We do not collect, store, or transmit any of your data ourselves, nor do we provide any data to any third party, apart from data that is essential to the core functionality of our application. Your on-chain Shielded (Sapling and Orchard) transaction details are never exposed to any third party.
Parties that may access some part of your data, including end-to-end encrypted transmissions, and client-queries for blockchain state include:
a lightwalletd service provider, by default: https://mainnet.lightwalletd.com
your Application store service provider (e.g. Google Inc. or Apple Inc.)
We do not collect, store, or transmit any meta-data about you.