ZERNO.
Licence

Get a licence

First you can simply try it: five days of the full program, no payment and no code. After that — one licence, one price. Licences are issued by hand for now: you write, we issue the key and send it. Card payment on the site is currently available for cards issued in Russia only; from anywhere else, we sort out the payment by email.

01 · How it works
  1. Write to ask@zerno.photo — your name and the address to issue the licence to.
  2. We agree on the payment and you make it.
  3. In reply — an activation code that looks like ZRN-XXXX-XXXX-XXXX. Paste it into the licence window at the first launch. Before that, macOS will ask you to allow the program to run — how to do that is in First steps.
02 · How the check works

The licence is a signed file on your computer. The decision "to work or not" is taken locally; the program never asks the server for permission. The network is only needed to deliver a renewal: the file is valid for 30 days and renews itself quietly whenever the program goes online.

The server is down, you are on an expedition, no connection for a week — the paid term keeps working. For those with no internet at all there is a licence for a year without a single connection — ask for it separately, before you leave.

That is the purchased licence. The trial is different: there the permission to launch comes from the server, and every time — see below.

03 · Try it for 5 days

Five days of the full program, free: download it and press "Try it for 5 days" in the licence window — no code is needed for that. Nothing is held back: exactly what a licence gives, including batch export, social copies and the contact sheet.

You need the internet at every launch — the server keeps count of the days, not your Mac's clock; the trial is given once per Mac. You can leave your email, and a reminder will come two days before the end. After the five days your projects stay as they are: enter a code — and they open as they were.

04 · Who sells it

Licences are issued by Valeria Romodina, a self-employed individual under the Russian professional income tax regime. The conditions are in the licence agreement; what is kept about you and why — in the privacy policy. By paying for a licence you accept the agreement.

What's included
$77a year
Activations
two — any two computers, Mac or Windows, in any combination
Updates
every version of the program, new elements and presets during the year
Internet
about once a month
System
macOS 14 or later · Windows 11
Write: ask@zerno.photo We usually reply the same day
Renewal — the same address, the same price. The program learns about the renewal by itself the next time it goes online.