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App development

From one workflow to the App Store.

Custom iPhone, iPad and web apps for businesses that have outgrown spreadsheets and messaging apps. Built by the person who publishes his own apps.

Workflow Diagnostic · €490

Gross-to-net breakdown with employee contributions and income tax
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Published

Apps already on the App Store.

96 apps in the catalogue, each built, published and maintained by me.

When a custom app makes sense

  • Several people repeat the same steps and copy data between tools
  • The work happens away from a desk: on site, on a boat, in a kitchen
  • A spreadsheet or group chat has become the system of record
  • You need your own rules, not a generic app's

When it doesn't

  • An existing product already does the job for a monthly fee
  • The process changes every week and nobody owns it yet
  • You need an online shop: that is a different service

How it is built

One workflow, written down, then built.

  1. Workflow

    Your workflow

    The steps your team repeats today, written down first.

  2. Data

    Data and rules

    One model for records, permissions and validation.

  3. Interfaces

    Interfaces

    The screens people use, on the devices they carry.

    iPhoneiPadWeb
  4. Release

    Release

    App Store or web release, with a written handover.

  5. Care

    Care

    Monitoring and updates when rules or devices change.

How a custom app is put together, from the workflow to care.

What it costs, step by step.

  1. Read

    Workflow Diagnostic

    €490

    One workflow read end to end. You keep a written decision pack.

  2. Install

    Workflow Install

    From €2,500

    One bounded system installed against a written scope, then handed over.

  3. Build

    Business Systems Build

    From €8,000

    Quoted against a signed specification. 30 days of defect fixes included.

  4. Care

    Systems Care

    €500/month or €1,000/month

    Monitoring, a monthly health summary and scheduled maintenance.

Prices in EUR, excluding VAT.

Most apps start with the diagnostic. The fee is credited against a larger install contracted within 30 days.

What you receive

Source code and accounts in your name

A signed specification before the build

Two consolidated feedback rounds and 30 days of defect fixes

A written handover your team can follow

Questions

Questions before you start.

Do I need the App Store, or is a web app enough?

Often a web app is enough and cheaper to run. The diagnostic decides it, in writing, before any build.

Who owns the app?

You do: the code, the store listing and the accounts are in your name.

What happens after launch?

Thirty days of defect fixes are included. After that, Systems Care covers monitoring and updates from €500/month.