flagSter is a search engine for flags. With the largest catalogue of flags in the App Store it allows you to search for and find a flag based on the colours and features (stripes, stars ,etc) you can see. Once located it explains the meaning of the flag and its symbols.

Want to know why the Tibetan flag has a border on only three sides? Or why the Thai flag is red, white and blue, then flagSter will tell you. Wonder how many US states include a Union Jack, or how many countries have stars on their national flag, then flagSter has the answer.

flagSter's extensive catalogue is available via browse as well as search. It includes all countries, states, territories, maritime signals and major international organisations (from the UN to OPEC).

flagSter is the application Dr Sheldon Cooper would have promoted on his vexillological podcast if (a) he was real and (b) he'd kept at it for more than one episode.