Questions, answered

TACENZA makes private communication tools by CARTIQO: TACENZA Chat, an end-to-end encrypted messenger for chats, groups and communities, and TACENZA Mail, private email for people and teams, which is in development. An account needs only a username and a password.

An end-to-end encrypted messenger. It has one-to-one chats, groups with channels, roles and moderation, profiles, a public group directory, bots and live location. Messages are encrypted on your device before they leave it, so the server only ever stores ciphertext. More about Chat.

Private email for you, your team and your own domain, with shared addresses like support@ that can be assigned to team members, and optional zero-access encryption of stored mail. It’s in development: sign-up is built but not open yet. Email isn’t end-to-end encrypted, and we say so. What’s built so far.

Today, yes: TACENZA Chat and TACENZA Mail have their own sign-in, because Chat’s account keys never leave your device. We’re building towards one TACENZA account for every product. Until then, each app has its own settings.

Yes. TACENZA Chat Free is fully usable and has the same privacy as every paid plan: 1 GB of storage, 2 devices, 1 bot and attachments up to 25 MB. Paid plans add capacity.

TACENZA Chat has Plus at €4.99 a month (5 GB, 5 devices, 3 bots, 100 MB attachments) and Pro at €9.99 (15 GB, 10 devices, 10 bots, 500 MB attachments and priority support). TACENZA Mail will have the same tiers at the same prices. Yearly plans cost ten months’ price. Prices include VAT where it applies. Compare plans.

No. Encryption, protected chats, disappearing messages and safety numbers are the same on Free. You pay for capacity – storage, devices, bots and larger attachments – and convenience.

Yes, any time, in Settings › Plan in TACENZA Chat. A cancelled plan stays active until the end of the period you paid for. After a downgrade nothing is deleted; if you’re over the new limits, new uploads, devices or bots wait until you’re below them. How to cancel.

Payments are handled by Stripe on its own pages. Stripe sees your email and payment details; TACENZA never does. Stripe only gets a random reference from us – never your username, contacts, messages or files. Invoices and payment methods are in the Stripe customer portal, which you open from Settings › Plan.

Everything you send in TACENZA Chat is encrypted on your device, so the server stores ciphertext, hashes and public keys, and never learns your messages, group names, bios or contacts. There’s no analytics or tracking in the apps. Where something can’t be done privately, we say so. What the server stores.

Use your recovery key. Your device makes it when you sign up and shows it once; with it you can set a new password yourself. Nobody can reset your password for you – not even TACENZA – because nobody else can open your account. Reset your password.

In TACENZA Chat, open Settings › Account and choose Delete account. It’s permanent: your account, 1:1 chats and keys are deleted for good, you leave every group, and any subscription ends first. Nobody can undo it, including us. What deleting removes.

The Help Center answers common problems, and has a contact page for everything else. The status page shows whether every service is running.

At docs.tacenza.app. It explains how TACENZA Chat, TACENZA Mail and your account work, step by step, including how the encryption works and how to verify the app you’re running.