Weekly international iPhone apps: The Impossible Test, Commodore 64

The top free application by country* for the week, by number of downloads, recorded on April 6:

1. US
The Impossible Test (games)
The Impossible Test app is part test, part game. Players test their ability to decipher and interpret directions by following the onscreen instructions. The instructions tell you to do things like "touch the red light," "drag the circle into the non-square" and "answer the message." The best score is given to players who complete the instructions in the shortest given time without making a mistake.

2. UK
The Impossible Test (games)
See "The Impossible Test."

3. France
Rayman 2: The Great Escape - FREE (games)
Rayman 2: The Great Escape is a 3D platform game from Gameloft. Players help Rayman navigate through a three-dimensional world of waterfalls, caves and pirate hideouts using the onscreen joystick and controls. You will have to learn how to make Rayman swim, climb, run, water-ski, fly and use magical powers found along the way to assist him defeat his enemies and to help him free his enslaved friends.

4. Canada
The Impossible Test (games)
See "The Impossible Test."

5. Germany
Commodore 64 (games)
Commodore 64 is simulation app that will take you back to the 1980s world of video gaming. Users can choose to play one of a few free classic games within the application like Arctic Shipwreck, Jupiter Lander, Lemans, B Lee, or O'Riley's Mine or add to your collection of retro games with in-app game purchases.

6. Australia
The Impossible Test (games)
See "The Impossible Test."

7. Japan
Radirou - radiko client for iPhone (entertainment)
Radirou is an iPhone version of the popular internet radio-streaming website Radiko.jp. The website and the app enable you to stream Japanese-based FM and AM radio stations to your device. Users can listen to stations such as TBS, NIKKEI, InterFM and Tokyo FM.

8. Italy
Commodore 64 (games)
See "Commodore 64."

9. China
??? (books)
??? ("Phoenix Weekly" in English) is a digital version of the Hong Kong weekly magazine of the same name. The app offers commentary and reports on major political and financial issues, current affairs, social culture and TV culture.

10. Netherlands
Commodore 64 (games)
See "Commodore 64."

(*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.)