Finsup is a modern finance app built to simplify EMI planning and tax estimation for salaried professionals, freelancers, and business owners in India. The app helps users calculate loan repayments and income tax with real-time precision, empowering smarter financial decisions — all without requiring login or complex inputs.
The Challenge
Finsup came to us with an early-stage concept and the following goals:
Build a mobile-first calculator for EMIs and income tax tailored to Indian financial rules
Ensure fast, real-time results without heavy onboarding
Maintain a simple and frictionless UI for first-time users
Create a structure ready for future modules like savings goals and expense tracking
Our Solution
We designed and developed Finsup entirely in Flutter, with Firestore and SQLite powering dynamic financial logic and offline support.
Product Architecture & Logic
Developed robust logic for EMI, interest rate, and tenure combinations
Implemented Indian tax slab logic with support for both old and new regimes
Enabled comparison of multiple loan/tax scenarios for informed decision-making
Used local SQLite storage for fast offline access and recent history
UI/UX Design
Crafted a clean, mobile-first design optimized for quick actions
Integrated visual sliders and interactive charts to make data more understandable
Built a no-login experience to encourage usage and reduce drop-off
Designed subtle animations and micro-interactions for a premium feel
Technology Stack & Integration
Flutter for cross-platform app development (Android & iOS)
Firebase Firestore for storing tax data and config values
SQLite for local offline history and app performance
SQLite for local offline history and app performance
Results After Launch
Metrics Table
Metric
Before
After (First 60 Days)
Avg. Calculation Time
N/A
< 0.3 seconds
App Load Speed
N/A
1.4 seconds
Bounce Rate (Early Users)
N/A
18%
Daily Active Users (DAU)
MVP Launch
2,000+ in 30 days
Repeat Usage Rate
N/A
31% (30-day rolling)
Tech Highlights
Flutter (Cross-platform App)
Firebase Firestore (Config & Slabs)
SQLite (Local History)
Custom Graphs for EMI & Tax Breakdown
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