# Custom software development: websites, web apps, and business systems built around how you work

> Need a web app, customer portal, or internal tool that fits how your business works? APPSOLN builds it end to end, connects it to the tools you already use, and hands it over ready to launch.

Full-stack development means we build every part of your software: the screens people use, the logic behind them, the database, and the connections to your other tools, such as your CRM, accounting software, or payment provider. We keep it focused on a real business need, so the result is easy to test, launch, host, and add AI to later.

## Who it fits

- You need software that does not exist yet, or your current tool no longer fits how your team works.
- Your tools do not talk to each other, and staff copy information between them by hand.
- You want a reliable app you can grow, and possibly add AI to later.

## Problems

- Spreadsheets and email inboxes doing the job of a proper system
- Quick fixes and scripts that break and that nobody owns
- Off-the-shelf software that forces your team to work around it
- Apps built without asking the people who will use them every day

## Deliverables

- A clear plan for what we will build and what we will not
- Working software connected to the tools you agreed
- Documentation of how data moves between systems
- Handover notes for testing, launch, and your team

## Process

- **Understand the need.** Agree who will use it, what it must do, which tools it connects to, and what is out of scope.
- **Plan the build.** Decide the screens, data, logins, and how the software fits with what you already have.
- **Build in stages.** Build and show you working pieces regularly, so you can give feedback early.
- **Ready to launch.** Hand over stable software with clear checks for testing, launch, and hosting.

## Client involvement

- One person who can decide what done looks like
- Access to the tools and data the software needs to connect to
- Your IT or security contact, if you have one, for logins and approvals
- A few of the people who will use it, to try it out

## Success measures

- Your team uses the new software instead of a spreadsheet on the side
- Connections to your other tools are documented and owned
- The software is ready for testing and launch
- There is a clear place to add AI or automation later

## Systems

- CRM (customer records)
- ERP and accounting software
- Customer and staff portals
- APIs and payment providers
- Databases and document storage

## Security and access

People and systems only get the access they need. Passwords and keys are kept out of the code. We document what data moves where, so your IT or security team can review it before launch.

## Human control

Your team approves the software against the agreed checklist. Changes go live on your schedule, following your approval process.

## What you leave with

You get working software, clear documentation, and a smooth handover to testing and launch, or we handle those steps too if you hire us for them.

## Common questions

### Is this just a generic software project?

No. Every build is tied to a real business need. You get software your business can run, test, launch, and grow, not an open-ended wish list.

### Do we need AI before we build?

No. AI works best on top of solid software. If the app or connection you need is missing, we build that first.

### Which technologies do you use?

We usually build with React, Next.js, TypeScript, Node.js, Python, .NET, and PostgreSQL. If your business already runs on a particular technology, we work with that instead of forcing a change.

### Can you work with the tools we already have?

Yes. We start from the tools you already run, such as your CRM, accounting software, portals, and databases, and connect them properly instead of adding another tool nobody maintains.

## Related services

- [Testing](https://appsoln.com/services/testing/index.md): Testing checks that your software does what it should, that its connections to other tools keep working, and that everyday tasks, including any AI-assisted steps, hold up with realistic data. We combine automated tests that run on every change with hands-on checks of the parts that matter most.
- [DevOps](https://appsoln.com/services/devops/index.md): DevOps is how finished code gets to your live software safely. We automate the steps from a developer's change to a live update, keep your test and live environments matching, add alerts so problems are spotted early, and write down how to undo a release. Launches stop being stressful and stop depending on one person.
- [AI Integration](https://appsoln.com/services/ai-workflow-integration/index.md): AI integration turns an agreed AI idea into something your team uses every day. Information comes in from your existing tools, AI handles a specific job, a person checks the exceptions, and the results go back into the systems where you keep your records.

## Technologies and roles

- [React](https://appsoln.com/technologies/react/index.md): React is the most widely used technology for building the screens people click, type, and tap on in a web app. It powers everything from small booking tools to large company dashboards.
- [Next.js](https://appsoln.com/technologies/nextjs/index.md): Next.js is built on top of React and adds the things most businesses need: fast page loads, good search engine visibility, and a simple way to run the website and its back end together.
- [TypeScript](https://appsoln.com/technologies/typescript/index.md): TypeScript is a safer version of JavaScript, the language of the web. It checks the code as it is written, so many common mistakes are caught before the software goes live.
- [Node.js](https://appsoln.com/technologies/nodejs/index.md): Node.js runs the behind-the-scenes part of many web apps: the part that saves data, talks to other systems, and sends information to the screens people see. It uses the same language as the website itself.
- [Python](https://appsoln.com/technologies/python/index.md): Python is the most popular programming language today. It is used for web back ends, automating repetitive tasks, working with data, and almost all modern AI work.
- [.NET](https://appsoln.com/technologies/dotnet/index.md): .NET is Microsoft's platform for building business software, usually written in the C# language. Many companies run their core systems on it, and modern .NET works well in the cloud.
- [PostgreSQL](https://appsoln.com/technologies/postgresql/index.md): PostgreSQL is a popular, free, and very reliable database, the place where an app stores its information. It is trusted by startups and large companies alike.
- [Hire a Full-Stack Developer](https://appsoln.com/hire/full-stack-developer/index.md): Hire APPSOLN as your full-stack developer. We build the screens, the back end, the database, and the connections to your tools, then test, launch, and host it.
- [Hire a React Developer](https://appsoln.com/hire/react-developer/index.md): Hire APPSOLN as your React developer to build new web apps, add features to an existing React app, or modernise old screens.
- [Hire a Next.js Developer](https://appsoln.com/hire/nextjs-developer/index.md): Hire APPSOLN as your Next.js developer to build fast, search-friendly websites and web apps, or to move an existing site to Next.js.
- [Hire a Node.js Developer](https://appsoln.com/hire/nodejs-developer/index.md): Hire APPSOLN as your Node.js developer to build APIs, connect your business tools, and power the back end of your web app.
- [Hire a Python Developer](https://appsoln.com/hire/python-developer/index.md): Hire APPSOLN as your Python developer to build APIs, automate repetitive tasks, work with data, or add AI features to your software.
- [Hire a .NET Developer](https://appsoln.com/hire/dotnet-developer/index.md): Hire APPSOLN as your .NET developer to build ASP.NET Core applications and APIs in C#, or to modernise older .NET systems and move them to the cloud.

Canonical page: https://appsoln.com/services/full-stack-development