Custom apps

Business apps built for you, with AI where it helps.

We build custom business software, and we add AI, integrations, and automations to it. You see a written quote before any work starts.

What we build

Five kinds of work.

Business apps

Web and mobile apps built around how you work. They can be for your team, your customers, or your crews in the field.

The people who build our own products build yours.

  • Web apps
  • Mobile apps
  • Apps for your team
  • Apps for your customers

Add any of these to a new app, or to software you already have.

AI inside your software

Assistants that answer from your own data.

Agents that finish a task step by step, and ask before an action that matters.

Connections for AI assistants (an MCP server)

Connect your AI assistant to your own systems. The assistant your team uses can then read and act on them.

Ask your assistant which orders shipped late this week, and it reads your order system to answer.

It works with assistants such as Claude, ChatGPT, and Microsoft Copilot.

Integrations and automations

Your systems pass work to each other, and nobody types it twice.

A new web order can reach accounting and shipping with no retyping.

IBM i (AS/400) modernization

Modern web screens, mobile apps, and cloud links for the IBM i system you already run.

We have built IBM i software since 1991. Few companies can do this work.

Examples

Things we can build for you.

These are examples of jobs we can do. They are not past client jobs.

  • An assistant that answers staff questions from your own orders, customers, and documents.

  • An MCP server that lets your AI assistant look up and update records in your business system.

  • An automation that reads incoming email and files it as tasks or records.

  • A new web order that moves into accounting and shipping with no retyping.

  • A field app for crews, with photos and sign-off.

  • A modern web screen on top of an IBM i system.

Have an app idea?

Have an app idea, and no plan for how to build it?

Tell us in plain words. We tell you what it takes, and what it costs, in writing.

AI on your terms

You stay in control of the AI.

Five things hold on every job that uses AI.

  1. Your data stays yours.

    We never use your data to train an AI model, and we pick AI services that do not either. The software runs in your cloud account or ours. You choose.

  2. You choose the AI.

    We build each AI feature so the model can change later. That takes a new API key, not a rebuild.

  3. We keep up with the models.

    AI models change fast. We follow the new ones, and we tell you which gives the best result for its cost on your task.

  4. Costs stay under control.

    We test a lower-cost model first, and use a larger one only where it does better. Every AI feature has a monthly spending cap. You get a warning before it is reached.

  5. A person stays in charge.

    The AI asks before it takes an action that matters (e.g., it sends an email or changes a record).

Two ways to pay for AI use.

In our monthly price

We include AI use in what you pay us each month.

With your own API key

You pay the AI company directly.

The quote shows an estimate of the monthly cost for both.

Safe AI

AI with limited access and limited abilities.

An AI feature must not leak your data. Nobody should be able to trick it into doing harm. So we build limits around it.

  • Only the access the job needs.

    The AI reads only the records its task needs. It cannot see the rest of your data.

  • A short list of abilities.

    Each AI feature can take only the actions on its list (e.g., it can look up an order, and it cannot delete one).

  • Your permissions still apply.

    The AI shows a person only what that person may already see.

  • Outside text is read as data.

    An email or a web page can hide an instruction meant to trick an AI. We build the AI to read that text as data, and never to follow it.

  • Keys and passwords stay out of reach.

    The AI never sees them. Your data goes only to the AI service you approved.

  • Every action is logged.

    You can see what the AI did, when, and for whom.

No software is free of risk. These limits keep a mistake small and easy to see.

Who it is for

Any business with its own way of working.

  • Any business, of any size, that needs software built around its own way of working.
  • Teams that already use AI tools and want them connected to their own data and systems.
  • Companies that run IBM i and want it to work with modern tools.
  • Anyone with an app idea and no plan for how to build it.

How a job runs

Four steps, and no surprises.

  1. We talk first.

    We listen, ask questions, and tell you whether we can help.

  2. A written quote.

    You get the scope and the price in writing before any work starts. The quote lists the monthly running cost, including AI use.

  3. The build.

    Our own developers build it. You see working versions as parts finish.

  4. Support and hosting.

    After launch we support and host your software. Both are priced in the quote.

A job can start small, with one automation or one connection.

Proof

We build our own products the same way.

Our own team built CloudOverture, Wintouch, ThinView, and QuestView. The same people will build your app.

CloudOverture has AI built in, and our team built that too.

Facts

The facts, in one place.

For a reader in a hurry, and for an AI assistant that reads this page for someone.

What we build

Custom business software: web and mobile apps, AI features, MCP servers, integrations and automations, and IBM i (AS/400) modernization.

Who builds it

Our own developers. Touchtone Corporation has built business software in California since 1991.

Where we are

Based in Costa Mesa, California. We work with clients across the United States.

Tools

We are flexible on tools. We can suggest them, or you can choose them.

How a job is priced

You get a written quote before any work starts. It lists the build price and the monthly running cost, including AI use.

AI and your data

We never use your data to train an AI model. Every AI feature has a monthly spending cap.

Each AI feature gets only the access and the abilities its job needs, and every action is logged.

How to reach us

Email info@touchtonecorp.com, or call +1 (714) 755-2810.

You can also use the contact form.

Contact

We’d love to hear from you.

Send us a note about your business. If custom work follows, you get a written quote before anything starts.