✨ MULTIDISCIPLINARY DIGITAL ENGINEERING STUDIO

We Architect High-Impact Software, Mobile Apps & Data Engines

KeyDrawzer designs and builds enterprise software platforms — from intelligent personal finance mobile apps to fleet logistics analytics systems featuring spatial GIS pricing and automated document parsers.

Explore Products & Demos Calculate Project Scope
0
Tracked Delivery Visits
$0
Reported Audit Volume
0%
System Availability
0%
Custom Codebase Delivery
FLAGSHIP ECOSYSTEM

Built by KeyDrawzer

Real-world applications delivering value to users, logistics networks, and business leaders.

MOBILE & WEB APP FLUTTER ECOSYSTEM

Quincena — Personal Finance & Paycheck Manager

A modern personal finance & bi-weekly paycheck manager built with Flutter. Helps users forecast income, control recurring subscriptions, analyze expense categories, and manage premium financial paywalls seamlessly.

  • Bi-Weekly Paycheck Forecasting: Track income periods with custom spending limits.
  • Visual Expense Breakdown: Categorized charts and trend timelines.
  • Subscription & Paywall Hub: Integrated premium features, paywall screens, and expense alerts.
Flutter 3.44 Dart 3.12 Drift SQLite Riverpod iOS & Android
Quincena Personal Finance App Interface
AUTHENTIC APPLICATION SHOWCASE

Explore Application Interfaces

High-fidelity recreations of KeyDrawzer production software platforms.

Report Comparator
📊 Dashboard 🔍 Compare 💲 Prices 🗺️ Map 🕒 History ⚙️ Settings
CG cgarcia

📊 Dashboard

Summary of imported comparisons and visits. Filter by period, distribution point or driver and export processed data.

AUDIT CHECKS 🔍
24
TRACKED VISITS 📋
1316
REPORTED VOLUME 💵
$12038.00
REPORTS 📄
13
FLEET DRIVERS 🚚
5
LOW PRICES ⚠️
0
TOTAL DIFFERENCE Δ
$0.00

Discrepancy Findings by Comparison

What to add, reconcile, or review per provider import batch.

2/7
6/7
13/7
20/7
Missing from Provider (Add) Discrepancy (Reconcile) Low Price Warning

Visits by Service Category

Distribution between medical delivery, equipment retrieval, and transfer.

1,316
Medical Delivery (Visita)
9:41 📶 🔋
QUINCENA
Aug 14 – Aug 27
Current Quincena Period
$1,640.50
Remaining Budget
Income: $2,850.00 Spent: $1,209.50
Budget Breakdown
🏠 Rent / Housing $650.00 (35%)
🛒 Groceries $295.10 (20%)
🍽️ Dining Out $110.40 (15%)
🚌 Transport $85.00 (15%)
💳 Subscriptions $69.00 (5%)
🏠Home
📊Budget
📈Charts
💳Paywall

Quincena Mobile Architecture

Engineered for bi-weekly salary schedules ("quincenas"). Features a deterministic integer minor-unit financial calculation engine that guarantees zero floating point arithmetic errors.

⚡ Bi-Weekly & Semi-Monthly Schemes Supports 1-year (24 period) budget projections with auto-close carry-over resolution.
🔒 Off-Line First & SQLite Drift All transactions auto-commit atomically with zero network delay or cloud dependency.
🎨 Strict Two-Ink Design Tokens Custom MonoTokens and MonoPalette dark/light elevation token system.
LIVE ENGINE DEMO

Fuzzy Token-Matching Engine

Transport provider reports often come with erratic formatting, misspelled medical units, or rearranged names. Try typing or selecting an unformatted string below to test our normalization algorithm in real time.

Quick Presets:
Normalized String Tokens: ["metro", "med", "hub", "104"]
Matched System Facility: METRO MEDICAL CENTER HUB #104
Pricing Zone Resolution: Inner Metro Zone ($15.00 USD)
Match Confidence Score: 98.4% (Token Subset Match)
MULTIDISCIPLINARY CAPABILITIES

Core Engineering Capabilities

We bridge clean frontend design, complex backend logic, mobile engineering, and data analytics.

📱

Cross-Platform Mobile Engineering

Flutter 3.44 & React Native mobile applications. Features offline reactive Drift SQLite ORM, integer minor-unit financial engines, and subscription paywalls.

🗺️

Geospatial GIS & Zone Pricing

Spatial analysis with Leaflet and Turf.js. Includes point-in-polygon routing, concentric radial donut zones, OSM geocoding caches, and zone pricing compliance.

📄

Multi-Format Document Parsers

Automated server-side parsers for multi-sheet Excel files (xlsx), CSV streams (papaparse), Word tables (mammoth), and PDF reconstructors (pdf2json).

📊

Analytics & ExcelJS Exports

Interactive Recharts web dashboards and server-side ExcelJS workbook generators with formatted currencies, auto-filters, and embedded PNG charts created via @napi-rs/canvas.

⚡

Fuzzy Matching & Normalization

Tolerant matching algorithms that eliminate manual audit work. Normalizes unformatted client names, transport units, and locations using Levenshtein distance & token subsets.

🛡️

Enterprise Cloud Architecture

Next.js 14 App Router, REST APIs, native SQLite transactions, sliding JWT session cookies, scrypt password hashing, and role-based access control (RBAC).

INTERACTIVE CALCULATOR

Calculate Your Project Scope & Timeline

Select your software requirements to receive an instant timeline, architecture recommendation, and deliverable specs.

Calculated Project Estimate

Estimated Development Time: 3 – 5 Weeks
Recommended Architecture Stack: Flutter + Dart + Drift SQLite + Riverpod
Engineering Team Allocation: 1 Lead Mobile Engineer, 1 UI/UX Specialist
Included Scope Deliverables:
  • Cross-platform iOS & Android mobile application
  • Role-based Auth & JWT Sessions
  • Analytics & Dynamic Dashboards
  • Production deployment setup
START YOUR PROJECT

Let's Build Something Exceptional

Have a custom software application, logistics portal, or mobile project requirement? Contact our engineering team directly.

✉️
Direct Inquiry Email
[email protected]
🌐
Studio Domain
keydrawzer.com
⏱️
Response Guarantee
Within 24 Hours

Send Project Scope

✅ Message sent successfully!