I need a Mobile app Developer

Dear Sir/Madam, First, let me introduce you to my Business. I have an agricultural machinery and farm equipment dealership company in Mandya. My Sales Representatives visit villages to meet farmers[customers]. They Collect all the Basic Information like Name, Place, Contact Number, Area of land owned, Crops are grown etc. Then they suggest them a suitable product and then follow up with the regular sales process. Shortcomings of this process are as follows: • Sometimes my sales reps give me fake or false information. • I cannot trust whether my sales rep has actually visited the customers. • The Sales Process is not very streamlined as my sales reps are very irregular and inconsistent With following up with customers. Due to the above-mentioned shortcomings, I have decided to build a mobile app for my sales reps to streamline my sales process. I want my app to have the following features: • My sale reps must be able to add a customer data into the app. • They must be able to upload photos of the farm they visited and a selfie with a customer as an evidence of work done. • They must be able to educate customers by showing images and videos of products. • They should get automatic reminders to call customers. • They should get notified of assigned tasks. • They should be able to update the status/stage of the sale like Quotation Negotiation Value Proposition Deal won/lost. Please give me a quotation for the above. Looking forward to a mutually beneficial relationship with you. Thanks and Regards, Prashanth M V