Visit Iran as an Singaporean for tourism purposes required to have a Visa. Fortunately effective from 01 October 2015, holders of normal passports issued by Singapore are eligible for Iran Visa on Arrival. If you prefer to get Iran Visa in advance you can get an approval code in advance.
There is no any direct flight from Singapore to Iran, so currently, you have to take a transit flight when traveling to Iran, but this will soon change.
Another technology concern to prepare for is the use of American cellphones. US companies like Sprint and Verizon doesn't have roaming services in Iran.
But you can buy a local sim at the Airport for all domestic and international calls and have a normal 3G and 4G internet on your cellphone.
We suggest you to use prepaid MTN IranCell that is the second largest mobile phone network operator of Iran. It is 49% owned by the South Africa-based MTN Group.
Drinking alcohol is against the law in Iran and no shops are permitted to sell it. Anyone caught in possession of alcohol faces arrest and in the case of a tourist face deportation.
People in Iran tend to drink tea, Sharbat (a cool, sweet drink known as the world’s first soft drink) or doogh (a savoury yogurt drink). Alcohol free beer is also available. Pork is not available.
When it comes to meat most Iranians tend to eat chicken, beef or lamb, all of which are widely available.