Editor's pick

Best National Parks passport stamp apps, 2026

Offline and no account matter more for this hobby than almost any other, because the parks with the best stamps are usually the ones with no cell signal at the visitor center. The physical Passport To Your National Parks book, sold by the nonprofit America's National Parks, is the heart of the hobby and nothing here replaces it: collectors love the ink, the dates and the smudges. But a paper book can be lost at a stamping station, pages run out, and there is no central record of what you collected. The official NPS App is the best free guide to maps, alerts and park information, and it is not built as a collection log. The two apps below are. Stampr is a digital passport for the 63 National Parks: log a visit in three taps, watch an original stamp press into your passport, and track your progress toward all 63 on a map and calendar. Inkpass covers the whole passport system, all 433 park units in the nine official passport regions, and logs each individual cancellation stamp with station, date, ink color and a photo, as a backup for the blue book.

How to choose a National Parks passport app

Park collectors fall into two camps, and the right app depends on which one you are in:

  1. 1. The 63 parks, or every park unit?

    Many visitors are working toward the 63 National Parks. Passport collectors chase stamps at monuments, battlefields, seashores and historic sites too, over 400 units in all. Pick an app whose list matches your goal.

  2. 2. A visit log, or a stamp log?

    Counting the parks you visited is one job. Recording each cancellation stamp, with its station, date and ink color, is another. Stamp collectors need the second, because one park can have several stamps.

  3. 3. Does it work at the visitor center?

    Many stamping stations have no signal. An app that needs a connection to log a visit fails exactly where you use it. Look for bundled park data.

  4. 4. Is your record backed up?

    A paper book is irreplaceable. Photographing each page or stamp into an app gives you a record if the book is lost or water-damaged.

  1. Stampr icon
    Live on the App Store Travel

    Stampr

    Your National Parks. Stamped.

    Does:
    national parks passport
    Price:
    Free, no subscription
    Offline:
    Yes
    Account:
    None

    Read the full app page →

     Try Stampr free in your browser →
  2. Inkpass icon
    TestFlight beta Travel

    Inkpass

    Every stamp. Every park unit.

    Does:
    national park passport stamp catalog
    Price:
    Free, no subscription
    Offline:
    Yes
    Account:
    None

    Read the full app page →

     Try Inkpass free in your browser →

FAQ

Is there an app for National Parks passport stamps? ▾

Yes. Stampr is a free digital passport for the 63 National Parks, available on the App Store. Inkpass logs every physical cancellation stamp you collect across all 433 NPS units.

Do they work in parks with no cell service? ▾

Yes. Both bundle their park data on the phone, so browsing parks and logging a stamp works with no signal. Nothing needs to upload.

Do they replace the paper passport book? ▾

No, and they are not trying to. Stampr is its own digital collection, and Inkpass is a catalog and photo backup of the stamps in your physical book. Neither app is affiliated with the National Park Service or America's National Parks.

Are they free? ▾

Yes. Stampr has no subscription, ads or in-app purchases. Inkpass is free with no account. Both also have a free browser version.

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