Custom AI Web App Development
Custom AI web app development, from first prototype to production.
Custom AI web app development from Ironbridge AI Advisory is a build service for companies that need software shaped to their own workflow, with AI as part of how it works. Our senior team handles discovery, design, engineering, launch and ongoing upkeep for one flat monthly fee, month to month, and you own the code and the data. If you are still weighing build against buy, read our custom AI applications guide first.

What we deliver
A production application, not a demo. Each build includes these six parts.
Product design
Screens and flows designed around the people who will use the app, in your brand, with no third-party logos in front of your team or clients.
Frontend and backend
A React and TypeScript interface on a real database with authentication, roles and permissions from the first version.
The AI layer
Retrieval over your documents, agents that take actions, and routing of each task to the model that handles it best for the cost.
Integrations
Two-way connections to tools such as Microsoft 365, Google Workspace, Salesforce, HubSpot, Slack, Stripe and QuickBooks, or anything with an API.
Security and testing
Access rules enforced in the database, defenses against prompt injection and data leakage, automated tests and a review before launch.
Monitoring and upkeep
Errors, AI responses and costs are logged. We fix what breaks and keep shipping changes after launch as part of the fee.
How the engagement runs
Short cycles with you in the room, so you react to working software instead of documents.
- 1
Discovery
We map the workflow with the people who do it and agree on the one job the first version must do well.
- 2
Clickable prototype
Real screens on real data, early. You find out what is wrong with the idea while it is still cheap to change.
- 3
Build in rounds
Features ship in short rounds. Users give feedback on each round and it shapes the next one.
- 4
Data migration
Records, files and history moved from the old system and verified, so nothing is lost at cutover.
- 5
Launch
Production deployment on your domain with monitoring, backups and access controls in place.
- 6
Operate and extend
We maintain the app, watch how it is used and build the next features from a ranked list we review with you.
Types of apps we build
Internal tools and customer-facing products.
- Custom CRMs and revenue portals
- Pipelines, quote builders, renewal tracking and activity logs built to your sales motion, with AI filing emails and calls to the right deal.
- Client portals
- Branded self-service portals with documents, recordings, AI recaps and account history.
- Internal tools
- Admin panels, approval workflows, inventory trackers and operations control centers.
- AI dashboards
- Live reporting across systems with plain-English questions over your data and alerts when something changes.
- Knowledge base platforms
- Search across company documents, procedures and training material, with cited answers.
- Data processing tools
- Intake, validation, transformation and export under your business rules, with AI reading the unstructured parts.
How we ship quickly without cutting corners
AI-assisted engineering
Our engineers use AI coding tools to produce and revise code faster, with a senior person reviewing what goes to production.
A stack your future engineers will know
React, TypeScript, Tailwind, Supabase and other widely used tools. Nothing proprietary to us.
Feedback in rounds
One of our CRM builds for a sales team shipped in weekly rounds of feedback from the reps who used it. That rhythm is how we work by default.
Verified migrations
For one client portal we moved 214 recordings and 504 files and checked each one byte for byte before the old platform was retired.
What you own
The code
The repository is yours, in an account registered to your company.
The data
Your database and files sit in your own cloud accounts under your access rules.
No per-seat pricing
Adding users does not change what you pay us. The fee covers the team, not the headcount using the app.
A clean exit
The engagement is month to month. If you move on, you keep everything and we hand over documentation.
What a finished build looks like
- An application in production on your domain, used daily by the team it was built for
- Old data migrated and verified, and the system it replaced switched off
- AI features that are logged, tested and measured, not a black box
- Code, data and accounts owned by you
Questions we get asked
What does custom AI web app development include?
With Ironbridge it includes discovery, product design, frontend and backend engineering, the AI layer, integrations, security review, data migration, launch and ongoing upkeep. One senior team does all of it for a flat monthly fee.
How long does it take to build a custom AI web app?
A clickable prototype comes early in the engagement, and a production version of a single workflow follows in rounds. The total depends on integrations, data migration and security requirements, which we size during discovery.
What tech stack do you use?
Typically React, TypeScript, Tailwind and Supabase, deployed on a mainstream cloud host, with models from OpenAI, Anthropic, Google or open-source providers behind a gateway so a provider can be swapped.
Do we own the app and the source code?
Yes. You own the code, the data and the infrastructure, and there is no per-seat pricing or license to us.
Can you replace a system we already use, like a CRM?
Yes. We have replaced a Salesforce setup with a purpose-built revenue portal and retired a paid community platform with a client portal, including full data migration. Our case studies page describes both.
How much does custom AI web app development cost?
One flat monthly fee, month to month, scoped on a strategy call against what you want built. There is no large upfront project fee and no separate maintenance contract.
What happens after the app launches?
We keep running it: monitoring, fixes, model updates and new features from a ranked list. Most apps change the most in the months after real users start working in them.
Further reading
All articles on thisLast reviewed by the Ironbridge AI Advisory team.
Ready to build your custom app?
Book a strategy call, tell us what you need, and we will show you what a first prototype would cover.