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PRIVACY POLICY
Privacy Policy
How Sing Freely handles audio, recordings, local data and network requests, and how you can manage or delete your data.
At a glance
- Songs, separated audio, singing recordings and transcription are processed on your device.
- No account is required. The app includes no advertising or cross-app tracking.
- Optional model downloads, visits to this website and support emails involve necessary network communication.
This summary is a reading aid. Please read the complete document below.
Scope and contact
This policy applies to the Sing Freely (随心唱) iOS app and the official website publishing this policy. The developer of Sing Freely (“we”, “us”) is responsible for the processing described here. The app provider is the developer identified on its App Store product page.
For privacy questions, data rights requests or support, contact support@netmusicapp.com.
Data processed on your device
The app’s core features require no account. We do not receive or create server copies of your songs, recordings or transcripts through the app.
Songs, lyrics, artwork and related metadata are used to build your local library, play audio and display lyrics.
Separated vocals and backing tracks, microphone recordings, performance mixes, transcripts, pitch information and scores are used for local processing, practice, playback and export.
Sort order, scoring mode, export format, download state and pitch caches save your settings, restore tasks and avoid repeated processing.
Microphone and file access
The app requests microphone permission when you start a singing recording and uses the microphone during recording. If you decline, features that do not require recording remain available. You can revoke permission at any time in iOS Settings → Privacy & Security → Microphone.
Imports read the files you select through the system file picker. We do not scan unauthorized folders or request access to your contacts, location or photo library.
When network communication occurs
Optional transcription model downloads
Automatic transcription is optional. Before first use, the app explains the download and obtains your consent to download model files. The current default source is Hugging Face and its file delivery services. To deliver files, the download service receives your IP address, requested file paths, request times and standard network request information. These requests do not contain your songs, recordings or transcripts. After download, transcription runs on your device; we do not send your audio to a third-party AI service.
You may leave transcription disabled or cancel a download in progress. Requests already completed cannot be undone. See the Hugging Face Privacy Policy for its handling of service data. If we add or change a download provider, we will update the relevant notice before it applies and obtain consent where required.
Visiting this website
This website is hosted by Vercel and uses Cloudflare for DNS, content delivery and security. When you visit, these providers process IP addresses, requested pages, access times, browser request information and necessary security logs to deliver pages, prevent abuse and maintain the service. We have not added advertising, analytics scripts, tracking cookies, external fonts or third-party embeds to these pages. Hosting and security services may independently create necessary logs or security identifiers. See the Cloudflare Privacy Policy and the Vercel Privacy Notice.
Contacting support
If you email us, we and our email provider process your email address, message and any attachments you choose to send, only to respond, troubleshoot and handle rights requests. Please share only what is necessary; songs and complete recordings are usually not needed. We do not use support content for advertising or AI model training.
Sharing, providers and international processing
We do not sell or rent personal information, perform advertising tracking across apps or websites, or integrate advertising or behavioral analytics SDKs into the app.
- Exports you initiate: the system share feature passes only the files or text you choose to the destination app or service you select. That recipient’s policies and your settings then apply.
- Necessary service providers: website hosting, content delivery and security, model file delivery and email support involve the providers described above. Information provided to processors is limited to what the service needs. We require processors to use it only for specified purposes and apply protection at least consistent with this policy.
- Legal or safety needs: we may disclose the limited information we actually hold when necessary to comply with applicable law or valid legal process, or to protect lawful rights. This does not give us access to audio on your device.
Hugging Face, Vercel, Cloudflare or email services may use infrastructure outside your country or region, as described in their privacy notices. For international transfers for which we are responsible, we follow applicable legal requirements, including notice, separate consent or other safeguards where required. On-device audio processing does not itself send audio to these providers.
Retention and deletion
Local content remains until you delete it or remove the app’s data. Deleting separation results keeps the original song. Deleting a song removes its local audio, artwork and associated separation results. Neither action deletes independently saved performances; delete those separately in My Performances.
Settings and unfinished recording drafts may be kept for recovery after restart. Downloaded transcription models remain for later offline use. To remove all local app data, choose Delete App in iOS; Offload App normally preserves documents and data.
The app does not provide its own cloud sync. Device backups may contain local content depending on your iOS, iCloud or computer backup settings. Downloaded transcription model directories are excluded from system backups. Deleting in-app content does not automatically delete existing backups, external source files or exported copies; manage them in their respective locations.
We retain support information only for handling requests, necessary follow-up and legal obligations, then delete or anonymize it when those purposes end. Any legally required retention is limited in scope and duration. Hosting, content delivery, security, download and email service logs follow the relevant providers’ retention rules. Contact the email below to request deletion.
Export any work you want to keep before deleting it. We have no copy of your local content and cannot restore deleted songs or recordings.
Your choices and data rights
You may revoke microphone permission, stop optional downloads, delete local content or stop using the app. Withdrawal does not affect processing lawfully completed before withdrawal. Reading this policy does not constitute consent to additional collection; operations requiring separate consent will request it separately.
Depending on applicable law, you may have rights to information, access, a copy, correction, deletion, restriction, objection, withdrawal of consent and complaints to a supervisory authority. For content on your device, use the local viewing, export and deletion features. For support information we actually hold, contact support@netmusicapp.com.
We request only information necessary to verify your request and respond within applicable legal deadlines. If we cannot fulfill it, we explain why. Do not proactively send passwords, identity documents or unrelated audio to prove your identity. The app has no account system, so account deletion is not needed.
Purposes, legal grounds and security
We process necessary information to perform imports, recording, playback, exports and support that you request. Features requiring authorization rely on your permission or consent. Website delivery, troubleshooting and security processing are limited to what is necessary to provide a reliable service, using the appropriate legal grounds under applicable law.
Local files are stored in the app’s system sandbox, and network model downloads use HTTPS. We apply reasonable access controls and security measures to support information we hold. No storage or transmission is absolutely secure. Protect access to your device and choose export destinations carefully. For incidents involving information for which we are responsible, we take remedial and notification steps required by law.
Children and younger users
Sing Freely is not specifically directed at children. Younger users should use it with a parent or guardian’s guidance and follow its App Store age rating and local requirements. Where processing legally requires a parent or guardian’s consent, that consent must be obtained. If a guardian believes we have received a child’s information without proper authorization, they may contact us to request review and deletion.
Policy updates
We publish updates here with an effective date and version. We provide appropriate additional notice for material changes, such as changes to purposes, data categories or recipients. Where renewed consent is legally required, continued use alone will not be treated as consent. The Chinese and English versions are intended to describe the same practices. Contact us about any discrepancy; your rights under applicable law are unaffected.
Contact us
Recipient: the Sing Freely developer. Describe your issue or data rights request and include only the information necessary to handle it.