You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
If you have Windows 10 you can format drives larger than 32GB as FAT32 by hitting Start and searching for Powershell(admin) and running the following command: "format /FS:FAT32 I:" where I: is the drive letter of your USB drive.