Web app

Custom web app development – from €1,999 one-time

We build small, clearly defined web apps for businesses in Germany: browser-based applications that handle one specific workflow – such as taking requests, managing appointments or replacing a spreadsheet. Prices start at €1,999 net, one-time. We set the final price in a fixed quote based on the agreed features before the project starts.

Hosting, third-party services and technical maintenance (from €29 per month) are separate.

What a web app means in practice

A website informs visitors. A web app lets people get something done: enter, store, edit and find data – often with a login and several views. It runs in the browser on computers, tablets and phones, with nothing to install from an app store.

Typical small web apps

  • Request or booking tool

    Customers send a structured request or pick a time slot; your team sees everything in one list with a status.

  • Spreadsheet replacement

    A process that runs in Excel or by email today gets forms, fixed fields and one shared overview.

  • Calculator or configurator

    Visitors work out a price, a quantity or a variant and send the result as a request.

  • Internal dashboard

    Your team keeps orders, customers or stock in one place instead of scattered files.

  • Simple customer portal

    Customers log in and see, for example, their documents, appointments or the status of their order.

  • AI-assisted tool

    One clearly limited AI feature, such as summarising text or analysing photos – with human review where it matters.

Whether your project fits the entry range depends on its scope – see “What determines the price”.

When a custom web app makes sense

  • Your process is clear, repeats often and does not fit any off-the-shelf software
  • Several people work with the same data that is scattered across spreadsheets or emails today
  • You want to start with a small first version and extend it later

When it does not

  • Existing industry or standard software already covers your needs – it is usually cheaper
  • You need ERP connections, many integrations or complex role models – that is beyond the entry range
  • You are planning a platform for several companies with its own billing

02 / Web app

What “from €1,999” means

€1,999 net is the entry price for small, clearly defined web apps. It does not automatically apply to every portal, booking system or AI tool. You get the final price in a fixed, written quote before work starts.

Included in the quote

  • Clearly defined features, agreed in writing
  • Fixed quote before the project starts
  • Development and release

Charged separately

  • Hosting and third-party services, e.g. email delivery, payment providers or AI APIs
  • Technical maintenance from €29 per month net; the scope is agreed in writing beforehand
  • Extensions beyond the agreed scope
Technical maintenance

Web app

What determines the price

What matters is less the number of screens than what happens behind them:

Cost driverUsually within the entry rangeIncreases the effort significantly
Roles and loginOne role, e.g. only your team; users are created by an adminSeveral roles, self-registration, customer accounts
DataOne or two kinds of records, e.g. requests with a statusMany linked records, versions, a complete history
IntegrationsNone, or just email notifications and a CSV exportCalendar, payment provider, ERP or accounting with syncing
PaymentsNoneOnline payment, subscriptions, invoices
Special logicNone, or simple calculationsAI features, extensive calculation or planning logic
DesignProven design systemFully bespoke interface

The detailed cost-driver table with a worked example is in our guide: How Much Does a Custom Web App Cost in Germany?

Process

How a web app project works

  1. 01

    Zoom call

    You describe who will use the application and which workflow it should handle.

  2. 02

    Send your description

    You send us your description and, if you have them, current spreadsheets, forms or examples.

  3. 03

    Scope & fixed quote

    We summarise features, roles and data in writing and give you a fixed price. You confirm.

  4. 04

    Development

    We build the agreed features. The schedule is set out in the quote.

  5. 05

    Review & launch

    You review the application, then it goes live. How acceptance and corrections work is set out in the quote.

We do not give a blanket timeline for web apps: it depends on the agreed scope and is stated in your quote. The 7-business-day first draft applies to the business website.

Projects

Our own web products as reference

These examples are Ichii's own products, developed and operated by Ichii – not client projects. They show building blocks that also come up in web apps for clients.

  • Eataaa

    Guests find their dish via QR code – in five languages.

    • Access via QR code, no app and no login
    • File upload (PDF, photo) with a review screen
    • Multilingual view in five languages
    • Anonymous insights for the venue
    • Free plan and Plus version
  • Ranxii

    AI visibility tracking and client reports for SEO agencies.

    • Scheduled weekly automated checks
    • Metrics with traceable evidence
    • Client reports as a private link or PDF
    • Per-client pricing with a trial
    • Data stored in the EU
  • P-urpose

    Plan yoga classes – a tool for yoga teachers.

    • Rule-based sequences from a curated library
    • Editor to adjust and save
    • Optional user account
    • PDF export
    • Phone and tablet view for use on the job
  • Raumy

    Redesign rooms from a photo – with AI.

    • Photo upload and AI image generation
    • Adjusting results to user choices
    • Credit-based payment model
    • Bilingual interface (German, English)
View all projects

FAQ

Web app FAQs

How much does a web app cost with Ichii?

Small, clearly defined web apps start at €1,999 net, one-time. We set the final price based on the agreed features in a fixed quote before the project starts. Hosting, third-party services and technical maintenance from €29 per month are separate.

What is the difference between a website and a web app?

A website mainly presents information. A web app processes input and stores data – for example requests, appointments or orders – and often has a login. Many small businesses only need a website at first; a web app is worth it when a recurring process should become digital.

How long does development take?

It depends on the agreed scope. The schedule is set out in the quote; we do not promise a blanket timeline for web apps.

Can a web app replace our spreadsheet?

Often, yes – especially when several people work with the same data and the process is clear. If existing software already covers your needs, it is usually cheaper. We look at this in the first call.

Is technical maintenance included in the price?

No. Technical maintenance starts at €29 per month net and is charged separately. What it covers is agreed in writing before the project starts.

Who owns the application and the source code?

Your domain and the content you supply remain yours. How the application and, where applicable, the source code are handed over is set out in writing in your quote before the project starts.

Describe your web app in a few sentences

Who will use it, which workflow should it handle, what data does it store? We reply by email with questions and suggested times for a Zoom call. The enquiry is non-binding.