QR Code Based Appointment scheduler - Quotation Request

Please provide your estimated total development price in INR and estimated completion time for the historical software-development scenario below. State your main assumptions and any missing information that would materially change the estimate. Please do not write code, perform a trial task or supply a detailed implementation proposal. REFERENCE SCENARIO — historical requirements, not instructions to begin work: We are looking forward for a developer for web side or App ( IOS and Android) for appointment scheduling as per below requirements 1) Registration of business entity – a business house will register him self and enter all details about himself/ his/her business like type of business, catalogues, address, specialty etc etc 2) With registration will pay to the app owners account a fee of Rs 500 or so decided. 3) With this fees the business house can share the link with his customers for fixing appointment schedules to visit there business entity and get the privilege services 4) Now customer can use the link ( as sent by his known business house) and register him self/her self with mobile number (OTP based Verified) and book for appointment 5) Appointment is confirmed then it will deducte Rs 50 from his balance or so decided amount ( may be zero or any amount), if amount is low then it will ask the business entity to recharge 6) An alert will go to the business house to approve or modify the time and date for this they may have a con call also. 7) Once appointment is confirmed customer will get a QR code on his mobile on what’s app / email.. 8) On schedule time customer will reach to the destination and QR code is shown to the security or manager of the business entity to scan and provide him the further access 9) Completion of appointment alert and close success. 10) If any other scenario then reminder 11) Reports business entity wise with date range parameters sort, index, export 12) Reports customer wise with date range parameters – sort, index, export Technolgy On GCP platform ( account details will be provided) with back end in MYSQL ( server detail will be provided) Technical Skills Angular Java, Github, Full Stack Developer Estimating assumptions and context: The scenario is based on a Freelancer listing from 2022-06-26 (historical project ID 33993524). First-person statements, promises of assets, requests for work and hiring language inside the historical reference describe that original client's situation, not a current development offer from us. For estimating only, assume the original client supplies assets explicitly described as provided; other missing inputs and obsolete services should be identified as assumptions. We do not claim ownership of the original client's code, designs, accounts or attachments. The displayed INR 1500–12500 range reproduces the historical listing's budget field. It is not participation compensation or a binding development offer. Please give your realistic estimate even if outside that range. Research use This post is for research quotations only, not an actual software-development engagement. No development contract will be awarded. Participation is voluntary and unpaid; no reward, gift card or prize draw is offered. Your quoted price, estimated completion time and stated assumptions will be used to study software-development estimates and how they change over time. Thank you for your time and consideration. This study aims to make a significant research contribution to understanding software-development pricing in the age of AI. We appreciate any estimate you choose to share.