What is the difference between visa and visit pass?
A valid Singapore visa is not an immigration pass. A valid entry visa is a pre-entry requirement that you must apply for before travelling to seek entry into Singapore if you hold a travel document issued by one of the following countries/places listed on ICA website.
Possessing a valid visa does not guarantee entry into Singapore. You will have to satisfy the basic entry requirements (https://www.ica.gov.sg/enter-transit-depart/entering-singapore) before being considered for entry into Singapore.
The grant of a visit pass is determined by the ICA officers at the point of entry. The period of stay granted is shown on the visit pass endorsement given on the passport or the electronic Visit Pass (e-Pass) issued to you through email. You can visit the e-Pass portal or use the Visit Pass Validity Tool to check the expiry of your e-Pass or visit pass. Please note that the period of stay is not tied to the validity of your entry visa.
You may refer to ICA website for more information should you require to extend your visit pass.
This information is sourced from ICA