When I open up my phone, I am amazed at what I can find with a swipe of my finger. Although I am a tech dinosaur, I do love having a lot of information on a phone, so that when I'm looking for something I can usually get a great answer in a matter of seconds, or in my case minutes. I'm grateful for the ability to find a restaurant, seat on an airplane, and figure out what the heck that vegetable is in the farmer's market and how do I cook it. These are some of my favorite Apps in no given order.
Specialty Produce App is a deep volume of information about fruits and vegetables, with photos, information about where and when they are grown, and some recipe and storage ideas. It's awesome, and you can also "spot" produce when you are shopping, so others can see where a certain vegetable or fruit is available. It's free.
Elizabeth Minchilli's recommendations are spot on, and the app is full of information, especially for first timers.
Uber, and have used it in Rome, New York City, and in Los Angeles. It's clean and neat with no money changing hands, and no tipping to try and figure out. The app is GPS based, and works amazingly well.
Trip Advisor occasionally; I like that there are reviews from real people, and that I can compare hotels, and restaurants, and find things to do in different cities. Free.
I have more apps on my phone than I need, but I do love the instant gratification of being able to find things, get directions, as well as the weather and current news.