Clue Tracker is the ultimate letterboxing app. Quickly and easily find Atlas Quest and LbNA boxes, organize clues, view maps, record finds, and more.

• Find nearby letterboxes based on your current location.
• Search for boxes by location, box name, planter, box ID, and much more.
• View detailed letterbox information including last found date, series details, and comments.
• Show letterboxes on a map and get directions to a box.
• Built-in compass display (device support required).
• Quickly and easily record finds.
• Save clues and other letterbox information for offline use.
• Organize saved letterboxes into your own lists and reorder boxes to create custom itineraries.
• Share a list of saved letterboxes with another Clue Tracker user (or transfer the list to another iOS device).
• Sort and filter search results and lists of saved letterboxes.
• Change the location of a saved letterbox.
• Add Word-Of-Mouth (WOM) letterboxes.
• Add your own photos to saved boxes and WOM boxes.
• Add personal notes.

Are you new to Letterboxing? Learn more about this intriguing activity at or

Pearl Crescent and Clue Tracker are not affiliated with Atlas Quest or LbNA.

What’s New

Version 4.0.8

Improve compatibility with iOS 14, including use of the calendar-style date picker in record find.

Ratings and Reviews

4.7 out of 5
344 Ratings

344 Ratings

Flwr53 ,

Great app

I’ve been using this letterboxing app for at least 4 years and have never had any problems. It’s so convenient when traveling to pull up a quick search for nearby boxes. I also like the save feature so you can download the clues for later viewing in an area where you know there won’t be cell service. I like being able to log the find from the field.

Glitch?? ,

Love it!

Helpful to have the clues at hand, all together, and sorted however you want them.

Resar2003 ,

Good app

I like this app for quick nearby searches but including a search by name option would be nice, too!

App Privacy

The developer, Pearl Crescent, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


Pearl Crescent LLC
10.2 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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