Get all the information you need for your next national park adventure with Chimani. Details on all 407 national parks in the U.S. and comprehensive guides to 61 of the most popular national.

Download the guides for offline use, including GPS-enabled topographic maps. Explore the park, record all your visits and earn special virtual badges and points. Complete details on all activities including hiking trails. Shuttle bus schedules and events.

With all the information you need - and regular updates - Chimani is your must-have travel companion for your next national park trip.

This version of Chimani includes the following 61 national parks, with more to come soon: Acadia National Park, American Samoa National Park, Arches National Park, Big Bend National Park, Biscayne National Park, Black Canyon National Park, Bryce Canyon National Park, Cape Cod National Seashore, Channel Islands National Park, Congaree National Park, Crater Lake National Park, Cuyahoga Valley National Park, Death Valley National Park, Denali National Park, Dry Tortugas National Park, Everglades National Park, Gates Of The Arctic National Park, Glacier National Park, Grand Canyon National Park, Glacier Bay National Park, Grand Teton National Park, Great Basin National Park, Great Sand Dunes National Park, Great Smoky Mountains National Park, Guadalupe Mountains National Park, Haleakala National Park, Hawaii Volcanoes National Park, Hot Springs National Park, Isle Royale National Park, Joshua Tree National Park, Katmai National Park, Kenji Fjords National Park, Kobuk Valley National Park, Lake Clark National Park, Lassen Volcanic National Park, Mammoth Cave National Park, Mesa Verde National Park, Mount Rainier National Park, Mount Rushmore National Memorial, North Cascades National Park, Olympic National Park, Petrified Forest National Park, Pinnacles National Park, Redwood National Park, Rocky Mountain National Park, Saguaro National Park, Sequoia-Kings National Park, Shenandoah National Park, Theodore Roosevelt National Park, Virgin Islands National Park, Voyageurs National Park, Wind Cave National Park, Wrangell-St Elias National Park, Yellowstone National Park, Yosemite National Park, Zion National Park.

What's New

Version 5.0.5

Great news! You can now download all 61 detailed Chimani guides within this app. This update includes guides for the following national parks:

American Samoa
Big Bend
Black Canyon
Bryce Canyon
Cape Cod National Seashore
Channel Island
Crater Lake
Cuyahoga Valley
Death Valley
Dry Tortugas
Gates Of The Arctic
Grand Canyon
Glacier Bay
Grand Teton
Great Basin
Great Sand Dunes
Great Smoky Mountains
Guadalupe Mountains
Hawaii Volcanoes
Hot Springs
Isle Royale
Joshua Tree
Kenji Fjords
Kobuk Valley
Lake Clark
Lassen Volcanic
Mammoth Cave
Mesa Verde
Mount Rainier
Mount Rushmore National Memorial
North Cascades
Petrified Forest
Rocky Mountain
Theodore Roosevelt
Virgin Islands
Wind Cave
Wrangell-St Elias

This update also includes lots of bug fixes and performance improvements.

If you have any questions or comments, please contact us at:

Ratings and Reviews

4.4 out of 5

13 Ratings

13 Ratings

New Feature Is Data Usage Intensive


It’s great that this one App replaces the multiple Park Apps. One stop shop ... I like it. Yet this new feature is data usage intensive. It downloads each parks info upon request ... then promptly forgets it as it has to download the basic Apps info & unpack it once again before allowing me to choose another Park to review.

In fact, if I go back to the same park, it doesn’t realize the park’s info hasn’t been updated since the last download so it downloads and unpacks the Park info again.

Bottom line is that I cannot download all the parks I choose to visit & unpack them all once for a multiple-Park road trip.

Developer Response

Thank you for your review. A clarification - the initial download of the guides does require a data transfer however from that point forward the app only checks to see if there is a new version guides, otherwise it loads the already downloaded version.

Your feedback tells us that there is confusion with continuing to use the “download of park guide complete ” upon each launch and will look to clarify it so people realize it’s not constantly downloading data.

Fun app, but learn app before leaving home

Outside Engineer

I really enjoyed learning all the information. Fun to read ahead and while there. However, I didn't find a couple important option until I returned home after traveling. Go to the map area and look at the options in the ... symbol at the top right of the map section. Note that you can download the map ahead of time and also turn on the gps. I had trouble because I didn't know to do either so I used a lot of data and couldn't use the map if I started outside a cell service area (and much of Yellowstone doesn't have service.) Also, I went through a lot of data and battery. Finally, even though I gave the app permission when I first downloaded/setup the app, it never verified my badge even though I checked in from the park locations--I now suspect I needed to also turn on the gps through the app, but this was not immediately obvious when I was using the app. Still, this app provides great facts, data, and interesting points that are fun to discover along the way. I recommend downloading it, but play and learn the settings and features before you head out on your adventure.

Worse and worse


The fact that they don't care about their users enough that they will actually wipe out all of their data on an app rewrite, with no way to recover it should be enough for the one star review. (I had been recording my visits here for years—over 100 recorded visits just gone —poof—after an update). Don't rely on this app to keep track. But wait, there's more. Incredibly buggy, has been for years. I'm still a "trekker", even w/ over 100 visits. I've only ever been to two parks where the "verified" visit works. Map is constantly freezing or randomly panning back to my geolocation when I'm looking for something else. Now it will barely zoom out at all. Pushing the "add visit" button just doesn't work 80% of the time. (I end up using a furious fast-tap just to get touch to trigger). But back to how they hate their users: Now there's a modal window imploring you to sign up for perks EVERY TIME you start the app (if you don't sign up). And worst of all, they've started adding pins for paid businesses to the parks map! I'm outta here for good.

Developer Response

We do care about our users. There was a problem with transferring profiles with a lot of checkins. We are working on a fix and will have it available as soon as possible.


Chimani, Inc.
148 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2010-2018 Chimani, Inc.


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    With Family Sharing set up, up to six family members can use this app.

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