Privacy Policy
Privacy Policy
Effective Date: May 2026
R.C STUDIO operates the MemoMammoth mobile application.
This Privacy Policy explains how MemoMammoth collects, uses, shares, and protects user information when users use our app and related services.
Developer / Business Name: R.C STUDIO
Business Registration Number: 383-73-00554
Representative: Jang Sungwook
Address: Seoul, Republic of Korea
Contact Email: support@rcstudioservices.com
This Privacy Policy applies to the following app:
MemoMammoth
MemoMammoth is a language learning app that helps users learn words and sentences from their own text, subtitles, and video content.
MemoMammoth may collect or process the following types of information depending on the features used by the user.
When users sign in with Google, we may receive basic account information such as:
User identifier
Email address
Display name
Authentication token provided by Firebase Authentication
This information is used to provide account-based features, manage access status, and support premium or reward-based usage.
We may process information related to app usage, such as:
Reward access status
Premium subscription status
Remaining usage quotas
Translation request history required for service operation
Error or diagnostic information needed to maintain the service
Users may choose to use text, subtitles, selected words, selected sentences, or video-related content inside the app.
When users request features such as translation, word meaning lookup, or AI/context-based learning support, selected text or subtitle content may be sent to our server or third-party service providers only to provide the requested feature.
MemoMammoth may request microphone permission only when users choose to use audio-related learning features.
The app does not record audio in the background without user action. Microphone access is used only for features directly initiated by the user.
If users purchase a premium subscription, payment processing is handled by Google Play. R.C STUDIO does not directly collect or store full payment card information.
We may receive purchase status information from Google Play to verify subscription access.
MemoMammoth may use rewarded ads to provide limited free access to certain features.
Advertising services may collect or process advertising-related identifiers, device information, or usage data according to their own policies and Google Play requirements.
We use collected or processed information to:
Provide app features
Authenticate users
Manage premium subscription access
Manage rewarded ad access
Provide translation and word learning features
Improve app stability and service quality
Prevent abuse or unauthorized use
Respond to user inquiries
Comply with legal obligations and platform policies
MemoMammoth may use third-party services to provide app functionality.
These services may include:
Firebase Authentication
Firebase Cloud Functions
Google Cloud Translation
Google Play Billing
Google AdMob
Google Play Services
These third-party services may process user data according to their own privacy policies and service terms.
We do not sell personal information.
We may share or transmit user data only when necessary to:
Provide requested app features
Process authentication
Verify subscriptions or rewarded access
Provide translation or language-learning results
Comply with legal obligations
Protect the security and integrity of the service
We use reasonable technical and organizational measures to protect user data.
Data transmitted between the app and our servers is handled through secure communication methods such as HTTPS where applicable.
However, no method of transmission or storage is completely secure, and we cannot guarantee absolute security.
We retain user data only for as long as necessary to provide the service, maintain app functionality, comply with legal obligations, resolve disputes, and prevent abuse.
Users may request deletion of their account-related data by contacting us at:
support@rcstudioservices.com
When we receive a valid deletion request, we will delete or anonymize applicable user data unless retention is required for legal, security, fraud prevention, or legitimate business reasons.
MemoMammoth is not intended for children under the age required by applicable law.
We do not knowingly collect personal information from children. If we become aware that we have collected personal information from a child without appropriate consent, we will take reasonable steps to delete such information.
MemoMammoth may process data through servers or service providers located in countries other than the user’s country of residence.
By using the app, users understand that their information may be processed in locations where our service providers operate.
We may update this Privacy Policy from time to time.
When we make changes, we will update the effective date at the top of this page. Continued use of the app after changes means the user accepts the updated policy.
For questions, requests, or concerns about this Privacy Policy, please contact us at:
R.C STUDIO
Email: support@rcstudioservices.com