AppMakr, lets you easily create apps via a web-editor, but it requires you to publish it via Apple's App Store, which means you have to go through the hassle of getting and paying for an iOS developer account. App Press is similar in that regard and also is a bit more complicated when it comes to designing with more tool options.
And that's really where Yapp is focused – on the tech novice looking to create event apps.
"There are a lot of wedding-related applications there are a lot of apps for conferences for classrooms and sports teams. Then there are some unusual events too, like a trip to Everest or sorority events," Seidman said.
And as apps begin to replace websites or at least complement them, for some, Yapps are starting to replace personal or event sites.
"After researching many options, we thought it seemed more innovative and easier to set up than a website," Krygowski said.
Yapp is free to download and use, though you can pay a fee for a concierge service, where Yapp experts will help customize the app for you. You can download the free app from the Apple App Store and Google Play today -- just don't get caught looking through those other 700,000 plus apps available in the store.