Privacy Policy

This Privacy Policy explains how Lingavio collects, uses, stores, and protects information when you use the Lingavio application.

Last updated: October 21, 2026

Lingavio is a language-learning application developed and operated by an independent developer. This Privacy Policy applies to the Lingavio Android application and related services.

By using Lingavio, you acknowledge that your information may be processed as described in this Privacy Policy.

Lingavio does not sell users' personal information.

1. Information We Collect

Account information

When you sign in using Google, Lingavio may receive information associated with your Google account, such as:

Lingavio may also create an anonymous account identifier when you use features that do not require a registered account, such as certain online battle or matchmaking features.

Learning and profile data

Lingavio may process information related to your use of the application, including:

League

The league runs in seasons of one calendar month. When you are signed in and earn experience points in a season, Lingavio places you in that season's league tables: seventeen leagues of up to 30 learners each, and a qualifying group for everyone else. Other learners using Lingavio can see in these tables:

The country flag is taken from the country code of your phone's SIM card or mobile network, or, if neither is available, from your device's region setting. Lingavio does not use GPS or any precise location for it. You can turn the flag off at any time in Profile → Flag in the league, and change your name in your profile.

Likes and gifts: when you send another learner a like or a gift, they can see your profile name (shortened as above), your avatar emoji, your avatar frame, your country flag (unless you turn it off) and when you sent it. If you fill in “About me” in your profile (a city, a gender and a few words), other learners can see it on your player card in the league.

Reports and blocks: you can report or block another learner from their player card. If you report a learner, we store the report — the reason, the time, and that learner's name and “About me” at that moment — to review it, and delete it when it is no longer needed for that. If you block a learner, the list of learners you have blocked is stored with your account and deleted with it.

Dungeon finds: when you find diamonds in a level of the Dungeon game while you are signed in, other learners may see your profile name (shortened as above), your avatar emoji and how many diamonds you found in the line of recent finds, for up to three days. Only your last find is stored; it is replaced by the next one and deleted with your account.

Voice and microphone data

Lingavio may request access to your device microphone when you use pronunciation or voice-answer features.

Speech may be processed through Android speech-recognition services available on your device. Depending on your device and settings, audio or speech data may be transmitted to the provider of the speech-recognition service, such as Google.

Lingavio does not intentionally store raw microphone recordings on its own servers. Recognition results may be used temporarily to evaluate your pronunciation or answer.

Technical and diagnostic information

Lingavio may automatically collect technical information such as:

This information is generally used for analytics, security, troubleshooting, and improvement of the application.

2. How We Use Information

Information may be used to:

3. Google Firebase Services

Lingavio uses Google Firebase services. Depending on the features you use, Firebase may process information on behalf of Lingavio.

Firebase Authentication

Firebase Authentication is used to support Google sign-in and anonymous authentication. It may process account identifiers, email addresses, display names, profile images, authentication tokens, and related technical data.

Firebase Realtime Database

Firebase Realtime Database may be used to store or synchronize account information, learning progress, user profiles, matchmaking data, battle status, league tables, and related application data.

Lingavio currently uses Firebase infrastructure located in the European region where configured, including the europe-west1 region.

Firebase Analytics

Firebase Analytics may collect application usage events and technical information to help understand how users interact with Lingavio and to improve the application.

Firebase Crashlytics

Firebase Crashlytics processes crash reports, device information, application state, and technical logs to help identify and fix errors.

4. Google Play Billing

Lingavio offers two subscriptions, Premium and "No ads", and sells packs of diamonds, an in-app currency, as one-time purchases. All of them are processed by Google Play.

Payments are processed by Google. Lingavio does not receive or store your full payment-card details. Lingavio may receive information necessary to verify and manage a purchase, such as:

For a pack of diamonds, the product identifier and the purchase token are used to add the diamonds to your account exactly once.

Diamonds can be spent in the app on lesson energy, combo shields and gifts in the league. Frames, avatars, cards and titles are no longer sold for diamonds: they are earned by learning. Items bought before remain yours.

Your purchases are also subject to Google Play's terms and privacy practices.

5. Advertising (Google AdMob)

Lingavio shows ads only to users without Premium. A Premium subscription removes ads. Ads may appear in these places:

"No ads" subscription: a separate subscription, cheaper than Premium, turns off the full-screen ads (after lessons, checkpoints, reviews and won Dungeon levels). The video ads you choose to watch for a reward stay available. Premium removes all ads.

Ads are provided by Google AdMob, a Google service. To show ads, measure them, limit how often they appear, and prevent fraud, Google and the advertising partners it works with may collect or receive information such as:

Where permitted, this information may be used to show ads based on your use of Lingavio and other apps and websites (personalized ads).

Google processes this information under its own privacy terms. To learn more, see How Google uses information from sites or apps that use our services and the Google Privacy Policy.

Consent

Where the law requires it, including in the European Economic Area, the United Kingdom, and Switzerland, Lingavio shows Google's consent form before any ad is requested; the form lists the advertising partners involved. Ads are requested only after you have answered that form.

You can review, change, or withdraw your choice in the app: Profile → "Ads and privacy". This option is shown where a consent choice is required and while you do not have Premium.

In U.S. states whose laws give you the right to opt out of the sale or sharing of your personal information for targeted advertising, the same option lets you opt out.

If you do not consent to personalized ads, Google may show non-personalized or limited ads instead.

Advertising ID settings

You can reset or delete your advertising ID, or opt out of personalized ads, in your Android settings, usually under Settings → Privacy → Ads or Settings → Google → Ads, depending on your device.

Lingavio does not sell your personal information and does not pass your lesson content, account email address, or learning progress to advertisers.

6. Local Storage on Your Device

Lingavio stores certain information locally on your device using technologies such as Android DataStore and Room Database.

Locally stored data may include:

Local data may be removed when you clear the application's data or uninstall Lingavio, although synchronized data may remain in cloud services until it is deleted separately.

7. Permissions

Lingavio may request the following Android permissions:

You can manage application permissions through your Android device settings. Some features may not work when a required permission is denied.

8. Sharing of Information

Lingavio does not sell your personal information. Information may be shared with service providers only when necessary to operate the application or, for users without Premium, to show ads, including:

Other learners: in the league, other learners can see the information listed under “League” above.

Service providers may process data under their own privacy terms and applicable data-protection obligations.

9. Legal Bases for Processing

Where the General Data Protection Regulation applies, Lingavio may process personal data under one or more of the following legal bases:

10. Data Retention

Lingavio retains information only for as long as reasonably necessary to provide the application, maintain security, comply with legal obligations, resolve disputes, and enforce agreements.

Account and synchronized learning data may be retained while your account remains active. Technical logs and analytics information may be retained according to the retention settings of the relevant service provider.

Your line in a season's league table is kept for that season and the one after it, which is needed to work out where you start the new season. When you take part in a new season, your older lines are removed; all of them are removed when you delete your account.

Some information may remain temporarily in backups after deletion before being automatically removed through normal backup-rotation processes.

11. Account and Data Deletion

Lingavio provides an account-deletion option within the application. You may use this option to request deletion of your Lingavio account and associated cloud data, including your lines in the league tables.

You may also request account or personal-data deletion by contacting: hello.ivdigital@gmail.com

When submitting a request, use the email address associated with your Lingavio account where possible. Additional verification may be required to protect your account from unauthorized deletion.

Certain information may be retained when required for legal, security, fraud-prevention, accounting, or dispute-resolution purposes.

12. Your Privacy Rights

Depending on your location, you may have rights regarding your personal data, including the right to:

To exercise these rights, contact: hello.ivdigital@gmail.com

13. International Data Transfers

Some service providers used by Lingavio may process information in countries other than the country where you live.

Where required, appropriate safeguards may be used for international transfers, such as adequacy decisions, contractual protections, or other legally recognized transfer mechanisms.

14. Data Security

Reasonable technical and organizational measures are used to protect information against unauthorized access, alteration, disclosure, loss, or destruction.

However, no electronic transmission or storage system can be guaranteed to be completely secure.

15. Children's Privacy

Lingavio is not specifically directed to children under the minimum age required to consent to personal-data processing in their jurisdiction.

Lingavio does not knowingly collect personal information from a child who cannot legally provide consent without authorization from a parent or legal guardian.

If you believe that a child has provided personal information without appropriate authorization, contact us so the information can be reviewed and, where appropriate, deleted.

16. Third-Party Links and Services

Lingavio may interact with third-party platforms and services. This Privacy Policy does not govern websites, applications, or services operated independently by third parties.

You should review the privacy policies of those providers to understand how they process information.

17. Changes to This Privacy Policy

This Privacy Policy may be updated when Lingavio's functionality, service providers, legal obligations, or data-processing practices change.

The date displayed at the top of this page indicates when the policy was last updated. Material changes may also be communicated within the application where appropriate.

18. Contact

For privacy questions, requests, or complaints, contact the Lingavio developer at:

Email: hello.ivdigital@gmail.com

Application: Lingavio
Package name: com.lingavio.app