Mmargin Privacy notice · updated 14 Oct 2026

What Margin keeps, and why

Margin is an interview practice room run by a small founding team in India. This notice explains what we collect when you practise, who processes it for us, how long we keep it, and how to have it deleted.

In short

What we collect

DataWhyHow long
A random browser ID in the margin_owner cookieTo show you only your own reports and preparations, and to apply daily limits6 months from your first visit
Your interview: what you type or say (as a transcript), and your code, queries, notes, canvas and test resultsTo run the interview and write your reportThe live session ends after 60 minutes; the report keeps the parts it quotes
Voice audio, when you choose voice modeStreamed to Gemini so the interviewer can hear you. Margin does not store the audioNot stored by Margin
Interview reportsSo you can review them and practise againUntil you delete them
Resume text, the role and job description you add, your answers to clarifying questions, and public pages you selectTo prepare a resume interview. The uploaded file itself is discarded once its text is extractedDeleted automatically after 90 days, or sooner if you delete the preparation
Feedback you send about a report, and an email address if you choose to give oneTo improve Margin and reply to you12 months
Anonymous usage events (pages visited, interviews started and finished), tagged with a one-way hash of the browser IDTo understand how people use Margin. No names, emails or interview content30 days in our logs

Who processes it

Google Cloud hosts Margin and stores reports and preparations in Mumbai, India. Google's Gemini models on Vertex AI run the interviewer, write reports and read resumes. These models may process your data outside India; today the interviewer's voice model runs in the United States and the evaluation models run on Google's global endpoints. Google acts as our service provider under its Cloud terms, which don't allow it to use this data to train its models.

Code you run in Python or SQL exercises runs in your own browser. The Python runtime loads from the jsDelivr content network.

Your choices and rights

You can delete a report from My reports and a resume preparation from its page at any time. Under India's Digital Personal Data Protection Act, 2023, you can also ask us to access, correct or erase your data, or withdraw consent. Write to us and include a report link from your browser so we can find your data, since we don't know your name.

Margin is meant for people aged 18 and over.

Contact

Email aumvyas0202@gmail.com with questions, deletion requests or complaints. We reply within 7 days.

If we change how we handle data, we'll update this page and the date above.