From 2009 to 2013, AUD was much stronger than SGD and traded around a range of $1.20 to $1.30. On another occasion between 2015-2016, it reached the parity level last seen during the GFC. Since then, it has rebounded about 10% in 2016 and 2017. Now in 2018, it is almost par again.
The Australian Dollar (AUD) is the currency unit used in the Commonwealth of Australia. The Australian Dollar symbol is $. Commonwealth of Australia states include Cocos Islands, Norfolk Island, Pacific Island states, Christmas Island, and Australia. The Dollar is rated by the World Foreign Exchange market as the fifth most-traded currency in the world. The Australian Dollar is also known as the 'Aussie'.
The Singapore dollar (also called Sing) is used by one of the world’s most prosperous countries. Singapore has a highly developed free-market economy characterised by stable prices and an open environment free of corruption. The economy is driven by exports, particularly in consumer electronics, IT products, pharmaceuticals and other chemicals.