Trial & Licensing

Free trial

Every new installation gets a 14-day full-featured free trial — no credit card required.

To start your trial:

1. Open the app for the first time.
2. Click Start Free Trial in the license dialog.
3. The trial begins immediately. A countdown badge in the sidebar shows how many days remain.

The trial is tied to your machine. Each user is entitled to one trial period.

Trial restrictions

During the trial you have access to every feature:

• PLC connection, dashboard, diagnostic buffer, data browser, alarms
• AI Agent with any supported Claude model
• TIA Portal and Ladder Migration integrations

When the trial expires, premium features are gated behind a Pro license. The PLC connection and basic dashboard remain accessible.

Pro license

A Pro license unlocks all features without time limit.

Pricing:

• Monthly: $29 / month
• Annual: $249 / year (saves ~28% vs monthly)

Each license is valid for one machine at a time. If you need to move your license to a different PC, contact s7plcbuddy+contact@gmail.com.

Purchasing a Pro license

Purchasing happens entirely inside the app — no separate website needed.

1. Open the license dialog (click the trial badge in the sidebar, or go to Settings → System → License → Upgrade).
2. Choose Monthly or Annual.
3. Click Buy Pro License. A Paddle checkout page opens in your browser.
4. Complete payment in the browser. The app detects the completed purchase automatically and activates your license — no key to copy or paste.

Payment is processed by Paddle, our Merchant of Record. Paddle handles billing, VAT/tax, and receipts. S7 PLC Buddy LLC never sees or stores your payment details.

Reinstalling or moving to a new machine

Your license is tied to your machine ID, not a license key. If you reinstall the app on the same machine, your license is recovered automatically:

1. Open the license dialog.
2. Click Already purchased? Retrieve activation.

The app contacts the licensing server, matches your machine ID to your subscription, and restores Pro access. No email or key required.

To move to a different machine, contact s7plcbuddy+contact@gmail.com with your Machine ID (see below) and we’ll transfer the license.

Finding your Machine ID

If you contact support about a license issue, you may be asked for your Machine ID. Find it at Settings → System → About → Machine ID (click the copy icon to copy it to the clipboard).

Cancelling

Cancel your subscription at any time through your Paddle billing portal — the link is in your purchase confirmation email. Access continues until the end of your current billing period.