Yup. One was CPC and the other was DTS. Both were the original DUAT contractors. I never liked the CPC site or later, their app, which had some "bloat". The DTS app, OTOH, was extremely "slim" and did exactly what you wanted it to do...brief, file and save both for off-line viewing. It had a rudimentary flight planner, which was good enough for a WAG.
As far as I can tell, Leidos doesn't have an App, just a mobile site.