Build an IOS and Android WebView App - 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:

Hi there,

We are again posting this job this time from a verified freelancer account. We have a wordpress website and a flutter mobile app needs to be build.

Updated Project Details as of Jan 9th
1. you need to build a normal flutter AAP - its a news AAP
2. It gets its news articles text/image from a REST API of wordpress, I will give you endpoints.
3. It should have a start page where the user chooses their initial regions, based on the that choice we need to decide which page to show in webview (you'll host those region and wordpress endpoint URL details in firebase. So it acts as an admin panel so we can simply add new regions and websites or remove old ones. )
4. Offline mode (A nice-looking 'you're offline' page), see image below
5. It should have google AdMob integrated to show ads
6. It should support push notifications, so we can send push of new news articles, that upon clicked should open the news article on the AAP
7. A Clear Document on how to setup this AAP on any new computer later and how to build the code.

Milestone Payment Plan
1. Developing function using API with simple skeleton UI - 8K INR
In this milestone you'll get full functioning app. But not good UI
2. I'll finalize UI and stylish the app - 5K INR
3. Upon full testing and launch on the google play store - 2K INR

Estimating assumptions and context:
The scenario is based on a Freelancer listing from 2022-01-15 (historical project ID 32648226). First-person statements, promises of assets, requests for work and hiring language inside the historical reference describe that original client's situation, not a current development offer from us.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.