Privacy policy
Last updated: 21 July 2026
OGLingo (oglingo.com) is operated by Joseph David Loughran Colvin ("we", "us"). This policy explains what personal data we collect when you use OGLingo, why we collect it, and the choices you have.
What we collect
- Account details — your email address and name, collected by our sign-in provider Clerk when you create an account.
- Learning data — the language you are learning, your placement-test answers, your review history, and the messages you exchange with the tutor. This is the core of the product: it is what the spaced-repetition scheduling is built on.
- Usage data — page views, performance timings, errors, and interaction events, collected first-party to keep the service working and improve it.
- Payment data — subscriptions are processed by Stripe (via Clerk Billing). We never see or store your full card details.
How we use your data
We use your data to provide and personalise the service (scheduling your reviews, adapting the tutor to your level), to keep it reliable and secure, and to measure the performance of our advertising. We do not sell personal data.
AI processing
Messages you send to the tutor are processed by Anthropic, our AI provider, to generate replies, and spoken audio is generated by ElevenLabs. These providers process data on our behalf to deliver the service.
Cookies and similar technologies
- Essential — cookies set by Clerk to keep you signed in, and browser storage for preferences such as your interface language.
- Advertising measurement — we use the Meta Pixel, which sets cookies (such as
_fbp) to measure whether our ads on Facebook and Instagram lead to sign-ups. Information about your visit may be shared with Meta; when you are signed in we also share a hashed (irreversible in your browser) version of your email address so Meta can match your activity to your Meta account. See Meta's privacy policy. You can limit this through your browser's cookie settings.
Who we share data with
We share data only with the service providers we need to run OGLingo, acting on our behalf:
- Clerk (sign-in and account management)
- Stripe (payments)
- Anthropic (AI tutor replies)
- ElevenLabs (spoken audio)
- Fly.io (hosting)
- Meta (advertising measurement)
Retention
We keep your data for as long as your account exists. If you delete your account, or ask us to, we delete the personal data associated with it.
Your rights
Under applicable data-protection law (including the EU/UK GDPR and Mexico’s data-protection law) you can ask for access to your data, correction, deletion, restriction of processing, portability, or object to processing. To exercise any of these, email us. You can also complain to your local data-protection authority.
Contact
Joseph David Loughran Colvin — joe@mllith.com
If we change this policy, we will post the new version on this page.