Privacy Policy

Last updated: 11 November 2026

This policy explains how Viral App Brewery Pte. Ltd. (“we”, “us”) handles information when you use the Emmersify app (“Emmersify”, “the app”) and this website.

1. Information we do not collect

• No account or sign-up in the app: the app doesn't ask for your name, email address, or phone number.
• No contacts, photos, or location access. The microphone, and the front camera if you choose to film yourself, are used only for speaking practice, only while you are recording (see section 3a), and only if you allow it.
• No advertising identifiers and no cross-app tracking in the app.
• No payment card details: App Store purchases are handled by Apple, and other purchases by Stripe. We never see your card number.

2. Information stored only on your device

To make the app work, Emmersify stores the following locally on your iPhone: words you save, flashcard review history and schedule, which clips you've watched or liked, and your settings (such as Simplified or Traditional Chinese), and your speaking-practice recordings (the last five for each exercise) with their scores. This data is not sent to us, except a copy of a recording sent once to be scored (section 3a). Deleting the app deletes it.

3. Information processed to deliver content

When you use Emmersify, the app downloads video clips and their subtitles from our content providers: Supabase (clip information) and Cloudflare (video delivery). Like any internet request, these requests include technical information such as your IP address, device type, and operating system version. We use this only to deliver content and keep the service secure and reliable; we do not use it to identify you or build a profile. These providers may keep short-term server logs under their own privacy policies.

3a. Speaking practice

Speaking practice (Read aloud and Daily topic) records you only after you tap Record, and stops when you tap Stop or the time runs out. iOS asks for your permission first, and you can turn the microphone off at any time in Settings. To score you, the app sends a copy of that recording, the text you read or the topic you talked about, and a random install ID (used only to limit how many scores a device can request each day) to our server at Supabase, which passes the audio to Google's Gemini API to transcribe and assess it. We do not store your recording: our server discards it once your score is returned, and we keep only the time, the exercise type, the recording length and the processing cost. Google processes the audio under the Gemini API terms as our service provider; on the paid API it is not used to train Google's models, though Google may keep prompts and responses for a limited period to detect abuse. The recording itself stays on your iPhone so you can replay it; the app keeps the last five per exercise, and deleting a recording or the app removes it.

Hearing your coach: when you tap to hear your coach's feedback or the better answer, the app sends that text and the install ID to our server at Supabase, which passes the text to the Gemini API to read it aloud. Your voice is not part of this. We keep only the time, the audio length and the processing cost, not the text. The audio is kept on your iPhone so it replays straight away.

Filming yourself (optional): before your first daily topic, the app asks whether you'd like to film yourself too. If you say yes and allow the camera, the front camera is used only while you talk, so you can watch yourself back. The video never leaves your iPhone: it is not sent to us, to Supabase or to Google, and only your voice is scored as described above. The app keeps the videos of your ten most recent talks; deleting a recording or the app removes its video. You can switch filming off at any time with the camera button, or turn off camera access in Settings.

4. Website waitlist

If you join the waitlist on this website, we store your email address, your browser's language setting, and the date you joined. We use them only to email you when Emmersify launches. They are stored with our database provider, Supabase, and are never sold or shared for marketing. We delete the list once we've sent the launch announcement, or sooner if you ask us at [email protected]. Joining is optional, and our legal basis is your consent, which you can withdraw at any time.

Feedback from early users: after a purchase on this website, we ask whether you'd be open to sharing feedback with our founder. If you say yes, we store the email address you enter, the anonymous ID of your purchase, your browser's language setting and the date, also with Supabase. We use them only to contact you about your feedback, and delete them when you ask us at [email protected] or once we no longer need them. Saying yes is optional, and you can withdraw your consent at any time.

5. Website analytics and advertising

This section is about this website only; the app contains none of these tools.

PostHog (analytics and session replay): to understand how visitors use the website, we use PostHog. It records the pages you view, the buttons you click, how far you scroll, the link or ad that brought you here, and technical details such as your browser, device type, approximate location derived from your IP address, and screen size. It may also record a replay of your visit (mouse movement, scrolling and clicks) so we can find confusing parts of the site. Everything typed into forms, such as your email address, is hidden in replays, and the page you land on after paying is never recorded. PostHog stores a random identifier in a cookie and your browser's storage so repeat visits can be recognised. Replays are kept for 30 days.

Meta Pixel: we use the Meta Pixel to measure our ads on Facebook and Instagram and to show them to people likely to be interested. When you visit, Meta receives the page address, the actions you take (viewing the early-bird price, starting checkout, joining the waitlist, completing a purchase), and information from your browser, including cookies that may let Meta link the visit to your Facebook or Instagram account. Meta uses this under its own privacy policy. You can control ads based on this activity in your Facebook or Instagram ad settings.

Meta Conversions API: when you view a page, see the early-bird price, start checkout or complete a purchase on this website, our server also tells Meta about it directly, so we can measure our ads even when your browser blocks the Pixel. It sends the event, the page address (without any link codes), your IP address, browser details, your country, the Meta cookies on your device (our server sets them on this website if they are missing, including the code of the Facebook or Instagram ad you tapped), a random visitor ID in hashed (scrambled) form, and for a completed purchase your email address in hashed form, which Meta can only match against accounts it already knows. We don't send this from the EU/EEA, UK or Switzerland.

EU/EEA, UK and Switzerland: if you visit from these regions, we don't use the Meta Pixel or session replay, and PostHog counts your visit in memory only, without cookies or a lasting identifier.

Our legal basis is our legitimate interest in understanding and improving our website and advertising. You can block these tools with your browser's privacy settings or a content blocker, and the site keeps working. To ask about or object to this processing, write to [email protected].

5a. App analytics and advertising

PostHog (app usage): the app sends PostHog the screens you open and the actions you take, such as starting or finishing a clip, saving a word, finishing a practice session or a speaking talk, and the steps of signing up for a subscription, together with a random ID created on your iPhone, your app language, app version, device model and iOS version. It does not send your saved words, your recordings or anything you type. It is not linked to your name or email. You can turn it off any time in Settings › Share usage analytics.

Meta (measuring our ads): we advertise the app on Facebook and Instagram. The app uses Meta's SDK so Meta can tell us when someone who saw an ad installs and opens the app, using Apple's private install measurement (SKAdNetwork). If you allow tracking when iPhone asks, Meta also receives your device's advertising ID, and RevenueCat tells Meta when you start a trial, subscribe, renew or get a refund, so we can see which ads work. If you don't allow it, Meta doesn't receive the advertising ID and we don't send it your subscription events. You can change this any time in iPhone Settings › Privacy & Security › Tracking. Meta uses this under its own privacy policy.

6. Subscriptions

In the app: subscriptions are purchased and managed through your Apple ID. Apple processes your payment and shares with us only what's needed to confirm your subscription (such as the product, purchase dates and renewal status). See Apple's Privacy Policy.

Subscription status: we use RevenueCat to check whether your subscription is active, restore purchases and unlock purchases made outside the App Store. The app creates a random, anonymous ID on your device; RevenueCat receives that ID, your purchase receipts and transaction details, and basic technical information (such as device model, operating system version, app version, country/storefront and IP address). It is not linked to your name. RevenueCat also sends subscription events to PostHog and, if you allow tracking, to Meta, as described in section 5a. See RevenueCat's Privacy Policy.

Payments outside the App Store: Stripe processes these payments and may act as the seller (merchant of record). Stripe collects your email address, payment details and billing country to process the payment, calculate tax and prevent fraud. RevenueCat receives your email address and purchase details so it can send you the link that unlocks the app and let you manage the subscription. See Stripe's Privacy Policy. We use this information only to provide your subscription, answer support requests and meet legal and tax obligations, and we keep it for as long as the law requires for transaction records.

Trial reminder: if you start a free trial and allow notifications, the app schedules a reminder on your device for the day before the trial ends. It is created and delivered locally; no notification data is sent to us.

7. Learning content

Subtitles, definitions, translations, and pronunciation guides are prepared in advance on our servers, partly with the help of AI tools. No personal data from you is used to create them.

If you select a group of words that doesn't have a ready-made explanation, the app asks our server to explain it. The app sends only which clip and which words you selected. Our server (Supabase) sends that sentence from the clip to Google's Gemini API, which writes the explanation, and keeps the answer so the next person who selects the same words gets it straight away. Nothing about you is sent to Google or stored with the answer.

8. Children

Emmersify is not directed to children under 13, and we do not knowingly collect personal information from children.

9. Your rights

Apart from a waitlist email address and the analytics described in sections 5 and 5a, we don't hold personal data about you — your learning data lives on your device and you control it. You can ask us to access, correct, or delete your waitlist email address or your website or app analytics data at any time. We comply with Singapore's Personal Data Protection Act 2012 (PDPA) and, for users in the EU/EEA and UK, the GDPR. If you are in one of these regions, California, or anywhere else with privacy laws, you may still contact us with any request or question and we will respond within the time required by law.

10. Changes

If we change how Emmersify handles data, we will update this page and the “Last updated” date above. Significant changes will be explained in the app's release notes.

11. Contact

Viral App Brewery Pte. Ltd., 20 Collyer Quay #11-05, Singapore
Email: [email protected]