Victor Wong is the CEO and co-founder of PaperG, a display advertising technology company that simplifies ad creation and targeting. The New York Times called PaperG’s technology “an ad engine to put ‘Mad Men’ out of business.”

Victor has served as co-chairman of the Interactive Advertising Bureau’s (IAB) Local Committee and has been a guest lecturer at events hosted by NYU, NAA and BIA Kelsey. He has contributed to Forbes, PaidContent and Techcrunch. Victor graduated from Yale University with a degree in economics and is a Yale Entrepreneurial Institute Fellow. He lives in San Francisco, where he spends his free time writing for his blog and cooking.

What smartphone do you use?

An iPhone 5. It was the last phone Steve Jobs worked on and represents the best of his work.

What apps do you use most often and why?

I use Tripit because I travel a lot. It keeps all my travel details in one place, and that’s pretty important when you are flying every week and aren’t always sure what city you’re in.

The Quora app is a good, productive time kill. Quora is a Q&A website where anyone can ask questions and experts or people knowledgeable can answer the questions. The quality of response gets voted up or down so you can see the best answer for a given question. I use it as a supplement to Wikipedia for just learning fun random stuff about the world that you wouldn’t necessarily get the info from a simple search in an encyclopedia. For example, a great question and answer they have is “What are some great examples of witty exchanges?”

The Yahoo Weather app is a beautiful weather app. It’s clearly well designed and specific to mobile. The back cover image is of the local area, which is always nice when you’re traveling to get a feel for your surroundings.

I use Uber (car service app) to get around.

What’s on your screensaver?

It’s a picture of Stumptown Coffee Roasters, my favorite coffee place. It reminds me of the wonders of doing something simple really well. Stumptown is in many states and started in Oregon, but I frequent their Seattle and New York City locations most often. [There are] none in San Francisco, unfortunately.

What’s On Your Phone? is an occasional blog series from RunMobile that asks business leaders, celebrities and plain ol’ folks to tell us about their smartphones and apps.