If you're a vegetarian or a vegan in Singapore, the VSS Guide is a must-have.
This app is a directory of vegetarian restaurants in Singapore with descriptions by the Vegetarian Society (Singapore).
You can look for restaurants by name, district and price. In addition, you can also zero in on just vegan restaurants or just organic restaurants. Of course you can also look for restaurants near you.
VSS Guide is US$1.99. You can download it here.