blue_ghost - encrypted chat
Everyone
info
10+
Downloads
About this app
blue_ghost— Offline Encrypted Bluetooth Messenger
blue_ghost is an ad-free peer-to-peer encrypted messaging app that works entirely over Bluetooth. No internet connection, no servers, no accounts, no phone numbers, and no cloud storage.
Communicate privately with nearby devices using end-to-end encryption while remaining completely offline.
KEY FEATURES
• Offline messaging over Bluetooth
• End-to-end encrypted chat
• No internet required
• No servers or cloud infrastructure
• No account creation or registration
• No phone number required
• No ads or tracking
• Nearby device discovery
• Secure peer-to-peer communication
• Privacy-focused design
• Reconnect support for dropped Bluetooth sessions
• Typing indicators
• Adjustable interface scaling
• Hide timestamps
• Redaction Mode for concealed messages
• Mini games including dice rolls, coin flips, and rock-paper-scissors, ghost_tiles
SECURITY
blue_ghost is designed with a security-first architecture to minimize attack surface and maximize privacy.
• Double Ratchet encryption protocol
• ECDH key exchange
• Android Keystore hardware-backed identity protection
• ChaCha20-Poly1305 and AES-256-GCM encryption
• Forward secrecy and break-in recovery
• Replay attack protection
• Authenticated sequence numbers
• Hardware-assisted entropy collection
• Screen capture protection via FLAG_SECURE
• Root detection warnings
PRIVACY
Your conversations remain on your devices.
• No accounts
• No sign-up process
• No phone numbers
• No analytics
• No advertising networks
• No cloud backups
• No internet permission
• No remote servers
Session Seal technology allows both participants to cryptographically destroy session keys and message history simultaneously.
Privacy Mode hides message contents until intentionally revealed, helping protect conversations from shoulder surfing and accidental exposure.
WHY BLUETOOTH ONLY?
blue_ghost+ intentionally avoids Wi-Fi and internet connectivity to reduce metadata exposure and eliminate dependence on third-party infrastructure. Communication occurs directly between nearby devices without routing through external servers.
Designed for users who value privacy, local communication, digital minimalism, and secure offline messaging.
No cloud.
No metadata.
No compromise.
blue_ghost is an ad-free peer-to-peer encrypted messaging app that works entirely over Bluetooth. No internet connection, no servers, no accounts, no phone numbers, and no cloud storage.
Communicate privately with nearby devices using end-to-end encryption while remaining completely offline.
KEY FEATURES
• Offline messaging over Bluetooth
• End-to-end encrypted chat
• No internet required
• No servers or cloud infrastructure
• No account creation or registration
• No phone number required
• No ads or tracking
• Nearby device discovery
• Secure peer-to-peer communication
• Privacy-focused design
• Reconnect support for dropped Bluetooth sessions
• Typing indicators
• Adjustable interface scaling
• Hide timestamps
• Redaction Mode for concealed messages
• Mini games including dice rolls, coin flips, and rock-paper-scissors, ghost_tiles
SECURITY
blue_ghost is designed with a security-first architecture to minimize attack surface and maximize privacy.
• Double Ratchet encryption protocol
• ECDH key exchange
• Android Keystore hardware-backed identity protection
• ChaCha20-Poly1305 and AES-256-GCM encryption
• Forward secrecy and break-in recovery
• Replay attack protection
• Authenticated sequence numbers
• Hardware-assisted entropy collection
• Screen capture protection via FLAG_SECURE
• Root detection warnings
PRIVACY
Your conversations remain on your devices.
• No accounts
• No sign-up process
• No phone numbers
• No analytics
• No advertising networks
• No cloud backups
• No internet permission
• No remote servers
Session Seal technology allows both participants to cryptographically destroy session keys and message history simultaneously.
Privacy Mode hides message contents until intentionally revealed, helping protect conversations from shoulder surfing and accidental exposure.
WHY BLUETOOTH ONLY?
blue_ghost+ intentionally avoids Wi-Fi and internet connectivity to reduce metadata exposure and eliminate dependence on third-party infrastructure. Communication occurs directly between nearby devices without routing through external servers.
Designed for users who value privacy, local communication, digital minimalism, and secure offline messaging.
No cloud.
No metadata.
No compromise.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
What’s new
Removed some features specifically meant for testing purposes.
App support
About the developer
Luke Gilson
blueghost8833@gmail.com
16659 SE Powell Blvd #7
Portland, OR 97236-1849
United States
