If you want to start your own food delivery app, you should begin by researching the competition and demand in your area. Identify your target audience and any gaps in the market. Develop a unique value proposition that sets your app apart from others. Partner with local restaurants to offer a diverse range of options to your customers. Make sure to invest in a user-friendly app platform with easy payment and delivery logistics. Lastly, launch a marketing campaign to attract users and encourage downloads.