Quill
Everyone
info
10+
Downloads
About this app
Quill is a private, end-to-end encrypted messenger built for business teams that take confidentiality seriously.
Every message, photo, file, voice note and call is encrypted on your device with the Signal Protocol — the same cryptography trusted by security professionals worldwide. Our servers relay only ciphertext: we cannot read your conversations, and neither can anyone else.
PRIVATE BY DESIGN
- End-to-end encryption for every conversation (Signal Protocol: X3DH + Double Ratchet with perfect forward secrecy)
- Zero-knowledge server — no message content is ever stored server-side; undelivered messages wait as encrypted blobs and are purged on delivery
- Encrypted voice calls secured with DTLS-SRTP
- No ads, no trackers, no analytics SDKs, no advertising identifiers
BUILT FOR TEAMS
- Invite-only: accounts are created by your organisation's administrator, so you always know who can reach you — there is no public sign-up
- Private group chats with member verification and admin-only posting
- Share photos, files and voice messages — all encrypted
- Fast, familiar chat experience across Android, Windows and iOS (coming soon)
SECURITY THAT GOES FURTHER
- PIN or biometric lock before the app opens, with automatic locking after inactivity
- Screenshot blocking to protect conversations from screen capture
- Disappearing messages, one-time view media, and a full ephemeral mode that keeps no history at all
- Local data protected with encrypted storage (SQLCipher)
- Privacy-respecting push notifications that never contain message content
WHO IS QUILL FOR?
Quill is designed for businesses, teams and professional groups that need genuinely confidential communication — legal, finance, healthcare, management, or any team whose conversations shouldn't live on someone else's servers in plain text.
GETTING STARTED
Quill is invite-only. Your organisation's administrator creates your account and gives you your credentials. If your organisation doesn't use Quill yet, visit https://quill.clareinfotech.com or contact support@clareinfotech.com to get set up.
Privacy policy: https://quill.clareinfotech.com/privacy
Terms: https://quill.clareinfotech.com/terms
Every message, photo, file, voice note and call is encrypted on your device with the Signal Protocol — the same cryptography trusted by security professionals worldwide. Our servers relay only ciphertext: we cannot read your conversations, and neither can anyone else.
PRIVATE BY DESIGN
- End-to-end encryption for every conversation (Signal Protocol: X3DH + Double Ratchet with perfect forward secrecy)
- Zero-knowledge server — no message content is ever stored server-side; undelivered messages wait as encrypted blobs and are purged on delivery
- Encrypted voice calls secured with DTLS-SRTP
- No ads, no trackers, no analytics SDKs, no advertising identifiers
BUILT FOR TEAMS
- Invite-only: accounts are created by your organisation's administrator, so you always know who can reach you — there is no public sign-up
- Private group chats with member verification and admin-only posting
- Share photos, files and voice messages — all encrypted
- Fast, familiar chat experience across Android, Windows and iOS (coming soon)
SECURITY THAT GOES FURTHER
- PIN or biometric lock before the app opens, with automatic locking after inactivity
- Screenshot blocking to protect conversations from screen capture
- Disappearing messages, one-time view media, and a full ephemeral mode that keeps no history at all
- Local data protected with encrypted storage (SQLCipher)
- Privacy-respecting push notifications that never contain message content
WHO IS QUILL FOR?
Quill is designed for businesses, teams and professional groups that need genuinely confidential communication — legal, finance, healthcare, management, or any team whose conversations shouldn't live on someone else's servers in plain text.
GETTING STARTED
Quill is invite-only. Your organisation's administrator creates your account and gives you your credentials. If your organisation doesn't use Quill yet, visit https://quill.clareinfotech.com or contact support@clareinfotech.com to get set up.
Privacy policy: https://quill.clareinfotech.com/privacy
Terms: https://quill.clareinfotech.com/terms
End-to-end encrypted business messenger. Zero-knowledge. No ads, no tracking.
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 partiesLearn more about how developers declare sharing
- This app may collect these data typesPersonal info, App info and performance, and Device or other IDs
- Data is encrypted in transit
- You can request that data be deleted
What’s new
Group voice and video calls, add people to a call, change password, Android 16 back-button fix, call stability fixes.
App support
phone
Phone number
+918105925560
About the developer
CLARE INFOTECH
ivan@clareinfotech.com
S-112, Aaron Plaza, Kinnigoli, Talipady Village,
Dakshina Kannada, Karnataka 574150
India
+91 81059 25560
