Custom Software Development
Built Around Your Business. You Own the Code.
Senior engineering squads building custom web platforms, mobile apps, CRM, ERP, and internal systems in predictable fixed sprints. Zero vendor lock-in.
Free 30-minute call. Written plan within 5 working days.
Eight Full-Lifecycle Software Disciplines
Everything required to turn ambitious operational and product ideas into durable, maintainable production software.
Custom Web Application Engineering
Full-stack Next.js and React applications with server actions, real-time data synchronization, and responsive design.
Cross-Platform Mobile Apps
High-performance Flutter iOS and Android applications with offline SQLite sync, biometrics, and push notifications.
Custom CRM & Sales Pipelines
Single-tenant lead management, multi-currency quotation engines, and customer communication workflows without per-seat fees.
Workforce & Operations ERP
Attendance tracking, IoT biometric device sync, dynamic shift rosters, leave approvals, and payroll-ready exports.
API Gateways & Integrations
Bidirectional sync pipelines connecting payment gateways, accounting systems, legacy ERPs, and third-party SaaS tools.
Database Architecture & Optimization
PostgreSQL schema design, Row-Level Security (RLS), connection pooling, Redis caching, and automated backup routines.
CI/CD & Cloud Infrastructure
Docker containerization, GitHub Actions automated deployment pipelines, staging isolation, and zero-downtime cutover.
IP & Repository Handover
Complete Git source-code ownership transfer, architectural documentation, walkthrough videos, and 30-day warranty support.
How We Deliver in Predictable Sprints
You receive staging software to test at the end of every sprint, keeping momentum high and scope controlled.
Business goals, user journeys, technical constraints, and written Architecture & Sprint Plan.
PostgreSQL schema, Next.js / Flutter project scaffolding, and live staging environments.
Feature development, automated test coverage, and interactive stakeholder demo sessions.
Security hardening, production deployment, complete Git transfer, and 30-day warranty start.
What Your Business Owns
Complete intellectual property transfer with zero ongoing software licensing royalties.
Paid Discovery from $1,500 USD. Fixed-scope builds from $12,000 USD. Dedicated squads from $3,000/engineer/month.
Frequently Asked Questions
What kinds of custom software does SprintStack build?
How does the fixed-sprint delivery model work?
Do we own the source code and intellectual property?
How are change requests handled during a project?
What is your typical turnaround time for a custom software project?
What support is included after the software is launched?
Ready to scope your custom software project?
Schedule a 30-minute scoping call. We will review your product vision, system architecture, and timeline, then return a written sprint plan within 5 working days.
Free 30-minute call. Written plan within 5 working days.