hi u/ggat Intuiface is an interactive digital signage platform that allows you to deploy both online and offline. With this feauture you can
save your content made with Intuiface locally and run them offline without absolutely no WIFI. Of course, it's a choice like I said before. you can choose to run it online too in which case you gain the ability to access external information in real time.
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here the link: https://www.intuiface.com/features/deploy-manage
I've found a couple of companies who do perform these types of things. For the sake of the next person performing this search:
I think Intuiface fit into all of your criteria. It's much higher quality than what you are using though in terms of the complexity and flexibility of content you can present and the software itself is probably way more sophisticated. It's the best out there and yet has very reasonable pricing options.
Try Intuiface composer/player. It's interactive digital signage platform that allows to you edit, control the content pretty much live time and display from wherever in the world you are. You can take advantage of Analytics feature that allows you to collect all kinds of information about your display project like how many times you played and where, and if it's shown on touch screen how many time of what image people clicked on.
the link is here: https://www.intuiface.com/
Try Intuiface. Intuiface is made for any organizations to create and deliver contents for any scenarios. You can display almost unlimited types of content from videos, slideshows, pictures, web pages, live social media feed, weather forecast, map, live webcam, etc. You can also connect the content to pretty much any interactive devices like object recognition, voice recognition, motion sensor, mobile devices. You can design the content the way you like or use their templates and drag and drop design accelerators. Here's the link www.intuiface.com