Legal
Privacy Policy
Effective October 16, 2026
This policy explains how NativeTrainer: Chinese Tones (“we”) handles personal data when you use https://tones.fixmandarin.com, the Android app on Google Play, and the iOS app on the App Store. We sell a consumer Mandarin tone and pronunciation training service. Contact: obeulah36@gmail.com.
Who is responsible
The controller of personal data for this service is the operator of NativeTrainer: Chinese Tones, reachable at obeulah36@gmail.com. We do not currently list a registered company name. If you are an organization buying seats for learners, see our Data Processing Agreement.
What we collect
We collect only what we need to run accounts, payments, and the practice app:
- Account data from Clerk: name (if provided), email address, user ID, sign-in method (for example Apple or Google), and profile metadata we use to unlock Premium.
- Website payments (Freemius): email, license ID, plan, whether the license is active, canceled, or expired. Card numbers are handled by Freemius and its payment processors — we do not store full card numbers.
- Google Play purchases: product/SKU, purchase token, and subscription or one-time purchase status needed to verify and unlock Premium. Card numbers are handled by Google — we do not store full card numbers.
- App Store purchases: product/SKU, Apple transaction identifiers, and subscription or one-time purchase status needed to verify and unlock Premium. Card numbers are handled by Apple — we do not store full card numbers.
- Technical data: IP address, browser or app type, and basic request logs that our hosts may process to operate and secure the service.
- Preferences and practice state on your device: language choice, cookie-notice dismissal, optional pack progress, trainer level clears, and review favorites (localStorage).
- When you are signed in: trainer level clears and review favorites are also stored in our database (Supabase) so they can sync across your devices.
- Website advertising measurement, only if you accept the cookie banner: a Google Ads conversion cookie and a page view so we can measure ads that point to this website. This tag is not loaded in the iOS or Android apps, and it is not linked to microphone recordings.
Microphone and recordings
Record & compare / speak features use your microphone only on your device. Recordings stay on your device as a temporary local file so you can play them back next to the native clip. We do not upload, store, or transcribe your voice on our servers.
You can deny microphone permission. The rest of the app still works without recording.
Why we use data (legal bases)
- Contract: create your account, deliver free and paid practice, sync Premium after checkout, sync trainer progress when signed in.
- Legitimate interests: keep the service secure, prevent abuse, understand basic reliability of the site.
- Consent: optional Apple or Google sign-in; microphone access; the optional Google Ads measurement cookie on the website.
- Legal obligation: tax, accounting, and responding to lawful requests.
Who we share data with
We do not sell your personal data. We use processors who help us run the product:
- Clerk — sign-in and account.
- Apple — only if you choose “Sign in with Apple”; and App Store billing when you buy inside the iOS app.
- Google — only if you choose “Sign in with Google”; Google Play for billing when you buy inside the Android app; and Google Ads for website conversion measurement only after you accept the cookie banner.
- Freemius — checkout, invoices, licenses, customer portal (website purchases only).
- Supabase — stores signed-in trainer progress and review favorites for cross-device sync.
- Vercel — hosting the website and APIs.
- Cloudflare (R2) — storing and serving practice audio and related media files.
- Practice audio (native recordings by our developer team) is served from our media hosting. Those media requests are not used by us to identify you.
Each processor has its own privacy policy. International transfers (for example to the United States) are handled under those providers’ safeguards, such as Standard Contractual Clauses where they apply.
Cookies
Login and website payment need essential cookies. Details are in our Cookie Notice. The website loads a Google Ads measurement cookie only after you accept. We do not sell personal data, and the iOS and Android apps do not load that tag.
How long we keep data
Account, license, Play, and App Store entitlement records are kept while your account exists and as long as we need them for billing, refunds, and legal records (typically up to several years for invoices). Voice recordings are not kept on our servers.
Account deletion and your rights
In the iOS or Android app, open Settings → Account → Delete account. You can also email obeulah36@gmail.com from the address on your account with the subject “Delete my account”, or use Contact. We will verify the request and delete or anonymize account data we control, except records we must keep for billing, tax, or legal purposes. Cancel any active App Store, Play, or Freemius subscription separately if you do not want further charges.
Depending on where you live (including the EEA/UK), you may ask to access, correct, delete, or export your data, object to or restrict certain processing, and withdraw consent. You may also lodge a complaint with your local data-protection authority. Email obeulah36@gmail.com.
Children
The service is not directed at children under 13 (or 16 in the EEA if that higher age applies). We do not knowingly collect personal data from children below that age.
Changes
We will update this page when our practices change. The date at the top is the latest version. Continued use after a material change means you accept the updated policy, except where the law requires consent.