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About and license

The About page shows which version of Input.Observer you have, the state of your license, the open-source software it includes, and the license agreement. Nothing on it is part of your configuration: there is nothing to apply or discard.

The About page​

Input.ObserverSimpleAdvanced
AUTOMATION
Actions
Text expansion
Snippets
Sandbox
App groups
Ignore groups
Gestures
SETUP
General
Appearance
Security
Help
About
About
Version, licensing and third-party software
Version
Number
0.9.0
Copy
Website
Visit website
Getting started
Show welcome
© 2026 Robert Yapchanyk
License
Status
Trial — 23 days remaining
License key
Apply license key…Buy a license
Third-party software
LibraryLicense
PCRE2BSD-3-Clause WITH PCRE2-exception
toml++MIT
View third-party notices…
License terms
Input.Observer End User License Agreement …
CardWhat it holds
VersionThe version number, with Copy, which copies the full version including the build number — useful for a bug report. Visit website opens Input.Observer's website, https://input.observer, in your browser. Show welcome opens the welcome again ("The welcome" below). The copyright notice is underneath.
LicenseStatus: "Trial — n days remaining", "Licensed to" your email, or "Trial expired". Apply license key… and Buy a license, which opens the pricing page, https://input.observer/pricing, in your browser.
Third-party softwareEvery open-source component Input.Observer includes, with its license. View third-party notices… shows each component's full license and copyright text.
License termsThe end user license agreement you accepted, to read or copy.

Input.Observer never connects to the internet itself. The website and store buttons open pages in your browser; checking a license key happens entirely on your computer.

The trial​

Input.Observer works fully for 30 days without a license. During the trial, every time it starts it shows "i.o - Activate License" with the days left: choose Continue Trial to carry on, or enter your license (below) and choose Activate. When the trial has ended, the choices are Activate or Exit: Input.Observer doesn't run until a license is active.

Entering a license key​

A license is your email address and a license key of the form V1-XXXXX-XXXXX-XXXXX-XXXXX. The key only works with the email address it was issued for.

  1. On the About page, choose Apply license key… ①. The tray menu's Apply License Key... opens the same kind of dialog.
  2. Enter your Email and License key exactly as you received them. Upper or lower case doesn't matter in the key.
  3. Choose Activate.
Apply license key
License key
V1-XXXXX-XXXXX-XXXXX-XXXXX
CancelActivate

While a license is active, the dialog opens filled in with it, ready for you to type a new key over it. If something goes wrong, the dialog stays open and says why:

MessageWhat it means
"That email and license key don't match."A typing mistake in either field, or a key issued for a different email.
"That license key is valid, but not for this version."The key is for a different major version of Input.Observer.
"Your license file is password-protected, so saving the new license needs your config password."Your files are password-protected (Security). Input.Observer asks for the password and tries again.
"Your license file could not be read. It may be corrupted."The protected license file is damaged. Nothing is written over it. Restore license.dat from a copy, or delete it, then activate again.
"The key is valid, but the license file couldn't be saved, so nothing was activated."The configuration folder can't be written to. Fix that, then try again.

The license is kept in license.dat beside your configuration file (The configuration file), never in config.toml, so it is never part of an export or a shared configuration. Styles you buy are tied to your license's email (Appearance).

The license agreement​

The first time you start Input.Observer (or during setup), it shows the license agreement, "i.o - License Agreement". Its first section explains, in plain language, that Input.Observer acts on your computer for you — sending keys and clicks, closing windows, running programs — and that you are responsible for what you set it up to do. Choose I accept to continue, or Decline, which closes Input.Observer.

You accept once for each Windows user account. If the terms change in a later version, you are asked again. The agreement is in English. You can read it at any time on the About page under License terms.

Third-party notices​

Input.Observer includes open-source components. Their licenses and copyright notices are on the About page (View third-party notices…) and in the file ThirdPartyNotices.txt beside the Input.Observer program.

The welcome​

Show welcome (also on the ⋯ menu in the title bar) opens the welcome you saw on the first start. It covers drawing a gesture, finding the tray icon, the hotkey that stops a runaway action, and Safe Mode. Get started closes it and opens the Actions page.

The choice of a starter set — keeping the ready-made gestures and actions or starting from scratch — appears only on the very first start, while the starter set is still in place. See First run.