Yes, it is possible to use your Nurvv Run in a number of different trainers. The shoes, however, need to be in a similar size and have a set of removable insoles inside them. This will ensure that you will be able to move both of your Nurvv Run insoles and trackers from one pair of shoes to the other and obtain accurate running metrics.
However, to minimize wear and tear associated with the installation and removal of the insoles and to make it quicker and easier for you to start your runs, it is recommended that you have a set of NURVV Run insoles for each pair of shoes you want to use. The trackers can be used with any set of insoles and there's no additional setup required to switch trackers between insoles. You can purchase additional NURVV Run insoles at nurvv.com.