Does Sendant need a phone number?
No. Sendant creates a cryptographic identity on your device, so you do not need to provide a phone number, email address, or account.
That reduces the personal data exposed at signup and makes Sendant easier to use when you want to talk without tying the conversation to a SIM card or address book identity. Curious why other messengers insist on one? See why Signal needs your phone number. For services outside Sendant that still ask for email, Emcognito lets you use a private alias instead of your primary inbox.
Can I use Sendant without installing an app?
Yes. Open app.sendant.io in a modern browser to use Sendant on desktop or iPhone with no install.
The browser client uses WebAssembly for the same crypto path as the app. Browser E2EE has real trust tradeoffs, so Sendant avoids calling the browser the highest-assurance tier. For the full landscape of no-install options, see encrypted messaging without installing an app.
Is Sendant end-to-end encrypted?
Yes. Messages are encrypted on your device before delivery. Sendant servers handle ciphertext, not message text.
Private keys stay on your device. Safety numbers and QR verification help people confirm who is on the other end.
How is Sendant different from Signal?
Signal is excellent, but it requires a phone number and does not offer a browser web client. Sendant needs no phone number and runs in a browser with nothing to install.
Sendant is not claiming Signal's maturity or audit history. The practical difference is access: identifier-free identity plus a persistent browser client. Full breakdown: Sendant vs Signal, and the story behind Signal's missing web version.
What happens if my contact is offline?
Your message waits as encrypted ciphertext in a store-and-forward mailbox, then delivers when the contact reconnects.
Honest wording matters: Sendant is built for intermittent or restricted networks and offline mailbox delivery. It is not a Bluetooth mesh messenger and should not be described as working with no internet at all.
Step by step: what happens to your message when the network fails.
Is Sendant audited?
Not yet. Sendant is built on X3DH and Double Ratchet primitives, and independent audit work is a launch gate before broad privacy-community promotion.
Until then, Sendant should be evaluated as an early private messenger with transparent limits, not as “battle-tested” or “most secure.”