Phassa Thai Privacy Policy

Last updated: 4 November 2026

Phassa Thai is an app for learning Thai, available on iOS, Android and the web. This policy explains what data the app collects, why, and what you can do about it.

What we collect

Account details from your sign-in provider. If you sign in with Google: your name, email address and Google account ID. If you sign in with Telegram: your Telegram user ID, name and username. We don't receive your password.
Learning progress. Lessons you complete, mistakes per lesson, which words you know, XP, streak and your daily goal.
Survey answers (optional). After you choose a language, and again after a few lessons, the app asks a few questions: for example your age range, the country and region you live in, the country you're from, your first language, why you're learning Thai, your level, your situation (student, working…), your education, how you found us, an organisation or class code, and how you use the app and feel about its ads. Every question is optional and you can skip the survey.
Speaking recordings (Thai Speaking course, members only). When you record an answer and send it, we keep the recording, the time you sent it and your teacher's result and remark.
Payment screenshots (members only). If you ask for membership, we keep the screenshot of your payment, the plan you chose and any note you add, so an admin can check the payment.
Usage statistics. How often the app is opened and how ads are shown or watched (for example whether a rewarded ad was finished), counted per day together with the platform (Android, iOS or web) and the app version.
Technical data. Our server keeps short-lived logs (such as IP address and request time) to run and protect the service, for example to limit repeated login attempts.

How we use it

To create your account and keep you signed in.
To save your progress and schedule reviews of words you're learning.
To keep the service secure and working.
To show the weekly leaderboard: other learners can see your first name, the first letter of your last name and the XP you earned this week (for your class, using the class code from the survey, and for everyone). You can hide yourself any time in Settings → Leaderboard; if you tell us in the survey that you're under 18, you're hidden unless you turn it on.
Your speaking recordings are heard only by the teacher assigned to you and by our admins, so they can check your Thai. Payment screenshots are seen only by our admins. Neither is public: they are kept in our database and opened only through short-lived private links.
If you enter an organisation or class code in the survey, that class's teacher can see your name, your progress (lessons, XP, streak, last active day) and which words you find hard, so they can help you.
If you use Report a problem on a question, our teachers read your report (the question, the reason and your note) to fix the course.
To understand who uses Phassa Thai and how, so we can improve the course, the app and how ads are shown. Survey results may be shared with partner organisations (such as teaching partners) only as totals that don't identify anyone.

We don't sell your personal data. We don't use your account or learning data for advertising; the ads below are chosen by Google.

Phassa Thai is free and supported by ads (see the terms of use). The iOS and Android apps show ads through Google AdMob; the website and web app (phassa-thai.app) show ads through Google AdSense.

Google and its partners may use cookies (on the web) or device identifiers (in the apps), and usage data, to show, personalise and measure ads.
Where the law requires it (for example in the EEA, UK and Switzerland), you're asked for consent first. In the phone apps you can change your choice any time in Settings → Privacy & ad choices.
If you tell us in the survey that you're under 18, the app only asks for non-personalised ads, suitable for teenagers.
You can turn off personalised ads in Google's ad settings.

See how Google uses information from sites or apps that use its services.

Notifications and speech

Practice reminders are scheduled on your device; no reminder data is sent to us. Spoken Thai is either a recording made by our teachers (audio files served from audio.phassa-thai.app, Cloudflare) or generated by your device's text-to-speech.

Android beta testers

If you sign up to test the Android app on phassa-thai.app/beta/, we keep your name, the Google account email you give us, and (if you add them) your phone model and note. We use them only to add your email to the Google Play tester list and to contact you about the test and your feedback. We don't share them with anyone except Google Play (your email, for the tester list). Ask us any time to remove you, and we delete them; we delete the list when the test ends.

Where your data is stored

Your account and progress are stored in a database hosted by Render (render.com) in Singapore. Sign-in tokens are kept in your device's secure storage (or your browser's local storage on the web).

Keeping and deleting your data

We keep your account, progress, survey answers, speaking recordings, payment screenshots and usage statistics while your account exists. You can delete your account and all its data at any time in the app (Settings → Delete account), which deletes it immediately, or by emailing us from the address linked to your account (or including your Telegram username), and we'll delete it within 30 days. Step-by-step instructions: Delete your account.

Children

Phassa Thai is not directed at children under 13, and we don't knowingly collect their data.

Changes

If this policy changes, we'll update the date at the top of this page.

Contact

Questions or deletion requests: hello@phassa-thai.app