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Log-StudioHome
Web development · Web design · Online shops

Your website should
bring in customers.
Not just exist.

I am a certified software developer (IHK) from Langenfeld, building websites and online shops for businesses in the Rhineland — fast, findable, and set up so you can maintain the content yourself. You talk to me directly, not to a project manager.

No obligation · Reply the same working day

Not ready to talk yet? Check your website for free

Rather talk directly? +49 (0) 2173 1618220

Fixed price
You know what it costs before we start. No follow-up claims, no surprise on the final invoice.
1–8 weeks
From a simple page to a full shop. The date goes in the quote — and it holds.
No sales team
You speak to the person building your site. From the first call to after launch.
4.5 / 5from 16 reviews on Trustpilot
01 — Services

What you actually get

Five areas. For each one you can see here what gets delivered and when it is a fit.

01

Web development

Have a website built — fast, findable, and yours to maintain.

Duration: 4–8 weeks
Included
  • Built individually, no page builder
  • SEO analysis and keyword research included
  • Content you can edit yourself
  • Technically prepared for Google
  • Measured load times instead of promises
A good fit if
  • Your website is slow or dated
  • Google does not show you to anyone
  • A page builder has hit its limits
See details →
02

Web design

A presence that fits your business — not the template.

Duration: 3–5 weeks
Included
  • Design shaped around your customers
  • Thought out for mobile first
  • Obvious ways to get in touch
  • Accessible and easy to read
A good fit if
  • Your site looks interchangeable
  • Visitors cannot find how to contact you
  • The layout falls apart on a phone
See details →
03

Automation

Repetitive work runs in the background instead of piling up.

Duration: depends on the project
Included
  • Enquiries sorted and routed automatically
  • Recurring steps run by themselves
  • Connected to what you already use
  • Set up in line with data protection law
A good fit if
  • The same steps repeat every day
  • Enquiries are sorted and forwarded by hand
  • Data sits scattered across several systems
See details →
04

Online shop

Sell without getting stuck in the technology.

Duration: 8–12 weeks
Included
  • Add and manage products yourself
  • Card, PayPal and invoice payment
  • Shipping and orders at a glance
  • Mandatory legal text properly included
A good fit if
  • You currently sell only over the phone
  • Your shop loses customers at checkout
  • Inventory system and shop do not match up
See details →
05

App development

For when a website is no longer enough.

Duration: 8–16 weeks
Included
  • iPhone and Android from one codebase
  • Works without a signal
  • Publishing in the stores
  • Maintenance after launch
A good fit if
  • Your field staff need a working tool
  • Customers should stay reachable long term
  • Camera, location or scanning are required
See details →
Get free advice →Not sure what you need? Give me a call — ten minutes usually settles it.
02 — Client work

Who I have built for

Trades, mid-sized businesses, non-profits. All three sites are live — go and look.

01 / Client project

Heizung-TS

Plumbing and heating service

6s → 1.2s
Load time
Starting point

The old site took six seconds to load. On a phone, people left before anything appeared at all.

Result

Rebuilt, with automated enquiry handling behind the scenes. The site now shows up in just over a second.

Next.jsAutomationPerformanceVisit site ↗
02 / Client project

ELEKTRO MA

Master electrical contractor, Duisburg

Starting point

A certified electrical contractor doing solar, smart home and installation work, with no website at all — enquiries came only through word of mouth.

Result

A web presence with a contact form and technical search optimisation. Enquiries now also come from people who had never heard of the business.

Next.jsSEOContact formVisit site ↗
03 / Client project

Stiftung Tier & Natur

Non-profit foundation, Solingen

Starting point

A nature conservation foundation that wanted to maintain its own content and blog posts — without commissioning someone for every change.

Result

Deliberately a WordPress solution rather than a custom build. It fits the need, fits the budget, and runs without us.

WordPressCMSNon-profitVisit site ↗
03 — How it works

The process

No quote without a conversation, no project without a fixed price. You know upfront what is coming.

  1. 01

    First conversation

    You describe what you have in mind. I tell you roughly what it costs and how long it takes.

    Your effort: About 30 minutes on the phone.

    free
  2. 02

    Quote

    You get a fixed price, a schedule and a list of what is included — and what is not.

    Your effort: Read it, ask, decide.

    2–3 days
  3. 03

    Build

    I build. You can follow progress at a preview address at any time, not only at the end.

    Your effort: Text, images, feedback.

    depends on scope
  4. 04

    Launch

    Move to your domain, handover, introduction to maintaining it. After that I stay reachable.

    Your effort: Sign-off.

    1 day
Yusuf Senel, Log-Studio
04 — Your contact

You talk to me.
From the first call to after launch.

“I build your project myself. No sales person promising things the technology cannot deliver later. If something will not work, I tell you beforehand — and usually what will work instead.”
Yusuf Senel
Owner · Qualified application developer

If a project grows beyond what one person can sensibly handle, I bring in self-employed colleagues who cover exactly what is missing. I remain your point of contact.

05 — Pricing

What it roughly costs

Guide figures, not invented numbers. You get the binding price after the first conversation — in writing and fixed.

All details →
01

Web presence

Businesses that finally want to be found online

from 1,690 €
  • A few clearly structured pages
  • Optimised for mobile
  • Contact form
  • Google groundwork
approx. 2 weeks
02

Individual website

Companies with their own standards for presence and scope

from 3,900 €
  • Bespoke design
  • Content you maintain yourself
  • Multilingual possible
  • Technical optimisation
4–6 weeks
03

Online shop

Retailers and manufacturers who want to sell

from 5,900 €
  • Product management
  • Payment methods
  • Shipping & orders
  • Compliant legal text
8–12 weeks
04

Automation

Complementary, when processes eat time

from 890 €
  • Enquiries sorted automatically
  • Automate recurring steps
  • Connected to your systems
  • GDPR compliant
depends on the project

Nothing online at all yet? Single page from 690 € — approx. 1 week.

Under § 19 of the German VAT Act no VAT is charged. All prices are final prices.

06 — In-house tools

No detour via the USA

Almost every website carries the same three American services: a security check in the form, an analytics script and a booking calendar. All three send data to the USA and therefore need consent. I built the alternatives myself — and include them in client projects at no charge.

Usually
Google reCAPTCHA
Protection from form spam
With me

An invisible proof-of-work instead of image puzzles; a short rotation puzzle only on suspicion, keyboard operable. Stores no personal data, IP addresses hashed throughout.

Usually
Google Analytics
Audience measurement
With me
Skriza Analytics ↗In progress — available at launch

Figures on visitors, pages and referrers — without plaintext IPs, without passing data to third parties, on our own servers in Europe.

Usually
Calendly
Appointment booking
With me

Prospects pick a free slot themselves, with automatic confirmation and reminder. One year of Business included, usable indefinitely afterwards.

All three are brands of Log-System Development. Fewer outside services means, in practical terms: a shorter privacy policy, fewer services requiring consent, and a site that loads faster because less is fetched from elsewhere.

07 — Our own products

What we build when nobody hires us

Log-System Development develops and runs its own platforms. They are live and anyone can visit them — and they cover requirements that never come up on a company website.

Our own products by Log-System Development, not client work.

08 — Testimonials

What clients say

4,5/ 5
16 reviews on Trustpilot
Read all reviews ↗

Exactly the website I was looking for

„Ich hab so eine Webseite gesucht, sie macht sich sehr gut und auch benutzerfreundlich. Auch der Kundenservice ist super."

Lysann · 30 September 2023

Straightforward and reliable

„Hatte ehrlich gesagt keine große Lust auf komplizierte Abstimmungen, aber hier lief alles ziemlich entspannt. Man konnte normal schreiben, bekam klare Antworten und am Ende hat einfach alles gepasst. Die Seite sieht gut aus und funktioniert so, wie ich es mir vorgestellt habe."

Michael M. · 18 March 2026

Helpful and patient

„Während der Planung meines Designes war ich sehr pinkelig und ich war mir unsicher was genau ich haben wollte. Da haben mir die Herren von Log-Sys dann aber gut erklärt, warum sie die Website so aufgebaut haben, und ich bin sehr zufrieden damit."

ilkercan Polat · 20 March 2023

Great

„Ich brauchte für meine Firma eine neue Webseite. Ich bin wirklich zufrieden mit dem Service, der Qualität und der Geschwindigkeit dieses Unternehmens und sie haben alle meine Erwartungen erfüllt."

Ashgar Zada · 25 March 2023

Reviews from the Trustpilot profile of log-sysdev.de — the company behind Log-Studio. Reviews are shown in the original German.

09 — Contact

Talk first, invoice later

You get an honest assessment: roughly what it costs, how long it takes and whether I am the right person for it. Free, no obligation, and nobody will chase you afterwards.

Usually a reply the same working day.

Step 1 of 4What is it about?

What is it about?

Pick whatever comes closest. We can adjust later.

How we handle your details is set out in the privacy policy

Rather send a quick message?On WhatsAppOpen WhatsApp ↗Faster than any form: send a message, I reply once I am at the desk.