Grubhub, which also owns Seamless, is the biggest player among food-delivery services. It processes nearly 500,000 orders daily, and its more than 22 million active diners can order from more than 155,000 takeout restaurants in over 3,200 U.S. cities plus London. Search by what you’re craving — the most popular dishes include cheese pizza, hamburgers and tuna rolls — and if you’re deciding between restaurants, peep the user-generated ratings and reviews. Grubhub Perks offers exclusive discounts and deals and you can earn restaurant loyalty rewards to redeem from the likes of Just Salad. Users can do good while they dine through initiatives such as RestaurantHER, in which diners can explore a map of women-led restaurants to support, and "Donate the Change," where diners can round up the change from orders to benefit No Kid Hungry. Since 2018, diners have donated more than $10 million, equivalent to 100 million meals.