The official app of The Fat Crab - Harrow, Surrey & Clapham. The Fat Crab is a versatile dining app that caters to all your culinary needs. Whether youre in the mood for a scrumptious seafood meal in the comfort of your own home or dining out with friends, The Fat Crab has got you covered. The app allows you to easily order takeaway meals, make reservations for dining in, and even offers a convenient collection service for those on-the-go. With a wide variety of delicious dishes to choose from, The Fat Crab is your one-stop-shop for all things seafood.