Mobile app development

Want to create a mobile app for raw food delivery ( like Fresh to Home mobile App) . The mobile app has to be well API integrated to Bitrix24 CRM. Order created on mobile app should create an order on Bitrix24 platform (php based) , and order status should be updated to accordingly hoti delivery...With also showing location of food delivery person....All data haa to be stored on bitrix24... See this link where I have added products on bitrix24 app API integration has to be done. https://b24-lmrkr9.bitrix24.shop/