Privacy Policy
Last updated: 13th February 2026
Welcome to Langadoo (“we”, “our”, “us”).
Your privacy is important to us. This Privacy Policy explains what data we collect, how we use it, and your rights.
By using our website and services (“Service”), you agree to this Privacy Policy.
1. Information We Collect
1.1 Account Information
When you create an account, we may collect:
Email address
Authentication information
Account preferences
This information is used only to provide and secure the Service.
1.2 User Content
You may create, upload, or store content in the Service (such as text, vocabulary, notes, or learning material).
We process this content only to provide the features of the Service.
Some content may be sent to third-party providers for processing (see Section 3).
1.3 Analytics (Anonymous)
We use Umami Analytics, a privacy-focused analytics platform.
No personally identifiable information is collected.
No non-essential cookies are used.
IP addresses are anonymized.
Analytics are used only to understand general usage patterns and improve the Service.
1.4 Error Monitoring
We use Sentry to detect and fix technical errors.
Sentry may collect:
Technical error logs
Device and browser metadata
Limited diagnostic information
We do not intentionally send personal content to Sentry.
1.5 Embedded Third-Party Content
Some pages may include embedded content such as YouTube videos.
Embedded content from third-party providers may behave as if you visited their website directly and may collect data, use cookies, or track interactions according to their own privacy policies.
We do not control these third-party systems.
2. How We Use Your Data
We use your data to:
Provide and operate the Service
Maintain security and prevent abuse
Improve performance and features
Communicate with you about your account or service updates
We do not sell your personal data.
3. Third-Party Processors
We may share limited data with trusted service providers strictly for functionality:
OpenAI
User content may be sent to OpenAI for AI-powered features such as content generation or analysis.
Data is processed according to OpenAI’s policies.
Umami Analytics
Used for anonymous traffic measurement.
Sentry
Used for error monitoring and system reliability.
Google / YouTube
Embedded videos may be served from YouTube and may collect usage data.
Stripe (Payments)
We use Stripe to process payments and manage subscriptions.
When you make a payment, your payment information (such as card details and billing information) is collected and processed directly by Stripe. We do not store or process your full payment card details on our servers.
Stripe may process personal data in accordance with their own privacy policies and security standards.
4. Cookies
We do not use non-essential cookies.
Some third-party embeds (such as YouTube) may set their own cookies, which are controlled by those providers.
5. Data Retention
We retain personal data only as long as necessary to provide the Service or comply with legal obligations.
You may request deletion of your account and associated data.
5.1 Copyright Reports
If you submit a copyright infringement report:
We collect and process:
- Your name and contact information
- Details of the alleged infringement
- URLs of the content in question
This information is:
- Used solely to process your copyright claim
- Retained for legal compliance purposes
- Shared only as necessary to resolve the claim
- Not used for marketing or other purposes
For more information, see our Copyright Policy in the Terms of Service.
6. Your Rights
Depending on your location, you may have the right to:
Access your data
Correct your data
Delete your data
Export your data
Withdraw consent
To exercise these rights, contact us at: [email protected]
6.1 Data Export
You can export a copy of all your personal data at any time from your Account Settings.
The export is provided as a downloadable JSON file and includes:
- Profile information
- Texts and learning content
- Video data and progress
- Saved vocabulary
- Audio clips
- Account settings and preferences
- Daily learning statistics
- Usage history
Exported data is generated on-demand and delivered directly to your browser. We do not store copies of your export.
6.2 Account Deletion
You can request deletion of your account and all associated data from your Account Settings or by contacting us at: [email protected]
To exercise any of these rights, use the options in Account Settings or contact us at: [email protected]
7. Security
We take reasonable technical and organizational measures to protect your data.
No system is 100% secure, and we cannot guarantee absolute security.
8. Changes to This Policy
We may update this Privacy Policy from time to time.
Changes will be posted on this page with an updated date.
9. Contact
If you have questions about this Privacy Policy, contact:
Email: [email protected]
Company: Langadoo