QR Code Attendance System - Quotation Request

Please provide your estimated total development price in HKD 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:

I need someone to create a system (whether by app/google sheets/excel/google forms) for clocking in/out system allowing students to clock in/out.

1. Each student would have an own QR Code.
2. Our institute would have different staff to scan different students’ QR Code when they clock in.
3. When we scan the Student’s QR Code, we can then clock in the student.

The other way round is
1. Our institute will create and print a QR Code specific to a particular room.
2. Students who come to the particular room should scan the QR Code.
3. When a staff members arrives to the room, they will open the app to log in, and then scan the QR Code to clock in, to show that they have arrived on site.

Requirements

1. The database – if it is in the format of google sheets or google forms, it would be preferred.
2. App to be IOS and android compatible.
3. All clockin/out code scans will need to be recorded in a database (preferably excel /google sheets compatible) that is accessible from an admin panel that office staff can access. Details that will be recorded is student’s name and their mobile no., clocking in date/time, clocking out date/time, name of room.
4. Admin can pre-enter the students’ information in a database including name and mobile phone number.
5. Admin will need the ability to assign QR codes to specific rooms within the admin panel.
6. Admin will need to be able to set up app usernames and passwords.

Estimating assumptions and context:
The scenario is based on a Freelancer listing from 2021-09-12 (historical project ID 31473599). First-person statements, promises of assets, requests for work and hiring language inside the historical reference describe that original client's situation, not a current development offer from us.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 HKD 240–2000 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.