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A question, a problem, an idea: write to us. Every message gets an answer.

Write to contact@cayer.fr.

One address for everything: a question, a bug, a refund request, a school.

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Your notes stay in the European Union, they’re never sold to anyone, and PDF export is part of the product. To ask for access, a correction, or an export of your data, same as everything else: write to us.