The most complete mobile application that contains descriptions and prices of the Imperial Russian Coins.
You can easily find the necessary coin as well as:
rarity of the coin (according to Bitkin, Ilyin, Semenov)
estimation by actual catalogue prices (for VF and XF grades)
visual information about varieties of the coin
sales on auctions
create your own note (comment)
Also there are simple navigation and quick search for all coins in the Catalog.
The app is designed for numismatists, dealers, treasure hunters and history buffs.