We respect and protect the privacy of all users. This Privacy Policy explains how M4S Converter and Hushan Hushan (Shenzhen) Technology Co., Ltd. ("we," "us," or "our") collect, use, store, share, transfer, disclose, and protect personal information when you use the App and related services. By agreeing to the User Agreement or continuing to use the App after this Policy is presented, you acknowledge that you have read and understood this Policy.
M4S Converter provides M4S scanning, merging, audio/video conversion, playback, and sharing tools. We follow the principles of lawfulness, legitimacy, necessity, transparency, security, and data minimization. For users outside mainland China, this Policy is intended to be read together with applicable data protection, consumer protection, app-store, and platform requirements in your country or region.
a) Personal registration or account information you provide when registering, logging in, restoring membership, using payment, or contacting us.
b) Information automatically received and recorded when you use network services or visit related pages, including IP address, device model, language, access date and time, software and hardware characteristics, operation logs, and similar data.
c) Personal data obtained from business partners through lawful means, such as payment status, channel statistics, or account authorization information, where necessary for service provision.
a) Content keywords, file names, media content, or other information you enter or select solely for local processing, unless a feature clearly requires network transmission.
b) Publicly available or user-published information that you choose to make public through third-party platforms.
c) Information related to violations of laws, service rules, or platform policies and measures taken in response.
To provide features, we collect and use personal information in the following ways:
1) Payment and account services: We integrate WeChat Open SDK to provide WeChat login, WeChat Pay, VIP activation, and order verification. Information may include WeChat nickname/avatar after authorization, user identifier, device information for security verification, order number, product, payment status, and VIP validity.
2) Crash and performance monitoring: We integrate Tencent Bugly to monitor stability and diagnose issues. Information may include Android ID or similar identifiers, device information, crash stack, error logs, performance data, and app running status.
3) Local storage and media processing: We use components such as MMKV and FFmpeg to store settings or account state locally and process M4S/audio/video files you actively select or authorize. Such processing is normally performed locally on your device. We do not upload your selected local media files to our servers for ordinary editing, conversion, playback, or saving.
No advertising notice: The App does not integrate advertising SDKs, does not display third-party ads, and does not collect, use, or share device identifiers for ad delivery, attribution, or personalized advertising.
For details about third-party SDKs: Please read the Third-Party SDK Sharing List, which lists SDK names, providers, purposes, collection methods, information fields, and privacy policy links.
a) We do not sell your personal information. We do not provide, rent, share, or trade personal information with unrelated third parties unless we have your authorization, it is necessary to provide services you request, it is required by law, or it is otherwise described in this Policy.
b) We may share necessary device, account, order, log, and payment information with affiliates or service providers for account security, payment processing, membership recovery, crash analysis, or customer support. We require recipients to process information according to confidentiality and data protection obligations.
c) We may disclose personal information according to applicable laws, court orders, regulatory requirements, rights-protection procedures, dispute handling, or to protect users, us, the public, or third-party lawful rights.
d) In the event of merger, division, acquisition, asset transfer, bankruptcy, or similar transaction involving personal information transfer, we will require the new holder to continue to be bound by this Policy or seek your consent where required by law.
e) For users outside mainland China, sharing and disclosure will also be subject to mandatory data protection and consumer protection requirements applicable in your jurisdiction.
a) The App supports registration or login through third-party accounts such as WeChat. With your authorization, we may obtain nickname, avatar, gender, region, and account identifiers from the third-party account so that we can identify you, provide login, recover VIP entitlements, and protect account security.
b) To protect account, service, and content security, we and our affiliates or service providers may share necessary device, account, order, and log information for fraud prevention, risk control, and dispute resolution.
c) We do not transfer personal information to unrelated third parties unless we have your explicit authorization or another lawful basis.
d) We retain personal information only for the period necessary to provide services, protect security, comply with legal obligations, or resolve disputes. After the necessary period, we will delete or anonymize the information unless otherwise required by law.
e) You may access, correct, delete, or manage your account information where the App provides such functions. You may also request account deletion. In the App, account deletion can be initiated from "Me - Account Management - Account Deletion" or the corresponding account page, depending on the version.
f) After account deletion, we will stop providing products or services based on that account and delete or anonymize relevant personal information according to your request, unless retention is required by law or necessary for dispute resolution.
a) We take reasonable security measures, including encryption, de-identification, access control, permission minimization, log review, and secure transmission where feasible. Please also protect your account, password, device, and verification code. No internet transmission or storage system can be guaranteed to be absolutely secure.
b) When using network services, payment services, or third-party services, you may need to provide information to transaction counterparties, payment platforms, login providers, or service providers. Please provide personal information only where necessary and contact us promptly if you discover leakage or abnormal use.
a) To ensure normal operation, we collect basic information such as hardware model, operating system version, network device hardware address where permitted, IP address or approximate location derived from IP, software version, network access method and type, and operation logs.
b) To reduce the impact of bugs, we may upload crash logs, device information, and runtime status to Bugly for crash statistics and troubleshooting.
a) Purpose: When you share or receive shared information, copy local file paths, invitation codes, links, or similar content, the App may need to access clipboard content to enable jump, sharing, recognition, or copy features.
b) Special note: Some operating systems may display a prompt that the App is reading the clipboard. The system prompt may not distinguish whether clipboard information is collected or only locally read for a feature, and false prompts may occur. If you have questions, contact us so that we can investigate.
We request system permissions involving personal information only when needed for specific features. You may deny permissions. If you do not use a feature, we generally will not request the corresponding permission.
Network access: requested when installing or using the App, for account, payment, feedback, crash reporting, and service delivery.
Photo/media/storage access: requested when you want to read, edit, convert, save, or export videos, M4S fragments, audio files, and related media resources in your album or selected folders.
Device information: used for compatibility, security, statistics, anti-abuse, and crash analysis.
a) To provide and optimize services, the App embeds third-party SDKs. After obtaining authorization where required, these SDKs may collect personal information while helping us provide more complete services. We manage SDK use according to applicable law and app-store requirements.
Basic principles:
Collection methods and scope:
Consent mechanism: SDK collection that requires consent will start only after your consent, such as through the initial privacy pop-up or feature-specific permission request.
For specific SDK names and policy links, please see the Third-Party SDK Sharing List.
a) We may update this Privacy Policy from time to time. For material changes, we will provide more prominent notice where required. If you do not agree with the changes, you may stop using the App. Continuing to use the App means that you accept the updated Policy.
b) We encourage you to review this Privacy Policy whenever you use the App.
Please contact us by email: feedback@hshstech.com