Privacy You Can Understand
This policy explains what Virtu processes on your device, what reaches our service providers, and the controls available to you.
Last updated: September 10, 2026
The Short Version
- Your scores, MIDI practice results, review history, and saved recordings are generally handled on your device. Optional cloud and sharing features send the data needed for those features to our services.
- Remote services handle account sign-in, subscriptions, notifications, diagnostics, attribution, and communications as described below.
- Google Analytics and Microsoft Clarity run on this marketing site only after you allow analytics cookies.
- Virtu does not sell personal information. We disclose the service providers that receive data to operate and improve the product.
This policy is provided by Forty Two LLC (상원12길 34, 13층, 성동구, 서울특별시, 대한민국 / 13th Floor, 34 Sangwon 12-gil, Seongdong-gu, Seoul, Republic of Korea). Forty Two LLC is the controller responsible for personal information processed by Virtu. References to “Virtu,” “we,” “us,” or “our” mean Forty Two LLC.
Information We Process
Local Practice & Recording Data
Account & Authentication Data
Subscriptions, Messages & Notifications
Diagnostics & Product Events
Website Analytics & Download Attribution
Why We Process It
- Provide the service: authenticate your account, evaluate MIDI practice, maintain review schedules, save requested recordings, restore entitlements, and deliver notifications.
- Operate and improve Virtu: investigate failures, secure the service, understand feature use, and measure whether downloads and campaigns work.
- Communicate with you: answer support requests and send newsletters or product updates you requested.
- Meet legal obligations: keep records or respond to valid legal requests where applicable.
Where the GDPR applies, our legal bases may include performance of a contract, our legitimate interests in operating and securing Virtu, your consent for optional marketing-site analytics and requested communications, and compliance with legal obligations. You can withdraw consent without affecting processing already carried out lawfully.
Service Providers & Disclosures
We disclose information to providers only for the functions below, subject to their terms and privacy practices. The data each provider receives depends on the feature and platform you use.
Sign-In
Purchases & Entitlements
Diagnostics & Product Events
Attribution
Notifications
Hosting & Email
Marketing-Site Analytics
We may also disclose information when required by law, to protect users or the service, or as part of a corporate transaction with appropriate notice and safeguards. Virtu does not sell personal information.
Cookies & Local Storage
Essential Local Storage
Optional Marketing-Site Analytics
Storage, Retention & International Processing
- Practice data stays in the installed app on your device until you use “Delete data from this device,” finish account deletion in the app, clear app data, or uninstall the app. Operating-system backups may keep copies for a while.
- Account and subscription records are kept while needed to provide the service. After account deletion, personal account details and Google or Apple sign-in connections are removed. We may keep limited purchase, refund, security, legal, or support records when needed to complete a transaction, respond to a support request, prevent fraud, protect the service, or follow the law; these records may still include details that identify you.
- Feedback and support messages are kept while needed to review and respond to them. Limited support records may remain after account deletion when needed to document or complete a request, and may still include details that identify you; temporary protected backups or legal obligations may also apply.
- Newsletter data is kept until you unsubscribe, ask us to remove it, or the requested communication is no longer offered.
- Diagnostics, attribution, and website analytics are retained according to our configured provider settings and only as long as reasonably needed for reliability, security, and measurement.
When you delete your Virtu account, we remove your personal account details and sign-in connections. Some limited records may remain temporarily in protected backups or where the law requires us to keep them. See the account-deletion page for details about deleting in the app or by email.
Providers may process information in Korea, the United States, and other countries where they operate. Where applicable law requires a transfer safeguard, we use a legally recognized mechanism or another lawful basis available for the transfer. Local privacy protections may differ by country.
Your Choices & Rights
- Change analytics consent at any time through Cookie settings.
- Unsubscribe from the newsletter through its unsubscribe link or by contacting privacy@virtu-oso.com.
- Disable notifications in Virtu or in your device settings.
- Choose “Delete data from this device” in the app settings; this does not delete your Virtu account.
- Delete your Virtu account or request deletion by email through the account-deletion page.
- Ask about access, correction, deletion, portability, or other rights by contacting privacy@virtu-oso.com.
We may need to verify your identity before completing a request. We respond within the period required by applicable law and may retain a minimal record of the request and response for accountability.
If you have a concern, contact privacy@virtu-oso.com. Korea's Personal Information Protection Commission or the California Attorney General.
Security & Children
Security
Children
Contact & Policy Changes
For privacy questions or requests, email privacy@virtu-oso.com . We review requests on business days and may need to verify your identity.
We may update this policy as Virtu changes. Material changes will be announced through an appropriate channel and with any notice required by applicable law.