Grab is a popular app used in most Southeast Asian countries. It is ideal for you if you are planning to travel solo. Along with being a ride-hailing app, Grab also has a food delivery service, and cashless payment solution.
Using the Ryde app, you can pool or share a ride. In fact, if you are a regular user the Ryde app also has a social connect platform that you can us eto match with riders and choose your preferred drivers.
If you intend to stay longer as a traveller in Singapore, the Deliveroo app can help you in getting food delivered right at your doorstep. From noodles at midnight to Pizzas at any time of the day, name it and its there at your doorstep.
The Singapore MRT App displays up to date and correct information about the Mass Rapid Transit System in Singapore and is quite easy and efficient to use. The app also give you the access to the updated map of the city.
Weather@SG is a useful app to install if you want to keep an update check on the weather. Not only can they help you plan your travel on the go but can also give you warnings regarding air-quality and other weather indicators.