Effective Date: November 8, 2026
MangoLab ("we," "us," or "our") operates the Chingu mobile application for iPhone and Android ("App"), website at getchingu.com ("Site"), and related services (collectively, the "Service"). This Privacy Policy explains how we collect, use, disclose, and protect your personal information when you use the Service.
By using the Service, you agree to the collection and use of information in accordance with this Privacy Policy. If you do not agree, please do not use the Service.
You can start using the App as a guest, without an email address. If you sign in or save your progress with Apple (on iPhone) or Google (on Android), we receive your email address and basic profile information from that provider.
We store the text messages you exchange with AI companions to maintain conversation continuity, provide language corrections, extract vocabulary for flashcard review, and improve the learning experience. If you report something a companion said, we store your report with a copy of the reported text so we can review it.
During a voice call with your AI companion, your voice is streamed in real time to OpenAI's Realtime API so the companion can understand you and answer. When you answer in a lesson or send a voice message, the recording is sent to OpenAI for speech-to-text transcription. We do not keep the audio of calls or lesson answers. Voice messages you send in chat are kept with that conversation so you can play them again, and are deleted with your account. Text transcripts are stored as part of your conversation data.
If you send a photo in chat, we store it with that conversation and send it to OpenAI so your companion can see it and reply. Photos are deleted with your account.
During onboarding you tell us your name, age range, gender, Korean level and language. We use these to personalize lessons and conversations, and we include them in the instructions we send to our AI providers so your companion can address you and match your level.
We collect data related to your learning progress, including vocabulary lists, flashcard review history, spaced repetition schedules, XP (experience points), companion relationship levels, streak data, and language proficiency assessments.
We automatically collect certain information about your device and how you use the Service, including device type, operating system version, app version, language settings, session duration, and feature usage patterns. Apple and Google may also share crash and performance reports with us through their developer tools.
Subscription payments are processed through the Apple App Store (on iPhone) or Google Play (on Android) via RevenueCat. We do not directly collect or store your credit card numbers or payment credentials. We receive transaction identifiers and subscription status information to manage your subscription.
We use the information we collect to:
Chingu uses artificial intelligence to power conversations with AI companions. Before any of the data below is sent, the App tells you what is sent and to whom and asks for your permission. If you do not agree, nothing is sent and the AI conversations do not start. Here is how your data is processed within the AI system:
We send OpenAI only what a conversation needs, so the live voice and replies run smoothly. We never send it your payment details, contacts or location. OpenAI processes this data on our behalf under its API terms for business customers, which limit its use to providing its service to us and require it to protect the data at least as well as this Privacy Policy does. Under these terms, data sent through its API is not used to train its models.
We do not sell your personal information. We share your data only in the following circumstances:
We retain your personal information for as long as your account is active or as needed to provide the Service. If you delete your account, we will delete your personal data within 30 days, including your conversation history, voice messages, photos, learning data, and profile information. Our Delete Your Account page lists what is deleted and what is kept.
We may retain certain information beyond 30 days where required by law, to resolve disputes, or to enforce our agreements. Anonymized or aggregated data that cannot be used to identify you may be retained indefinitely for analytics and service improvement purposes.
Depending on your jurisdiction, you may have the following rights regarding your personal data:
To exercise any of these rights, please contact us at minoerick120@gmail.com. We will respond to your request within 30 days.
The Service is intended for users aged 17 and older. We do not knowingly collect personal information from anyone under the age of 17. If we become aware that we have collected personal information from a user under 17, we will take steps to delete that information and terminate the associated account as soon as possible.
If you are a parent or guardian and believe your child under 17 has provided us with personal information, please contact us at minoerick120@gmail.com.
MangoLab is based in Vietnam. Your information may be transferred to and processed in countries other than your own, including the United States (where our AI and infrastructure providers operate). These countries may have data protection laws that differ from those in your jurisdiction.
By using the Service, you consent to the transfer of your information to these countries. We take reasonable steps to ensure that your data is treated securely and in accordance with this Privacy Policy.
The Chingu App does not use cookies. Our website (getchingu.com) may use essential cookies for basic site functionality. We do not use advertising cookies or third-party tracking pixels.
Within the App, we collect usage analytics as described in the "Device & Usage Information" section above. This data is used for improving the Service.
On iPhone, to know whether our own ads on Facebook and Instagram work, the App uses the Meta (Facebook) SDK. It sends Meta app events, such as installing and opening the App, finishing sign-up, opening the subscription screen and starting a trial or subscription, with device information such as the device model and operating system. Before your device's advertising identifier (IDFA) is used, the App asks your permission with Apple's App Tracking Transparency prompt. If you ask the App not to track, the identifier is not collected and the events are sent without it. We never send Meta your messages, your voice or what you say in the App. You can change your choice at any time in iOS Settings › Privacy & Security › Tracking.
The Android app does not include the Meta SDK. It does not use your device's advertising ID and does not track you across apps or websites owned by other companies.
With your permission, we send push notifications through Firebase Cloud Messaging (FCM) to remind you of streaks, deliver companion messages, and notify you of important updates. You can disable push notifications at any time through your device settings.
To deliver push notifications, we store a device token associated with your account. This token is deleted when you disable notifications or delete your account.
We may update this Privacy Policy from time to time. When we make material changes, we will notify you through the App or by other reasonable means. Your continued use of the Service after the effective date of any changes constitutes your acceptance of the updated Privacy Policy.
We encourage you to review this Privacy Policy periodically. The "Effective Date" at the top of this page indicates when this policy was last updated.
If you have any questions about this Privacy Policy or our data practices, please contact us: