Best Custom Application Development DevelopersApplication Development
We build custom applications for 50+ countries. Fixed price, 8-12 week delivery, senior engineers only.
IRPR builds custom applications using React, Node.js, Python, and Go. Our senior engineers ship web apps, mobile apps, and AI chatbots that handle compliance for healthcare and fintech.
Every custom application starts with a 2-week Roadmap phase. We quote a fixed price ($80K-$250K depending on scope) and deliver a working MVP in 8-12 weeks. We handle HIPAA, PCI-DSS, and SOC 2 compliance.
Founders hire us to validate a SaaS idea before fundraising. CTOs hire us to rebuild legacy systems with modern stacks. Product managers hire us to launch a new feature or vertical within their existing platform.
Types of software we ship.
Custom Web Application
Full-stack web apps using Next.js or Django. Includes authentication, database, and API integrations. Deployed on AWS or GCP.
Custom Mobile Application
Native iOS and Android apps built with React Native or Flutter. Includes push notifications, offline sync, and payment processing.
Enterprise Application
Large-scale apps for organizations with 100+ users. Includes role-based access, audit logs, and SSO via Okta or Azure AD.
SaaS MVP
Minimum viable product for subscription software. Includes Stripe billing, user management, and analytics dashboard.
AI Chatbot Application
Chatbots powered by OpenAI or Anthropic APIs. Includes context memory, intent classification, and human handoff.
Ecommerce Application
Custom ecommerce platforms with inventory management, payment gateways, and shipping integrations. Built on Next.js and Shopify APIs.
Data Analytics Application
Dashboards and reporting tools using Apache Superset or Metabase. Connects to PostgreSQL, BigQuery, or Snowflake.
Real Estate Application
MLS-integrated platforms for property search, agent CRM, and transaction management. Built with React and Node.js.
We build for every business type.
Healthcare
Fintech
SaaS
Ecommerce
Manufacturing
Why IRPR is the best custom application development developer
We have shipped 200+ custom applications for clients in 50+ countries across healthcare, fintech, and ecommerce.
Our team of senior engineers works directly with you from the Roadmap phase to release. Every project has a fixed price, a clear timeline, and a dedicated project manager. No junior developers, no offshore handoffs.
We use modern stacks like Next.js, React Native, Node.js, and Python. Every application is deployed with CI/CD on GitHub Actions, monitored with Sentry and Datadog, and backed by 99.9% uptime SLAs.
How we differ from other custom application development developers
Most agencies bill hourly and change scope. IRPR gives you a fixed price and a clear roadmap from week 1.
We start every project with a 2-week Roadmap phase where we define the product, the tech stack, and the exact deliverables. You get a fixed quote before any code is written. No surprises.
Our engineers are senior-level only. We do not outsource. Every line of code is written by IRPR employees in our US and EU time zones. You own the full source code and IP.
- bills hourly with no cap
- uses junior developers
- no compliance expertise
- vague timelines
- no post-launch support
- code may not be documented
- fixed price from Roadmap phase
- senior engineers only (10+ years)
- HIPAA, PCI-DSS, SOC 2 ready
- 8-12 week delivery guarantee
- 6 months free hosting and monitoring
- full documentation and CI/CD pipeline
Our process for custom application development
From idea to production in 8-12 weeks. Every phase is designed to reduce risk and deliver working software fast.
We follow a four-phase framework: Idea, Roadmap, Product, Release. Each phase has a clear output and a go/no-go decision point. You control the budget at every step.
The Roadmap phase costs a fixed $5,000 and includes user stories, wireframes, a tech stack decision, and a fixed price quote for the full build. If you do not proceed, you keep the Roadmap.
What ships with every custom application
Every project includes production-ready infrastructure, documentation, and monitoring. No hidden costs.
We do not just hand over code. You get a fully deployed application with CI/CD pipeline, error tracking, and uptime monitoring. Your team can take over on day 1.
All code is stored in your private GitHub repository. You own the IP. There are no licensing fees or ongoing royalties.
- Source code in your private GitHub repo
- CI/CD pipeline on GitHub Actions
- Sentry error tracking configured
- Datadog performance monitoring
- Docker containers for local development
- API documentation (OpenAPI/Swagger)
- Deployment guide and runbook
- 6 months free hosting on AWS or GCP
- SSL certificate and domain setup
- User acceptance testing environment
What we ship in this practice.
Telemedicine platform for a 50-physician clinic
Built a HIPAA-compliant video consultation app with appointment scheduling, e-prescriptions, and Stripe billing. Reduced no-show rates by 35% and cut administrative time by 12 hours per week. Stack: Next.js, WebRTC, PostgreSQL, Twilio.
Loan origination system for a fintech startup
Developed a PCI-DSS compliant application that handles loan applications, credit checks via Experian API, and automated underwriting. Processed $2M in loans in the first 3 months. Stack: React, Node.js, MongoDB, Plaid.
Subscription management dashboard for a SaaS company
Built a multi-tenant dashboard with Stripe Billing integration, usage analytics, and role-based access for 200+ customers. Reduced churn by 18% through proactive usage alerts. Stack: Next.js, PostgreSQL, Stripe, Apache Superset.
Custom ecommerce platform for a direct-to-consumer brand
Created a headless ecommerce store with Shopify backend and custom React frontend. Included inventory sync, custom checkout, and Klaviyo email integration. Revenue grew 40% in 6 months. Stack: Next.js, Shopify Storefront API, Stripe.
MLS-integrated real estate search app for a brokerage
Built a property search platform with IDX integration, saved searches, and agent CRM. Agents saved 8 hours per week on manual data entry. Stack: React, Node.js, MLS API, PostgreSQL.
Production tracking system for a manufacturing plant
Developed an ISO 9001 compliant application for tracking work orders, quality checks, and equipment maintenance. Reduced downtime by 22% and improved on-time delivery to 97%. Stack: React, Python, PostgreSQL, MQTT.
Why teams hire us.
Fixed price, not hourly billing
You get a fixed quote after the 2-week Roadmap phase. No hourly tracking, no surprise invoices. The price covers everything from design to deployment.
Senior engineers only
Every engineer on your project has 10+ years of experience. No junior developers, no interns. You talk directly to the people writing the code.
Compliance built in from day 1
We handle HIPAA, PCI-DSS, and SOC 2 compliance as part of the build. No costly retrofits. Our team has shipped compliant apps for 200+ clients.
8-12 week delivery guarantee
We ship a working MVP in 8-12 weeks. If we miss the deadline, you pay nothing for the extra time. 98% of our projects finish on time.
Full ownership of code and IP
You own everything we build. Source code, documentation, design assets, and infrastructure config. No licensing fees, no royalties, no lock-in.
Post-launch support included
We include 6 months of free hosting, monitoring, and bug fixes. Your team can take over with full documentation and a deployment runbook.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.