There is one primary criterion for a Caltrain app: it has to tell you the correct train times. This app fails that test.
Today CaltrainMe notified me that the train schedule had changed, and that I needed to update the app. So I did. But the "updated" train times are all incorrect, as I and another sorry fellow at the train stop today learned (he used the same app and had the same situation). Theres no point in using a Caltrain app if it wont tell you the correct times.
Rider037564739 about CaltrainMe