VoicePad’s account page lets you review active devices and free a slot when replacing a phone or computer. Your device allowance depends on your license.
The current website lists two devices for an individual mobile or desktop option, and four for the bundle. Founding Member access covers up to four active devices across Windows, Android, iOS and macOS. Check your purchase or app license screen for the entitlement that applies to you.
Deactivation removes Pro access from that device. The documented behavior is that it does not delete its dictation history.
Activate or restore Pro on the new device using your purchase method. If the app reports a device limit, remove an old device first and check that your license covers the new platform.
More platform-specific guidance: VoicePad Help Center.