End-to-end encrypted.
Add a contact by address to start. Only you and they can read what you send — not the relay, not Infinitum.
Calls
FabVoice™ and FabVid™ calls are end-to-end encrypted. Start one from any chat, or call back from here.
Settings
Your photo goes end-to-end encrypted to the people you chat with. The relay never sees it.
Chats
Your phone number
Link the number on your phone so FabriC++ users who call or text it reach you end-to-end encrypted instead. The relay keeps only a keyed hash of it, never the number. Calls and texts from regular phones still go over the phone network, unencrypted.
- LanguageApp language. Messages you receive translate into it.
FabriC++™ by Infinitum Corporation. Messages and calls are end-to-end encrypted; the relay can't read them.
Phone
A real phone number.
Call and text any phone from FabriC++. These go over the ordinary phone network through the relay's carrier (Twilio), so unlike FabriC++ chats and calls they are not end-to-end encrypted: the carriers can hear calls and read texts, and the relay keeps your phone history and texts for 30 days to sync your devices.
Not set up on this relay
The relay operator turns this on with a Twilio account and assigns numbers to accounts. See the README's FabriC++ Phone section.
Your number
Call or text
History
No calls or texts yet.
Earn
Your data, your choice.
Opt in by purpose. Only aggregate metadata counts are used — protected conversation contents are never monetized. Participating users share 70% of eligible net revenue, paid in $FAB to FIRM Wallet.
Participation
Balance
Payouts
Revenue split preview
Allocations are weighted by contribution. Each settlement is recorded on a hash-chained ledger (prototype stand-in for Firmament Network).
Consent receipts
Privacy and security
Keys on this device.
FabriC++ keeps your keys and history only here, encrypted. Nobody, including Infinitum, can recover them if you lose this device or forget your passphrase.
Status
Passphrase
Devices
Each device has its own keys. Contacts see every device on your list, signed by your account key, which only the primary holds.
Point the camera at the QR code on the new device.
Does the new device show this number?
If the numbers differ, cancel: the code may have been tampered with.
Linking and removing devices is done on your primary device.
On-device AI
Summaries, translation and suggested replies run on this device. They use the model built into the browser where there is one (Gemini Nano in Chrome); elsewhere (Firefox, Safari, phones) they use open models (Opus-MT for translation, Qwen2.5 0.5B for summaries and replies) that this relay passes through, downloaded once. Either way your messages never leave this device, and Infinitum never sees them. The relay can tell which models you download.
Cumulus://ID
Your Infinitum account. Linked, it can keep your encrypted backup and find it when you sign in on a new device. Cumulus never gets a key that can read your messages: a restore still needs your recovery key. Contacts don't see your CID.
Linking and unlinking is done on your primary device.
Backup
An encrypted file with your account key, contacts and message history, plus a recovery key shown once. Keep them apart. Anyone with both can take over your account.
Recovery key — write it down now, it is not stored anywhere: