From version 16 onward please note the following:
According to our license agreement a purchased license of Password Depot may be installed for your personal use on an unlimited number of devices.
However, it is not permitted to pass on the program or the personal license to third parties. One single license may not be used by more than one person at the same time.
This only applies for the Windows edition. At the moment, all other editions (Android, iOS, macOS) are free of charge and hence can be installed as many times as you wish to.