Call.Net is the best and most affordable USA-based International calling app for android and iPhone to call any phone number and landline number for any country. You can call from the USA to Brazil, Columbia, Mexico, India, Denmark, South Korea, China, Sweden, Malaysia, Singapore, and also for other countries in South Africa, Nigeria, Philippines, Japan, Saudi Arabia, Taiwan, United Kingdon, France, Germany, Italy, Spain, Ireland, Netherlands, Switzerland, Hungary, Romania, Greece, Canada, Argentina, Brazil, Chile, Venezuela, Ecuador, CostaRica, Bahamas, El Salvador, Australia, and New Zealand.