BAR HARBOR – The next time you visit Acadia National Park, be sure to take your iPhone.

A school technology director from Yarmouth has developed an application for the iPhone that offers a guided tour of the park right in the palm of your hand.

Kerry Gallivan, 36, president and founder of Chimani LLC, said the idea came from an experience he had while hiking in the park.

“I was on Gorham Mountain and was using my iPhone,” he said. “I wanted more information about the mountain and the trail I was on. I couldn’t find it, and I figured there were other people in the same situation.”

Gallivan describes his “app” as an all-in-one travel guide to the park. Although it runs on the smart phone platform, it is designed to work without any cell phone connection. It has GPS functionality built into it, which provides interactive, custom-made maps of the park and a 34-minute audio tour of the Park Loop Road.

With the tap of an icon, a voice will describe the view to the user.

In addition to the on-the-road information, the application includes interactive information and maps of Acadia’s hiking trails and the carriage road system.

The application was based on a guide the park provides for tour bus drivers in Acadia. “We used that as a basis, but it’s all original information,” Gallivan said.

Park officials were not aware of Gallivan’s new guided tour application, although they know the technology exists.

Assistant Superintendent Len Bobinchok said park officials don’t oppose such technology, but would like to have had input into the content, to ensure that the information is accurate.

The park produces its own interpretive information, including an audio guided tour.

In addition to information about the park, Gallivan said, his application includes 365 days of sunrise and sunset information for the park, the schedule for the Island Explorer bus and information about the tides, including the best times to visit Thunder Hole in the park.

It also provides information from the park about ranger-led events throughout the summer. Gallivan said he manually updates that schedule regularly.

“I love emerging technology,” said Gallivan, a technology director in School Administrative District 75, based in Topsham. “I love the outdoors, and I love Acadia.”

The application, which costs $9.99, is available for iPhones only through the Apple Store.

Gallivan started his company, Chimani LLC, in January to market the mobile application.

He began with Acadia National Park because it’s the national park he knows best. He said he plans to develop similar applications for all the major national parks.

His company’s website is www.chimani.com.