Here are all the countries where Pinger Messenger for Android is available!

Albania, Algeria, Angola, Antigua and Barbuda, Argentina, Armenia, Aruba Australia, Austria, Azerbaijan;
Bahamas, Bahrain, Bangladesh, Belarus, Belgium, Belize, Benin, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Bulgaria, Burkina Faso;
Cambodia, Cameroon, Cape Verde, Chile, China, Colombia, Costa Rica, Côte d’Ivoire, Croatia, Cyprus, Czech Republic;
Denmark, Dominican Republic;
Ecuador, Egypt, El Salvador, Estonia; 
Fiji, Finland, France;
Gabon, Germany, Ghana, Greece, Guatemala, Guinea-Bissau;
Haiti, Honduras, Hong Kong, Hungary;
Iceland, India, Indonesia, Ireland, Israel, Italy;
Jamaica, Japan, Jordan;
Kazakhastan, Kenya, Kuwait, Kyrgyzstan;
Laos, Latvia, Lebanon, Lithuania, Luxembourg;
Macedonia [FYROM], Malaysia, Mali, Malta, Mauritius, Mexico, Moldova, Morocco, Mozambique;
Nambia, Nepal, Netherlands, Netherlands Antilles, New Zealand, New Zealand, Nicaragua, Niger, Nigeria, Norway;
Oman; 
Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal;
Qatar; 
Romania, Russia, Rwanda;
Saudi Arabia, Senegal, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland;
Taiwan, Tajikistan, Tanzania, Thailand, Togo, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan;
Uganda, Ukraine, United Arab Emirates, United Kingdom, Uruguay, Uzbekistan;
Venezuela, Vietnam;
Yemen
Zambia, Zimbabwe;