Not always the information about the service in the stations its right. This is not the first time it happens to me and have to loose lot of time because of it. Right now, you can see the app says you can take the E train in 42st-Port Authority going uptown when the service is cancel at this station the weekends and its being in this way for two weeks already. So, pay for this when you can go to the MTA website and check it for free? Btw, I sent long time ago an e-mail about this problem to support and nobody answered to me.
ovabsas about iTrans NYC Subway, v8.1.1