Buy

Get a Quote

What can we do for you?

"John is a knowledgeable, experienced developer. He was great at communicating all during the process. And the end result what just what we wanted! Thanks for a job well done!"
-- Steven F.

"I'm so pleased on how far [the] Market [Theme] has come since we've been working together. Thanks for your continued help!"
-- Eli, the Market Theme

"Thank you so much for your quick turnaround!"
-- Scott, Bernadot Studios

"I've got to say I've enjoyed working with you John...Thanks again for all your help. I really am delighted with it!"
-- Robin S.

What is MammothApps?

We are a WordPress studio specializing in high-end, custom plugins and feature rich web applications. View our services

MammothApps Newsletter

Get MammothTips and major announcements in your inbox!


More Info

Recent Blog Posts

All About MammothApps

MammothApps is a WordPress development studio owned and operated by John Kolbert. Based out of Minneapolis, MN, MammothApps’ typical clients are looking for medium to large scale custom plugins or websites that require advanced functionality (such as e-commerce, or social networking). However, MammothApps offers a wide range of WordPress-related services. MammothApps is a one-man shop, with John personally completing the client interaction, planning, coding, delivery, and billing.

Who is John Kolbert?

John has been a freelance WordPress developer for nearly four years. Prior to opening MammothApps he operated a WordPress consulting business (John Kolbert WordPress Consulting). John is self-taught in HTML, JavaScript, PHP, and mySQL. John has been married for five years and has a three-year old daughter and another one on the way. In addition to running MammothApps, he is a third year dental student. You can read more at his personal blog or follow him on Twitter.