I installed the xampp limesurvey package on my computer with the hopes of being able to create and gather responses on surveys on a local network. I don't want to use a web server with a hosting company because of the security issues with their data storage. Is it possible for me to activate a survey on my localhost and have other devices take the survey?

If everything runs within the same network and your computer is reachable from this network and has a fixed IP: yes.

However, depending on the configuration of your machine and the network, it might not be possible. You just need to find out what your IP is (the local one, speak to your network administrator or try something like this: lifehacker.com/5833108/how-to-find-your-...-external-ip-address ).

Your IP must be fixed and ideally your machine should be connected via LAN, not WLAN. But I think your network/system administrator should be able to help you there. This has little to do with Limesurvey itself, but rather with your network and the configuration of your machine (e.g. firewall, etc).