Users are not generally aware of this, whereas they may have more confidence in the possibility of an app working offline.

We want users to peruse the knowledge bank offline due to the cost of data and the potential that a detained or soon-to-be-detained immigrant may not have an internet connection.

Right, which is why I mentioned that it's entirely possible to make a website which can be used offline. You might want to have a look at Service Workers. https://developers.google.com/web/fundamentals/getting-start...

Great suggestion. We'll check it out.

That makes sense to me! Thanks for the response.