Effective date: June 5, 2026
Last updated: June 5, 2026
Mocco Group ("we", "our", or "us") operates the Langera iOS application (the "App"). This Privacy Policy explains what information we collect, how we use it, who we share it with, and the choices you have over your data.
By creating an account or using the App, you agree to this Privacy Policy. If you do not agree, please do not use the App.
| Data | Purpose |
|---|---|
| Email address | Account creation and authentication |
| First and last name | Personalizing your experience |
| Native language | Tailoring vocabulary and explanations |
| Profile photo (optional) | Displayed on your profile |
| Learning interests and themes | Personalizing content recommendations |
| Occupation and location (optional) | Generating relevant speaking phrases |
Learning progress data:
Device and usage data:
When you use the Speak feature, the App records your voice to assess pronunciation. Audio is processed by Microsoft Azure Cognitive Services (Speech SDK) in real time. We do not store raw audio recordings on our servers. Only the resulting pronunciation score and metadata are saved to your profile.
The widget reads task-completion status (vocabulary, review, speaking, listening done) and your XP and streak data from a shared local container on your device. This data never leaves your device through the widget.
We use collected information to:
We do not use your data for advertising, sell it to third parties, or use it to train AI/ML models outside your explicit speaking sessions.
We use Supabase as our backend database, authentication provider, and file storage. Your profile data, vocabulary progress, session history, and uploaded avatar are stored on Supabase infrastructure hosted in the EU (AWS Frankfurt region by default).
Supabase is GDPR-compliant and SOC 2 Type 2 certified. Review their Privacy Policy.
Pronunciation assessment audio streams are sent to Azure Cognitive Services in real time. Microsoft processes audio only to return a pronunciation score; audio is not retained by Microsoft beyond the duration of the API call. Review the Microsoft Privacy Statement.
The App uses Apple's WidgetKit, UserNotifications, and PhotosKit frameworks. Data processed by these frameworks is subject to Apple's Privacy Policy.
Subscription billing is handled entirely by Apple's App Store. We never receive or store your payment card information.
| Data type | Retention period |
|---|---|
| Account and profile data | Until you delete your account |
| Vocabulary and session progress | Until you reset progress or delete your account |
| Speaking scores | Until you reset progress or delete your account |
| Avatar images | Until you replace or delete them |
| Server logs | 30 days, then automatically deleted |
When you delete your account (via Account → Danger Zone → Delete Account), we permanently delete all associated personal data from our systems within 30 days, except where retention is required by law.
We implement industry-standard security measures including:
No method of transmission or storage is 100% secure. If you become aware of a security incident, please contact us immediately at privacy@langera.app.
Depending on your location, you may have the following rights:
All users:
EU / EEA residents (GDPR):
You additionally have the right to object to processing, restrict processing, and lodge a complaint with your local supervisory authority.
California residents (CCPA):
You have the right to know what personal information is collected, the right to delete, and the right to opt out of sale (we do not sell personal information).
To exercise any right, contact us at privacy@langera.app. We will respond within 30 days.
Langera is not directed at children under 13 (or 16 in the EU). We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, contact us and we will delete it promptly.
If you are located outside the European Union, your data may be transferred to and processed in countries where our service providers (Supabase, Microsoft Azure) operate. These transfers are subject to appropriate safeguards including Standard Contractual Clauses.
We may update this Privacy Policy from time to time. We will notify you of material changes by updating the "Last updated" date and, where appropriate, sending an in-app notification. Continued use of the App after changes constitutes acceptance.
Mocco Group
Email: privacy@langera.app
App: Langera
Bundle ID: com.moccotech.langera
For data deletion requests or privacy questions, email us directly. We aim to respond within 5 business days.