For Luci on iOs:
This is easy, since Apple remembers your purchased apps in your iTunes account. So use your iTunes account on the new iOS device and you can download LUCI on the App Store for free.
For other platforms like Windows, Mac, Android or linux:
If you want to install your LUCI on a different PC or phone you can ask us to reset your license, so you can re-activate LUCI on your new device. Keep in mind that you have to set your configuration manually.
Send us a ticket with your activation code and we will reset the license as soon as possible.