Licence, devices and offline use

One key activates Vyapzio on one computer. It includes every future update and can move to a new computer three times a year. Here is how activation, checks and moves work.

The short version

Buy once, activate one computer, use every feature, get every update free. No subscription, no renewal and no free tier. All sales are final; see the refund policy.

#Your licence key

A key looks like this:

VYPZ-XXXX-XXXX-XXXX-XXXX

It is issued the moment a payment succeeds and is shown on the confirmation page, sent to the email address you used at checkout, and kept in your dashboard. Treat it like a password: anyone with the key can try to activate a computer with it.

Lost the email? Sign in to the dashboard with the same email address. If you cannot sign in, use Forgot password.

#Activating a computer

Install VyapzioSee Windows or macOS.
Create the owner accountThe first run asks for a name, email and password. This account is local to the computer.
Paste the keyOn the activation screen, enter the key and click Activate this computer. The app sends the key, an installation id, a hashed hardware fingerprint and the app version to the licence server.
ConfirmationThe server checks the key, marks this computer as the active device and returns a signed licence that the app stores on the computer.

Activation needs the internet once. If the message says the key is already in use, see Devices and moves or email contact@vyapzio.in.

#One licence, one computer

A licence activates one computer at a time. That is what "per computer" means on the pricing page, and it is why the licence costs the same whether one person or a whole counter uses it.

Several people on the same computer do not need several licences. Vyapzio keeps up to four local sign-ins on that computer (owner, accountant, manager, viewer), each with its own password and permissions. They all use the same books and the same licence.

Several computers need one licence each. Two shops, two laptops or a second office are separate computers.

Moving the licence to another computer

You can move a licence up to three times in a rolling 365-day period. A move is free and is counted when the new computer activates, not when the old one is switched off.

On the old computerOpen Vyapzio → Settings → Licence and click Deactivate this computer. The books stay on the old computer; only the activation is released.
On the new computerInstall Vyapzio and activate it with the same key.
No access to the old computer? Sign in to the dashboard, open Devices and remove the old computer, then activate the new one. This still counts as a move.

The dashboard shows how many moves are left and when the oldest one drops out of the rolling year. If you have used all three and the computer is genuinely broken, email support with the details; we can see the activation history.

#Working offline

Vyapzio is offline-first: making invoices, printing, PDFs, stock, purchases and reports never need the internet. The licence check is the only thing that does.

After a successful activation or check, the app keeps working for 30 days without reaching the licence server.
When the connection returns, the app checks in the background and renews the pass.
If the licence is suspended or revoked for abuse, the app stops accepting new entries after the current pass. Your books are never deleted or held hostage; they stay readable on the computer.
An update needs a working check as well, because the update feed is tied to the licence.

The Offline mode setting in Settings → Privacy & internet goes further and stops every automatic connection, including the daily check. Use it when you want the app to make no network request at all; the 30-day pass still covers normal use.

#Updates are included for life

Every version released while you own the licence is free. There is no renewal date, no yearly fee and no separate update plan. The invoice says updates are included free for the lifetime of this licence, and that is the whole policy. See Updating.

#What the licence server receives

Activation and heartbeat send the licence key, a random installation id, a hardware fingerprint, the app version and the time. The fingerprint is built from basic system details (hostname, platform, architecture, CPU model, memory size, first network interface MAC address and OS release) and is stored as a one-way hash.

Nothing about your invoices, clients, amounts, GSTIN or bank details is sent. The books stay in the local books folder. See Privacy policy and Security and privacy.

#If activation fails

Message	What to do
"This key is not valid"	Check every group of four characters; the app uppercases as you type. Copy it from the purchase email rather than retyping.
"This licence is already active on another computer"	Deactivate the old computer, or remove it in the dashboard. That uses one move; see Devices and moves.
"No device moves left this year"	Email contact@vyapzio.in with the key, the old computer and the reason for the move.
"Could not reach the licence server"	Check the connection and try again. A firewall must allow `https://app.vyapzio.in`.
"This licence has been suspended"	Email support; include any payment reference or chargeback notice you received.