- 3rd Whale is great because it encompasses all places eco in the area, which often are vegan too. I use it mainly to find restaurants, but you can look up other things like eco-friendly taxis, gas station, and fitness. Only downside is that 3rd Whale doesn't list every eco or vegan joint around, so sometimes I'll know more than it does, but you can submit your favorite places.
- Vegan Xpress is my favorite vegan app because it's something I've needed for a while. It lists vegan options at chain restaurants, general vegan food at grocery stores, and vegan beer & wine. Like 3rd Whale, Vegan Xpress doesn't have everything, but it is really impressive and useful.
- Vegan Steven is a neat app that will tell you what vegan restaurants are around you (based on your iPhone location). Like all of the above, it doesn't have everything, but once again it's better than nothing and you just might find some new places to check out.
- Urban Spoon is a well-known app that gives you restaurant ideas based on your location, and it includes vegetarian places
- I don't use these often, but I do like: Go Green, Good Guide, Green Tips, and Local Reuse.
UPDATE:
- You must check out QuarryGirl's Vegan Soundboard app - so fun!