Privacy policy

The Ipsae web app

Who we are

Ipsae is made by Aquaberry LLC, 41 W Hwy 14 #463, Spearfish, South Dakota 57783, United States. Questions about this policy, and requests about your data, go to the address under Contact.

What we collect

Your account. Your email address, and a password if you set one. Passwords are stored only as a one-way hash. We also keep your settings, such as the language Ipsae answers in and whether romanization shows, and what you tell us when you begin: why you are learning Korean and how much you already know.

What you study. Your chats with Ipsae, including any photos or PDFs you attach. The Korean words, grammar, and sayings saved from those chats. Your study packs, daily plans, and review results. Short notes Ipsae keeps about you as a learner, such as what you keep getting wrong. Those notes are shown on your home page, and you can remove any of them there.

Billing. If you subscribe, payment goes through Stripe. Your card details go to Stripe, not to us. We give Stripe your email address and your Ipsae account number. Stripe tells us your plan, your subscription status, and your billing dates.

Tutor partners. If you join the Tutor Partner Program, we also keep your display name, your referral code, and the payout details you give us.

How you found Ipsae. On your first visit we note the page you arrived on, including its full address, the site that sent you (the referrer), any UTM tags in the link, and the time. If you came through an invite, referral, or tutor's link, we note its code. When you sign up, this is saved with your account. It tells us which links bring people to Ipsae, and it is how a tutor who referred you is credited.

Usage analytics. We use PostHog to understand how Ipsae is used. PostHog's script records the pages you open and the buttons and links you click, along with your browser, device type, and an approximate location worked out from your IP address. Our server also tells PostHog when certain things happen: you sign up (with how you found Ipsae, above), a trial starts, a payment goes through, or you finish a study session. Before you sign up you are an anonymous ID. After you sign up, these events are linked to your account number. The events our server sends never include your email address or anything you write in a chat.

Email. We send email through SMTP2GO: sign-in links and codes, a notice before a free trial ends, and a warning before an inactive account is deleted. In your first week we also send three emails about studying with Ipsae. Two of them may list Korean words you met in your chats. You can stop them with the unsubscribe link in those emails, or with the study email setting in Settings. There is no marketing newsletter.

Cookies. Ipsae sets a session cookie that keeps you signed in and remembers your language and how you arrived. If you choose to stay signed in, a second cookie does that for 14 days. The no-account demo at /try sets a cookie, kept for 180 days, that limits how many free questions one browser can ask. It also checks your IP address for the same reason, and holds it in memory only. PostHog keeps an ID in a cookie and in your browser's storage to recognise you between visits. Ipsae sets no advertising cookies.

How Ipsae uses AI

Ipsae's replies come from OpenAI's models. When you chat, Ipsae sends OpenAI your message, any photo or PDF you attach, earlier messages from the same conversation, and the parts of your account that help with the reply, such as words you are studying and the notes Ipsae keeps about you.

OpenAI also does work in the background. It picks out the Korean from your chats to save for study, helps build your daily plan, reads new conversations to update Ipsae's notes about you, indexes your study words so they can be searched, and turns Korean text into audio when you press play. Incognito chats still go to OpenAI for a reply. Ipsae just does not save words from them.

Questions you ask on the /try demo also go to OpenAI. They are not saved by Ipsae.

OpenAI handles this data under its terms for businesses using its API. OpenAI says it does not train its models on that data, and keeps it only for a limited time, up to 30 days, to watch for abuse. We record how much each AI request used and how long it took, but not what it said.

Who else handles your data

We use a small number of companies to run Ipsae. Each one gets only what its job needs.

• OpenAI — AI replies and the background work above.
• Stripe — payments and subscriptions.
• PostHog — usage analytics, stored in the United States.
• SMTP2GO — sending email.
• Fly.io — the servers that run Ipsae, in the United States.
• Neon — the database where your account and learning data are stored, on Amazon Web Services in the western United States.

Tutors. If you signed up through a tutor's link, that tutor sees your email address and the date you joined. They see how much of each study pack you know only if you turn on sharing in Settings, and you can turn it off again there. They never see your chats or the individual words you study.

Ads on ChatGPT. If you reach Ipsae from an ad shown in ChatGPT, the link carries a click ID from OpenAI. If you then sign up, or later make your first payment, we tell OpenAI that the click led to a signup or a payment, with the amount and plan for a payment. We send only the click ID: no email address, no IP address. If you did not come from one of those ads, nothing is sent.

We do not sell your data, and we do not share it with anyone for their own advertising.

Why we are allowed to use it

If you are in the European Economic Area or the United Kingdom, data protection law asks us to name a legal basis for each use of your data.

• To provide Ipsae to you (performance of our contract with you): your account, your chats and what Ipsae does with them, including sending them to OpenAI, your study data, billing, and account emails such as sign-in links and trial notices.
• Our legitimate interests, which we have weighed against yours: usage analytics, recording how you found Ipsae, crediting referring tutors, measuring our ads, limiting abuse of the free demo, and the study emails in your first week, which you can stop at any time.
• Legal obligations: keeping billing records for as long as tax law requires.

You can object to any use based on legitimate interests by writing to us. For analytics, blocking PostHog in your browser is enough; Ipsae works without it.

Where your data is stored

Ipsae's servers and database are in the United States, and so are the companies above. If you use Ipsae from another country, your data is sent to the United States. For data sent from the European Economic Area or the United Kingdom, we rely on the standard contractual clauses in our providers' data processing terms.

How long we keep it

• Your account and learning data stay for as long as you have an account.
• If your subscription ends, or a free trial ends without one, and you do not come back for a year, we delete the account. We email you a week before.
• When an account is deleted, its chats, attachments, study data, and notes are deleted with it. Records of AI usage (amounts and timings, with no content) and any tutor commission records are kept without being linked to you.
• Stripe keeps its own payment records, as the law requires.
• Analytics events stay in PostHog for up to seven years. Deleted data can remain in our database host's backups for up to a day.

Your choices

• You can see and remove the notes Ipsae keeps about you on your home page.
• Incognito chats keep their words out of your study list.
• You can turn tutor progress sharing on or off in Settings.
• You can cancel a subscription at any time from the Billing page.
• You can block or clear cookies in your browser. Ipsae needs its session cookie to keep you signed in, but works without PostHog.
• To get a copy of your data, correct it, or delete your account, write to us from the email address on your account. A copy comes in a common file format you can open elsewhere. Deleting your account also cancels any subscription. We reply within 30 days.

Depending on where you live, you may have other rights over your data, such as objecting to some uses of it or complaining to a data protection authority. Write to us and we will help.

Children

Ipsae is made for a general audience and is not directed at children under 13. We do not knowingly collect personal data from children under 13, and if we learn that we have, we delete it. If you think a child under 13 has given us their data, write to us. If you are under 18, use Ipsae with a parent's or guardian's permission.

Changes to this policy

When this policy changes, the date at the top changes too. If a change affects what we collect or who receives it, we email account holders before it takes effect.

The Ipsae Dual Subtitles browser extension

Ipsae Dual Subtitles shows two subtitle languages at once on Netflix and YouTube, and lets you look up Korean words as you watch. It is made by Aquaberry, who make Ipsae.

What it collects

Nothing. The extension has no account, no analytics, no ads, and no server of its own. It does not collect, sell, or share your personal data or your browsing history.

Subtitles stay in your browser

The extension reads the subtitles Netflix or YouTube already offer for the video you are watching, the same way their own player does, and shows them over the video. The subtitles are processed in your browser and are not sent to Ipsae or anyone else. If you choose an auto-translated YouTube track, the translation is made by YouTube. Clicking a Korean word shows a small card on the page. Nothing leaves your browser unless you then click a link to Ipsae.

What it stores

• Your settings, such as languages, layout, and text size, are kept in Chrome's storage for extensions. If Chrome sync is on, Chrome copies them to your other browsers signed in to the same Google account.
• Lines you save are kept only in this browser: the line, its translation if one was showing, the site, the video's ID and title, and the time in the video. You can remove them one at a time or all at once from the extension menu. Uninstalling the extension deletes them.
• Copy and Export CSV put your saved lines on your clipboard or in a file on your computer. The extension does not send them anywhere.

Links to Ipsae

The extension opens ipsae.ai only when you click a link to it, such as More on Ipsae on a word, or Open in Ipsae under your saved lines. These links open in a new tab with no referrer, so ipsae.ai does not learn which video you were watching. They carry UTM tags that say the visit came from the extension and which link was clicked. A word link also carries the word, so Ipsae can show it. Ask Ipsae about this line and Open in Ipsae copy text to your clipboard; nothing is sent unless you paste it. Once you are on ipsae.ai, the web app section above applies.

Permissions

• Storage: to keep your settings and saved lines.
• www.netflix.com and www.youtube.com: to read the subtitles and show them over the video. The extension does not run on any other site.

Chrome Web Store User Data Policy

Ipsae Dual Subtitles complies with the Chrome Web Store User Data Policy, including the Limited Use requirements. The subtitle text and saved lines it handles are used only to provide its features. They are not sold, not used for advertising or to decide creditworthiness, not transferred to anyone, and not read by any person.

Contact

For questions about this policy, or to make a request about your data, email justin.rowsell@aquaberry.io.