FlutterFlow App Firebase + Subscription

Description:
I’m looking for a developer to build a simple calculator app using FlutterFlow.

This is a functionality-only project (no heavy design needed).

Important: This app must be built as a reusable template system that I can study, duplicate, and modify to create additional apps.

Required Tech Stack

FlutterFlow (main app builder)
Firebase (authentication + basic data)
RevenueCat (subscription setup)

Scope of Work

Build a simple calculator app with:

Input fields
Calculate button
Output result


Also include:

Basic user login/signup (Firebase)
Simple subscription setup (RevenueCat)


MOST IMPORTANT REQUIREMENT (Teaching + Transparency)


This project must be built in a way that I can learn from it and rebuild it myself.

Please include:

Clear naming for variables and actions
Simple, easy-to-follow logic (no overcomplicated methods)
Clean, organized structure


And:

A short Loom video (5–10 minutes) explaining:
How the app works
How to duplicate it
How to change formulas for new apps






Goal


I will use this as a base template to create multiple calculator apps.




Payment Structure (Milestones Required)


I prefer staged payments:

Milestone 1 ($75–$100):

Basic calculator working (inputs → button → result)


Milestone 2 ($75–$100):

Firebase setup (user login/signup working)


Milestone 3 ($50–$75):

RevenueCat subscription integrated
Loom walkthrough video delivered

Budget

Total: $150–$250


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