

V. How We Protect Personal Information

VI. Your Rights

VII. Minor Use Policy

VIII. Revisions & Notices of Privacy Policy

IX. Scope

X. How to Contact Us

XI. Other Provisions

 I. How We Collect & Use Personal Information

To offer you better products and services, we continuously improve our technology and may launch new or optimized features that require collecting or using new personal information or changing how we use it. In such cases, we’ll update this Privacy Policy or notify you via pop‑ups or pages, explaining the purpose, scope, and usage, and only proceed with your explicit consent.

“Personal Information” refers to any recorded information (digitally or otherwise) that can identify a natural person on its own or in combination with other information.

“Sensitive Personal Information” refers to data that could endanger personal safety, reputation, mental health, or lead to discrimination if leaked or misused.

While using GuitarTune and its services, we collect information based on legality, legitimacy, necessity. We collect or request information for:

1. Ensuring basic functionality;

2. Enabling features and services;

3. Optimizing and improving the app;

4. Ensuring product, service, and user safety;

5. Delivering ads;

6. Complying with laws and regulations.

(1) Actively collected personal information:

Please note: When you open this Privacy Policy or User Agreement page, your system may load Wi‑Fi or process information in WebView. That behavior is not triggered by our app and does not collect any data. We begin collecting and using your information only after you explicitly consent to this policy.

We collect information that you actively provide or generate during usage through:

1. Providing guitar tuning, ukulele tuning, or simulated guitar functionality:

(1) Guitar tuning requires audio recording permission to assess pitch. 2. During use, we request certain Android permissions for:

No. Permission How Obtained Purpose
1 Device info (IMEI/IMSI, MAC, IP, OAID) Silently collected Capture and upload crash/bug data and for analytics to improve product experience
2 INTERNET & ACCESS_NETWORK_STATE Silently collected To assess network quality
3 ACCESS_WIFI_STATE Silently collected To assess network quality
4 Microphone Requested at runtime with consent Required for pitch detection
5 Installed apps list Silently collected To detect if payment apps like WeChat/Alipay are installed
6 Clipboard access Silently collected To enable copying contact information


3. Use of third-party SDKs to collect your data:

(1) When you use our app and consent to this Privacy Policy, data collection and reporting may occur in the background or silently to improve the experience.

You can review third-party privacy policies via provided links:

We integrate third-party SDKs, including but not limited to Baidu Analytics SDK. Upon your authorization, these SDKs may collect your personal info (even in background or silent mode), including: device attributes (model, serial, OS version, config, IDFA/OAID/AndroidId/MAC), location (GPS/Bluetooth/Wi‑Fi), and device state (installed apps, running processes, sensors). Collected data is encrypted and de‑identified, and collection in background or silent mode may occur. We conduct due diligence and employ technical measures to control third-party access, but cannot be fully responsible for their actions. We strongly recommend you review their privacy policies to understand their practices. We only collect data after your explicit consent; if you don't consent, no data is collected or uploaded.

Third‑Party Data Sharing List

I. Third‑Party SDK Providers
Provider SDK Name Collection Method Data Collected Purpose Privacy Policy
Meiwei Bookmark (Beijing) Info Tech Co., Ltd LeanCloud Java SDK Native SDK collection User phone number, device connection info (browser type, carrier, language, Wi‑Fi) and device state info (installed apps) Storing user login data View third-party privacy policy


4. Ensuring product, service, and user safety:

(2) Legal exemptions from consent:

Please understand that under the following legal circumstances, we may collect/use personal info without your consent:

(1) For state or defense security;

(2) For public safety, health, or major public interest;

(3) For criminal investigations, prosecution, trial, or execution;

(4) When protecting life/property where consent is difficult;

(5) Info you publicly disclosed;

(6) Info from lawful public sources (e.g., news, government disclosures);

(7) Necessary for contract performance;

(8) Other legal circumstances.

II. Use of Cookies & Similar Technologies

Cookies and similar technologies are common online. When you use the GuitarTune app and services, we may store cookies or anonymous identifiers to collect info about your usage. These can help with authentication, security, service efficiency, faster login/response, and remembering settings to improve your experience.

III. How We Store Personal Information

(1) Storage location:

Per regulations, we store personal info collected during operation within mainland China and do not transfer it abroad.

(2) Storage duration:

We keep data only as long as needed to provide GuitarTune services. After expiration, we delete or anonymize it unless otherwise required by law.

IV. How We Share, Transfer & Disclose Personal Information

(1) Sharing:

We respect user privacy. Except in these cases, we do not share your data with any company, organization, or individual:

1. With your explicit consent;

2. As required by judicial or administrative authorities;

3. With affiliates, limit to necessary data per policy and obtain consent if purposes change;

4. With authorized partners solely to provide services, limited to necessary info, bound by confidentiality agreements.

(2) Transfer:

We do not transfer your data except:

1. With your explicit consent;

(3) Public disclosure:

We only disclose your data when:

1. With your explicit approval;

2. Required by law or mandate, provided we receive legal documents like subpoenas;

3. Under legal exceptions (same as listed in III(2)).

V. How We Protect Personal Information

(1) We take reasonabletechnical and 관리 controls to prevent unauthorized access, disclosure, alteration, damage, or loss.

(2) Use industry-standard encryption and anonymization and security mechanisms to prevent malicious attacks.

(3) Maintain a dedicated security department, management system, and audits. Only authorized personnel can access data.

(4) Although we follow accepted standards, internet threats can never be wholly eliminated. Thus, take caution to protect yourself.

(5) We have emergency response plans for information security incidents. We will notify you and regulators, explain the incident, its impact, our measures, and any remediation. Notifications may come via announcements, email, letters, or SMS.

(6) These protections apply only while you use GuitarTune services. Outside those, we are not responsible for data on other apps or sites.

VI. Your Rights

We respect your rights regarding your personal data and provide options to access, update, delete, or withdraw consent:

(1) Manage/withdraw consent:

You can disable features or revoke permissions in settings. Once revoked, services requiring that data will stop. This won't affect prior data uses.

(2) View this policy:

You can view it anytime under Settings → Privacy Policy. Product features may differ by device or app version.

(3) If operations cease:

We’ll stop collecting data, notify you, and delete/anonymize info.

(4) Account deletion:

While logged in, go to Settings → “Delete Account” or follow instructions here to request deletion. After identity verification, we will delete your account within 15 business days. If no login is required, account deletion isn't applicable.

Customer service email: rongruikj@163.com

Account deletion is irreversible. We will stop providing services, cease data collection, and delete/anonymize account info unless required otherwise by law.

(4) Complaints/Reports

Customer service email: rongruikj@163.com. You may file complaints or report via our published channels. If you believe your data rights are infringed, you can contact us via “My” → “Customer Support” or “Feedback”. We will respond within 15 business days after investigation.

VII. Minor Use Policy

If you're under 18, you must read and agree to this policy with parental or guardian supervision before using GuitarTune.

We protect minors’ data only in compliance with laws and only when parents or guardians consent or there's a legal basis. If we collect minor data without proven parental consent, we will remove it promptly.

Guardians with questions should contact us via the information provided in this policy.

VIII. Revisions & Notices of Privacy Policy

(1) To better serve you, GuitarTune services may evolve and we will update this Privacy Policy accordingly. Updates become part of this policy and are binding, but we won’t narrow your rights without explicit consent.

(2) After updates, we will present the updated terms before they take effect via a pop‑up in the app. You must consent to continue. If updates require collecting sensitive info (e.g., audio/video, location, contact), we will request your consent again prominently.

(3) For major changes, we will notify you explicitly via email, SMS, in-app, or pop-ups, explaining the changes. Major changes include:

1. Significant shifts in processing purposes, types, or methods;

2. Changes in ownership or structure due to business shifts or mergers;

3. New parties with whom data is shared or transferred;

4. Changes in your rights or how to exercise them;

5. Changes to responsible security departments or complaint channels.

IX. Scope

This Privacy Policy applies to services provided by Shanghai Rongrui Technology Co., Ltd. and its affiliates, including GuitarTune apps and website. It does not apply to third-party products or services with separate policies.

This policy does not cover:

1. Third-party products, content, advertising, or linked services within GuitarTune;

2. Third parties that advertise for GuitarTune.

If you use those, you are subject to their respective terms and privacy policies. Protect your info and share it only when necessary.

GuitarTune features may vary by device or app version; the final app version you use governs.

X. How to Contact Us 1. For questions, opinions, or suggestions, please email rongruikj@163.com.

2. If you believe we have violated laws or misused your data, email us and request deletion. We will confirm within 15 business days, verify your identity, and respond.

3. If unsatisfied, you can seek legal resolution through a competent people’s court.

XI. Other Provisions

(1) Titles are for convenience only and do not affect interpretation.

(2) Definitions:

1. “GuitarTune” refers to the app and related services owned and operated by us or affiliates.

2. “Affiliates” are entities that control, are controlled by, or are under common control with us.

3. “De‑identification” refers to processing that makes personal data unidentifiable without additional info.

4. “Anonymization” refers to processing that makes it impossible to identify the subject and cannot be reversed.

(3) This policy is owned by Shanghai Rongrui Technology Co., Ltd. We reserve the right to interpret and update it within legal bounds.