Verify first
Compare safety numbers through another trusted channel before sending.
PRIVATE BY CONSTRUCTION
A small encrypted circle.
Entered deliberately.
Blackglass is an invitation-only iPhone messenger for a few people who know each other. Every application is reviewed by a person. Every device is verified by its safety number.
On your device
Message plaintext, private keys, local history
Relay can see
Metadata: identifiers, timing, IP addresses, sizes, traffic patterns
Pairwise encryption
Direct messages and immutable small groups use pinned libsignal sessions.
Know the boundary
Blackglass is not Signal and is not independently audited. A compromised or unlocked device can expose messages.
CURRENT COHORT
Apply for TestFlight
For Petie, Friday, and a few close friends. Applying does not create an account or send an invitation automatically.