Cris Slotoroff
Philadelphia. Music. Public Transit. Public Education. Soccer. Surfing. The Occasional Long Essay.

Hi, I'm Cris.

I am a longtime educator, a K12 education technology researcher, a musician in The Deafening Colors, a lifelong surfer, and a rabid soccer fan. I am also a forward-deployed software engineer.

Lately, I've been building apps to make public transit legible: easier to see, easier to trust, easier to use. My first one, Philly Trolleys, is in the App Store now. My second is in review with Apple.

Cris Slotoroff in a dark jacket, standing in front of a stone wall
A 1935 Shore Fast Line timetable map showing the route between Atlantic City and Ocean City

New Essay · 24 min read

What’s Up With You and Trolleys?

A hundred years ago, an electric interurban ran every 30 minutes through the three-stoplight town where I grew up. Nobody told me. Here’s how what’s left of “The Shore Fast Line” inspired me to start connecting rides with transit apps.

Read the Essay

The Apps

Check out what I've made so far.

Philly Trolleys app icon: a green and cream PCC trolley

Philly Trolleys

On the App Store since August 19, 2026. $4.99, pay once.

Live positions for the vintage PCC cars on Girard Avenue, alerts when they roll out or near your stop, and a widget for your home and lock screen.

Download on the App Store About the App

NJ RIDES app icon: an outline of New Jersey with transit line nodes

NJ RIDES

Submitted to Apple, in review. Free web version available now.

Every scheduled ride in New Jersey on one map, from free community shuttles to NJ Transit, PATCO, PATH, and Amtrak, with a planner that connects them.

Try the Free Web Version About the App

Say Hello

Questions? Feedback? Got a project for me? Get in touch.

Find Me on LinkedIn