Last updated: 2026-09-01
What we collect.
Email address — when you sign in with Google, so we can confirm your purchase and let you access the app on multiple devices.
Study progress — which words you've favorited, seen, and your playback speed preference. Stored so your progress follows you across devices.
Purchase record — that you bought the app, and when. We do not see or store your payment details — Lemon Squeezy (our payment provider) handles those directly.
Email address, if you request the free book — collected through our MailerLite sign-up form so we can send you the book and, if you opt in, occasional notes about Korean.
What we don't collect. No analytics and no ad identifiers. We don't sell your data. We don't share it with anyone except the service providers named below, and only for the purpose of running the app, processing your purchase, or sending the book you asked for.
Where it's stored. Google Firebase (Firestore + Authentication) — Google's cloud infrastructure.
Who we share it with.
Lemon Squeezy — processes your payment and handles refunds. They have their own privacy policy covering payment data.
Google Firebase — hosts our app's data infrastructure.
MailerLite — the email service that runs our free-book sign-up form and delivery. If you request the book, your email address is stored with MailerLite so they can send it and the follow-up notes you opted into. They have their own privacy policy covering that data.
How long we keep it. As long as your account is active. You can request deletion at any time.
Your rights. Email hello@firesidekorea.com to request a copy of your data or to have it deleted.
Contact. hello@firesidekorea.com