Check Singapore visa from these apps very easily in just 2 minutes.An in-principle approval ( IPA ) is one of the requirements for you to bring migrant workers into Singapore. You will get an IPA letter when your worker's Work Permit application is approved. The validity of the IPA will be mentioned in the letter. This is the window you have to bring the worker into Singapore.This is not a Singapore government app.I made the app to benefit common people who can't find websites easily on google.If you have any opinion you can share with us we will definitely consider your opinion