Questions about Ochre, a bug to report, or something that should work better than it does — this reaches a real person, and every message gets read.
Most questions are already answered in the user guide — it covers setting up a business, issuing documents, taking payments, GST for India, and backup and restore.
For what happens to your data, see the privacy policy. Ochre operates no server that receives your books, so a data request is usually simpler than you expect.