The AppMan!   Expert Mobile App Development & Marketing

  • Brands Jeremy Callahan works with
  • Shoe Swipe App by Jeremy Callahan
  • Tracking Football App by Jeremy Callahan
  • Class Hoppers App by Jeremy Callahan
  • Flip Shop by Jeremy Callahan
  • Ball Park Waiter by Jeremy Callahan
  • hOOcalls App by Jeremy Callahan
  • Shoe Swipe Website by Jeremy Callahan
  • School Wise Press by Jeremy Callahan
  • The Fantasy Box by Jeremy Callahan
  • Responsive Web Design by Jeremy Callahan
  • Prosper.com by Jeremy Callahan
  • Mark Logic User Conference by Jeremy Callahan
  • Race Sim Central by Jeremy Callahan
  • AYUSA by Jeremy Callahan
  • Autodesk University by Jeremy Callahan
Brands Jeremy Callahan works with

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Callahan & Associates, Inc. is a mobile and web development firm founded in 2014. Headquartered in San Francisco, the company specializes in developing software solutions that meet business and consumer needs on phones, tablets and desktops computers. The firm includes a design team, front and back-end developers, database engineers and a QA team. We work with domestic and international clients and are also developing several in-house mobile applications.

Callahan & Associates is led by Jeremy Callahan who began programming websites when he founded Course Cam during the Dot-com era. Over the past 19 years working on globally recognized brands and startups Jeremy has developed friendships with designers, developers and QA engineers that he now leverages to architect and develop software solutions.