SG Petrol Prices Lite will tell you how much it costs to buy the different grades of petrol and diesel from Shell, Caltex, Esso and SPC.
This app is the free version of SG Petrol Prices. The paid version costs US$0.99 and promises push notification when prices change. The paid version is also ad-free.
SG Petrol Prices Lite can be downloaded here.
Thanks to iMerlion reader Victor for the tip-off.