Stamps App United States collects all US labels of all history.
It is the first virtual catalog to take your collection on your mobile or tablet device.
all data of the stamps sold in the US from 1850 to today are included.
The application is completely autonomous. You do not need Internet connection to be used.

The application allows you to keep track of the stamps you have, you can count the stamps you have and its value.
Look for years (1, 5, 10, 25, 50, 75).
You can search by topic.
You can search by series.
You can search by free text.

You can search by different filters:
Color, broadcast, format, print, Score, Subject, Series, Year. Currency, Weight ...
Application multilanguage (Spanish, English).
It includes real-time news of what people talk about philately and stamps.
App store with stamps of the new countries.
Search on the map points of interest Philatelic and Stamp near you (Shops, sharing sites, museums).
Ability to send your friends the seals found through your messaging programs.
Whithout ads.