If you agree, Blockstream will collect analytics data about your interactions with the Blockstream app. We use this data to inform which features to focus on, and improve the usability and reliability of the Blockstream App. This data is sent from the app to Blockstream servers and it’s used to optimize the user experience of Blockstream for you and others. It is never shared with any other business or third party.
Your app interactions across multiple visits and sessions are linked to a pseudonymous identifier. This is an opaque, unguessable identifier assigned by the system. No sensitive user data or individual wallet information is collected or attributed to the identifier.
This is an opt-in program. If you select Don’t collect data or turn off the Data collection setting in App Settings, no analytics data will be collected or shared with Blockstream. As always, your data is handled in accordance with our privacy policy, which we updated to provide transparency into this program.
What’s collected
- Pseudonymous identifier
- Language setting & country of use
- Interactions such as page visits & button presses
- Page loading times
- General app configuration such as whether Testnet or SPV are used
- Operating system & Blockstream app version
What’s NOT collected
- Recovery phrases or public/private key material
- Send/Receive addresses
- Types & amounts of assets transacted
- Account balances
- User contact information such as email address or phone number
- IP addresses*
- Granular location (more specific than country)
*IP addresses are unavoidably transmitted as part of how the internet works, but your IP not is persisted on our servers. Moreover, if you use Tor any analytics data you decide to share is passed through an .onion endpoint, so it doesn’t pass through a Tor exit node.
Our privacy measures
We've designed our analytics solution with your privacy as a primary priority. We don't want to know who you are, what you own, or store any information that might be used against you by a theoretical attacker. For each element of data that is collected, we have assessed the risk associated with its collection, modeling the threat of scenarios such as an involuntary or forceful data breach. Our objective is to ensure that even in the worst case scenario, this data can't be meaningfully used to find out anything about you.
- We encrypt all data collected at the storage level using AES256. None of the data generated by your app interactions is ever shared with a 3rd party.
- After two years, your data is automatically erased.
- Location is derived to the level of your country. It is used for the purpose of improving localization and communicating with our user base across the globe. We infer location information from your IP address only after masking and discarding the last octet of the address. After processing, the masked IP addresses are discarded and not persisted on our servers. If you use Tor instead, no location information can be inferred, because your traffic goes directly through an .onion endpoint.
- We don’t collect precise time-based information about when you use our app. We obscure the exact timing of events to avoid recording any app usage that could be associated with an event on the blockchain.
Within the Blockstream app settings you will find a persistent Help Blockstream App improve setting. You can change it at any time. If turned off, no usage information will be transmitted to Blockstream servers.