I put together an app the other day with the web app builder and when I send the URL to someone it requires them to log on. The content, web map, and app are all shared publically. Also, surprisingly if I create the app using an ESRI template instead of the web app builder I am able to successfully share that app with anyone without requiring login. Is there a step I am missing with the Web App builder that will allow the finished app to be publically viewable.
Thanks
Mark
I had the same question the other day. Try replacing the first part of the url to your app (which starts with your organization account) with "www.arcgis.com"
So for us, I changed: http://lakecoca.maps.arcgis.com/ to http://www.arcgis.com/
I've run across one issue with that: The disclaimer splash I created does not carry over. It's visible to those logging in to the organization version, but not to the public version (which is, frankly, the exact opposite of what I need).
Perhaps this might help: Web AppBuilder applications now asking for users to sign in?
I think it relates to the organization security settings. You must allow for anonymous access to your organizations website. Try this hyperlink, it may explain.....Share items—ArcGIS Online Help | ArcGIS
Could you use the latest version to have a try?