If for some reason MindNode is still in Free Editor after your purchase or reinstall, please follow these steps: 

I. Restore Purchase

macOS
1. Go to the MindNode main menu on top of your screen
2. Click on MindNode
3. Locate the entry Restore Purchase… and click it

iOS
1. Open MindNode
2. Tap on Settings (indicated with the little gear icon)
3. Locate the entry Restore Purchase… and tap on it

II. Ensure iCloud is enabled

The subscription information for MindNode Plus synchronizes via iCloud. Therefore, if you subscribed and want to use MindNode on multiple devices associated with your Apple ID, you have to enable iCloud.

macOS
1. Open the System Settings app
2. Click on the Apple ID icon in the upper-left corner (the one with your name and image)
3. Click on iCloud
4. Click the "Show More Apps…" button
5. Scroll the list until you find MindNode and make sure the toggle is switched on

iOS
1. Open the Settings app
2. Tap on the Account banner at the top
3. Tap on iCloud
4. Tap "Show All"
5. Scroll the list until you find MindNode and make sure the toggle is switched on

III. Sign up for MindNode ID

MindNode ID is our new optional account system that enhances our MindNode Plus subscription. Previously, to share our subscription between your devices, you needed an iCloud account. Using MindNode ID, you can now access your subscription from devices that do not use iCloud (e.g., devices owned by a company or personal devices using different Apple IDs). Learn more here.