A couple of years ago, while I was visiting New York, my cousin introduced me to an app on my phone that I hadn’t used before—Average Camera Pro. I tested it out at Grand Central Station. To my delight, the resulting image, created by multiple photos in one frame, beautifully conveyed the feeling of the commuters rushing through the station in all directions.
I liked this photo so much that it was one that I chose to display at ArtExpo New York this month. I was also happy that It seemed to resonate with my Facebook viewers who gave it a lot of likes. 🙂

I need to get to know the app better and when are the best occasions to use it. . I was very happy with this result.
You might try Spectre as well on your cell phone, gives 3-30 second exposures, perfect for settings like this.
Love that app, and love that setting! Beautiful complementary colors, GST is also pretty interesting in B&W.
Brilliant shot!