Privacy Policy

Updated October 8, 2026

1. Introduction

TonePerfect ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services.

Please read this privacy policy carefully. By using the App, you consent to the practices described in this policy.

2. Information We Collect

Personal Information

We may collect the following personal information:

  • Email: When you create an account or sign in using third-party services
  • Name: If provided through third-party authentication services
  • Profile information: From Google Sign-In or Apple Sign-In if you choose to use these services

Usage Data

We automatically collect certain information about your use of the App:

  • Learning progress and statistics
  • Features used and time spent in the App
  • Device type, operating system, and version
  • App performance data and error logs

Audio Recordings

To give you pronunciation feedback, the App records your voice while you practice speaking and processes it to score your pronunciation. Processing your recording to produce that feedback is necessary to provide the pronunciation features you choose to use. The following describes how these recordings are handled:

  • Your recording and practice text are processed by TonePerfect servers and, depending on the language, feature or fallback, an external speech-scoring provider. Voice Coach audio and messages may be processed by OpenAI. Google Cloud provides reference text-to-speech audio.
  • We do not use your voice to identify you, and we do not create voiceprints.
  • How long a recording is kept depends on where you record. In the app: each scored recording and its score log are stored in our Google Cloud Storage with your account, so we can answer score reports, fix scoring errors and improve scoring; they are kept until you delete your account. On toneperfect.app pages (tests, practice tools, /learn): the recording is used to compute your score and is not stored by us, unless you are signed in, confirmed you are an adult and turned on research contribution. Browser research recordings you contribute this way are kept for 180 days. Browser recordings made before 8 October 2026 were kept for research and diagnostics; contact us and we will delete them. When you report a wrong score, the recording is attached to the report and is deleted with your account. Processors keep data only as their own terms allow (section 5).
  • People under 18 are never included in the optional research dataset.
  • Optional: if you turn on “Contribute recordings to research” in Settings, we keep your recordings and may use them to improve TonePerfect and to build a free, public open research dataset for language learning. This is off unless you turn it on, your name and account details are removed, and because the dataset is released publicly, once a recording is in a published version it cannot be recalled (though we will exclude it from future versions if you withdraw). You can turn this on or off at any time in Settings → Privacy.

3. How We Use Your Information

We use the information we collect to:

  • Provide, maintain, and improve the App
  • Process your pronunciation and provide AI-powered feedback
  • Track your learning progress and personalize your experience
  • Communicate with you about updates, support, and promotional offers
  • Analyze usage patterns to improve our service
  • Use recordings and score logs to improve our pronunciation scoring. Adding a recording to the public open research dataset requires your consent (section 2).
  • Prevent fraud and ensure the security of our service
  • Comply with legal obligations

4. Data Storage

Account, progress and practice data are stored with Google Firebase and Google Cloud (Firestore in the EU multi-region eur3). App recordings are stored in Google Cloud Storage in the United States (US-EAST1). Processors listed in section 5 may process data in other regions (section 11). We use appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, disclosure, or destruction.

5. Third-Party Services

We use the following third-party services:

Authentication

  • Firebase Authentication: For secure user authentication
  • Google Sign-In: Optional authentication method
  • Sign in with Apple: Optional authentication method

Analytics and Performance

  • Firebase Analytics: To understand app usage and improve our service
  • Firebase Analytics and Crashlytics support usage measurement and diagnostics. Singular and TikTok support attribution; AdMob provides advertising in supported screens. Availability depends on platform and consent settings.

Advertising and attribution

  • iOS: the advertising identifier (IDFA) is available to us and our partners only if you allow tracking in Apple’s App Tracking Transparency prompt. If you decline, or are never asked, it is not available.
  • Android: AdMob, Singular and TikTok may use the Android advertising ID for ads and install attribution. You can reset or delete it in your Android settings.

Payments

  • RevenueCat: For subscription management
  • App Store, Google Play, Stripe, Lava and legacy NOWPayments orders: payment processing. RevenueCat manages store subscriptions; Resend delivers service and opted-in emails.

We do not store your payment card details. Your chosen payment provider handles payment information and sends us the purchase status needed to provide access.

Pronunciation Analysis

  • TonePerfect and an external speech-scoring provider: pronunciation assessment. OpenAI: Voice Coach and transcription. Google Cloud: reference speech synthesis.

Audio and text are sent to the providers needed for the feature you request. The external speech-scoring provider processes audio on its own servers, which may be outside the EU. We do not use voice recordings to identify you or create voiceprints. Research consent is separate from processing needed to provide a score.

6. Subscription Data

When you subscribe to TonePerfect:

  • In-app purchases are processed by the Apple App Store or Google Play. Purchases on toneperfect.app are processed by Stripe or Lava (older orders: NOWPayments).
  • We receive the purchase and subscription status we need to give you access (active, renewed, expired, cancelled, refunded).
  • We do not receive or store your full card or payment-method details.
  • Store subscriptions are managed in your Apple or Google account settings. For purchases made on toneperfect.app, use the link in your receipt or contact us.

7. Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. We will retain and use your information as necessary to:

  • Comply with our legal obligations
  • Resolve disputes
  • Enforce our agreements

Upon account deletion request, we will delete your personal data within 30 days, except where we are required to retain certain information by law.

8. Your Rights

Depending on your location, you may have the following rights regarding your personal data:

Access and Portability

You can request a copy of your personal data in a structured, commonly used format.

Correction

You can request correction of inaccurate personal data.

Deletion

You can request deletion of your personal data. This can be done through the App settings or by contacting us directly.

Opt-Out

You can opt-out of promotional communications and certain data collection practices.

To exercise any of these rights, please contact us at nik@toneperfect.app.

9. Children's Privacy

TonePerfect is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If we learn we have collected personal information from a child under 13, we will delete that information promptly.

If you believe we have inadvertently collected information from a child under 13, please contact us immediately.

10. Security Measures

We implement appropriate technical and organizational security measures to protect your data:

  • Encryption of data in transit and at rest
  • Secure authentication mechanisms
  • Regular security assessments and updates
  • Access controls limiting data access to authorized personnel
  • Monitoring for suspicious activity

However, no method of transmission over the Internet or electronic storage is 100% secure. We cannot guarantee absolute security.

11. International Data Transfers

We use infrastructure in France, Germany and the European Union, including Firestore in eur3, and audio storage in the United States (US-EAST1). External processors can process data in other regions under their own service terms.

We take appropriate safeguards to ensure that your personal data remains protected in accordance with this Privacy Policy.

12. California Privacy Rights (CCPA)

If you are a California resident, you have additional rights under the California Consumer Privacy Act (CCPA):

  • Right to know what personal information is collected, used, shared, or sold
  • Right to delete personal information held by us
  • Right to opt-out of the sale of personal information (we do not sell your data)
  • Right to non-discrimination for exercising your privacy rights

13. European Privacy Rights (GDPR)

If you are in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR):

  • Right to access your personal data
  • Right to rectification of inaccurate data
  • Right to erasure ("right to be forgotten")
  • Right to restrict processing
  • Right to data portability
  • Right to object to processing
  • Right to lodge a complaint with a supervisory authority

14. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy in the App and updating the "Last updated" date. You are advised to review this Privacy Policy periodically for any changes.

Your continued use of the App after any modifications indicates your acceptance of the updated Privacy Policy.

15. Contact Us

If you have any questions about this Privacy Policy or our data practices, please contact us at:

nik@toneperfect.app