A Doodle Fly - Fly to the Moon is the most popularly downloaded free iPhone application for the week of March 15.

The top free application by country* for the week, by number of downloads, recorded on March 15:

1. US
A Doodle Fly - Fly to the Moon (games)

A Doodle Fly is a two-fold flying game. Players create their own handmade spaceship by either drawing a picture or importing a photo into the game. Instead of blasting off to the moon in a sleek spacecraft, players attempt to reach the moon by harnessing the flying power of rocket boosters, propeller beanies, springboards and clouds. Players have to reach a certain height or cash target to unlock the next level. Unique graphics and customizable characters make this game even more addictive.

2. UK
Creme Egg (entertainment)

Creme Egg is a promotional application for Cadbury's Creme Egg chocolates. The application uses Augmented reality to place virtual eggs around the UK and Ireland for people to find. When (3GS-equipped) players visit one of many specified locations they will discover a Creme Egg hiding somewhere around the landmark. The second part of the app lets consumers "Scramble the Egg." The idea is to explode the on-screen Creme Egg and then to smudge its gooey contents all over your screen.

3. France
Enigmous Lite (games)

Enigmous Lite is a game that tests your brain power and makes you think. It illustrates 26 classic enigmas with simple graphics and asks you to solve them with your finger and logical thinking skills. Players will have to figure out how to get three wolves and three sheep to cross a river without any lethal attacks and how to measure out four liters of water when you only have 3L and 5L containers.

4. Canada
GodFinger (games)

GodFinger gives your finger the power to play god to this miniature world of tiny characters. Players can choose to be a kind and benevolent ruler or wreck havoc on the tiny iPhone world with their powerful finger. GodFinger is like a futuristic version of SimCity. Players can advance their civilizations by putting their planet's inhabitants to work and controlling the natural elements to their benefit or they can use a bolt of lightning to destroy all that lies beneath them with one foul strike of their digit.

5. Germany
Emoticons (lifestyle)

Emoticons is an application that enables users to insert emoticons (small graphics that replace text) into their emails and texts. Users open the program and start writing a message. Users can select one of many emoticons that are displayed at the bottom of the screen by tapping it with their finger. Consumers can choose from the range of smiley faces or pick an icon from one of the six other categories.

6. Australia
A Doodle Fly - Fly to the Moon (games)

See "A Doodle Fly - Fly to the Moon".

7. Japan
Live Link 3G J (social networking)

Live Link 3G brings live video calling to the iPhone. The app (currently only available from the Japanese iTunes store) connects two users via a live video and audio feed. Live Link 3G users can choose to show their contacts what they are seeing or can turn their iPhone around to talk face to face. The application splits the iPhone screen in half horizontally; one half shows the live video feed coming from their own camera, the other half shows what is being captured on their contact's phone.

8. Italy
Traduttore Professionista (utilities)

Traduttore Professionista (Professional Translation in English) is an application that can be used to automatically translate multiple languages into your native language. The application is based on Google Translate's algorithms. It enables users to translate sections of text on the go and to save the translated text for future reference. There is also a search function that can be used to trawl through terms used in previous translations. You must be connected to the internet to translate text using Traduttore Professionista.

9. China
YouKu (entertainment)

YouKu is a native iPhone application for the Chinese video-hosting website Youku.com. The application is a mobile portal that lets users search for and watch Youku.com videos on their mobile device. Users can browse through the large collection of videos, select videos from the recommended video lists, see the most viewed video clips, search for videos by keyword and enjoy full-screen video playback whilst connected to the internet.

10. Netherlands
iKenteken (utilities)

iKenteken is an application that enables users to look up information about vehicles using information from the Rijks Dienst Wegverkeer (RDW - the Dutch Government's motor vehicles and driving licenses administrative body) database. Users simply type in the license plate number and the application searches the database to return information about the brand, make and model of the car. It also retrieves other related vehicle information including the color of the car, its horsepower, the energy label, and even the type of fuel the car runs on.

(*The countries listed are those markets in which the most iPhones and iPod Touches have been sold worldwide. The list of top ten countries is based on AdMob's November 2009 estimate of the worldwide iPhone and iPod touch User Distribution.)