Dedicated to the honor of the Flag of the United States.

When should the flag be flown at home? Where should the flag be placed on stage in relation to a speaker? Should the flag be draped over a podium? How was the US Flag of WWII different from today's flag? What are the words to the second verse of the Star Spangled Banner? What are the only two states to be admitted to the union (thus adding stars to the flag) on the exact same day? What RGB color values should be used when drawing the flag on a computer screen? How should the flag be folded for display?

KnowledgeBook: US Flag answers all these questions and many more.

What’s New

Version 2.0.1

- Correct typos in Pledge of Allegiance

Ratings and Reviews

4.7 out of 5
38 Ratings
38 Ratings
Dkb in GA ,

Great Info; Especially Reminders!

I fly my flag always (lighted at night)! I always forget which are half-mast days, and can never find my notes.
The alarm reminders are a nice touch too. Thanks for this App!
I almost forgot to lower my flag to half-mast for the 9/11 anniversary. The reminder kept me straight. Thanks for this App!

Andyroofs ,

Love and Pride

I am 51 years old and I never really paid any attention to all of this wonderful information. Now here it is right at my fingertips with a feeling of history and nostalgia. Super easy to use too.
Thanks for all you do. This is terrific and very wonderful. 5-stars all the way!
Andy the Roofer

appleproha ,

Good app, but song links all broken.

The app is quite informative. However the song and anthem audio links are all broken. they've never worked and no one has ever fixed it. the app hasn't been updated for a long time.


Portable Knowledge, LLC
36.5 MB
Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2010-2012 Portable Knowledge, LLC


  • Family Sharing

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

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