In your phones App Store (Google Play for Android, Apple Store for Apple), you can search for and download MiniVAN Touch. The links for the options to download MiniVAN Touch are:
Google Play (Android devices) - https://play.google.com/store/apps/details?id=com.voteractivationnetwork.minivan&hl=en_US
Apple Store (iPhones/iPads) - https://itunes.apple.com/us/app/minivan-touch/id352087547?mt=8
Amazon Fire Tablets - This is a little more involved since you can’t easily go to the Google Play Store or the App Store like you can with Android and Apple OS - https://apkpure.com/minivan/com.voteractivationnetwork.minivan
What personal smartphones/tablets are good to use, in general? What tablets/cell phones should my campaign/county party purchase for MiniVAN if we don’t want to use only personal smartphones?
Do not use Huawei, ZTE smartphones/tablets. Most recently, MIT cut ties with Huawei and ZTE, joining federal agencies, the DNC and other academic institutions in their decision to stop using the Chinese-made equipment due to Chinese Government/Intelligence security concerns. There are no other smartphone/tablet manufacturers with known security concerns.
VAN will be dropping support for anything less than Android 5 and support for iOS 8 (smartphone/tablet operating systems) at some point in the future. If you want this tablet to last a few cycles we recommend buying current generation devices with current iOS and Android versions or bare minimum Android 5 / iOS 8.