# Sample Apps

This section introduces various sample applications which are published to external sites with complete source code and explanation.

* [Twitter Single Sign-on App](https://en.docs.monaca.io/sampleapp/samples/twitter_sso)
* [Facebook Single Sign-on App](https://en.docs.monaca.io/sampleapp/samples/facebook_sso)
* [Flickr Sample](https://en.docs.monaca.io/sampleapp/samples/flickr)
* [TODO App](https://en.docs.monaca.io/sampleapp/samples/todo)
* [BirthYear App](https://en.docs.monaca.io/sampleapp/samples/age-calc)
* [AdMob](https://en.docs.monaca.io/sampleapp/samples/admob)
* [Break the Bricks](https://en.docs.monaca.io/sampleapp/samples/break_the_bricks)
* [Train Catalog App](https://en.docs.monaca.io/sampleapp/samples/shinkansen)
* [Omikuji Fortune Telling App](https://en.docs.monaca.io/sampleapp/samples/omikuji)
* [Clock App](https://en.docs.monaca.io/sampleapp/samples/clock)
* [Memo Application](https://en.docs.monaca.io/sampleapp/samples/memo_application)
* [RSS Reader App](https://en.docs.monaca.io/sampleapp/samples/sample_rss_reader)
* [Hello World App](https://en.docs.monaca.io/sampleapp/samples/hello_world)