SOFTWARE · AI · CLOUD · SUPPORT

Organise your business.
From the website
to getting paid.

From building your site to invoicing and finances,
with one sign-in and personal support from MS-Logic.

See the ecosystem

Less
complexity.
More
capability.

AI Ekkremés or MS-NousComplete applications

Work
(Projects, students, clients)

AI LogicInvoice

Invoicing
(Electronic, myDATA)

AI MS-Finance

Payments and finances
(Updated in real time)

One sign-in. Every application. One ecosystem.

35+years in
information technology

120+domains
under management

9applications
in one ecosystem

1sign-in
for everything

Technology
that works
for you.

Everything works together

Less work by hand. Greater accuracy. The full picture of your business.

1

Organise the work

Handle projects, clients, students or properties, depending on your field.

2

Invoice without typing it twice

The details move from the job to the invoice, electronically and on to myDATA.

3

Watch the finances update

Payments and documents feed straight into the financial picture.

Our applications

Strong tools on their own. Worth more when they work together.

See every application
AI

Ekkremés

Projects, tasks and clients in one place. Organisation that pays off.

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AI Live

LogicInvoice

Electronic invoicing and myDATA. Simple, fast, dependable.

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AI

MS-Finance

Financial management with a true picture of your business.

Learn more
AI Coming soon

MS-Nous

A platform for tutoring schools, language centres and private schools, with an AI Mentor.

Learn more
Flagship SaaS February 2027

MS-Property

Short-term rentals for owners with 1 to 3 properties. Bookings, website and assistant in one.

Learn more

Solutions for every sector

Built around what the market actually needs.

Car Repair Shops Technical Contractors Retail & Manufacturing

Proof, not promises

Sixteen live client sites, across different sectors.

The Cyprus interactive touchscreen in operation
Not everything is a website

An interactive touchscreen for a shipping exhibition

An application for a large touchscreen at an exhibition stand: no keyboard, no instructions, a few seconds of attention to work with. It ran live from our own server. The work was delivered through a partner, who held the direct relationship with the authority.

Read the case study and see the live demo

Digital solutions for today.
Ready for tomorrow.

We support the growth
of Greek businesses
with technology and people.

Get in touch

What our clients say

Relationships built on trust that lasts.

See our work
“Before working with Michael I simply had no website. Now, both in Greece and abroad, everyone who sees it asks me who made it. He is always on time, and he often makes the changes that are needed on his own initiative. I can send my site anywhere and it represents me - it honours what I do. I would not trade him for anything.
Antonis Skokos Composer, orchestrator, producer & pianist · antonisskokos.com
“We have been working with MS Logic for several years, and they originally created our website, www.osyllektis.com, from scratch. From the initial design and development to ongoing maintenance and updates, they have consistently provided excellent service and support. Communication is always clear, prompt, and professional, and they are always willing to help whenever something comes up. We are very happy with their work and would definitely recommend MS Logic to anyone looking for a reliable and professional web development partner.
Nestoras Balaskas osyllektis.com

Who is behind all this

More than 35 years of track record

Michael Siaterlis
Michael Siaterlis Founder and engineer

Technician, Team Leader, IT Manager, and at the helm of MS-Logic since 2010. More than 35 years in IT, from the Apple service centre to today’s SaaS products, with a Greek myDATA integration since 2020 and our own infrastructure for 120+ domains.

Meet Michael Read what we write
  1. 1990PC Technician & Software Trainer
  2. 1991Apple Central Service Centre, Rainbow Services
  3. 1996Greek Branch Manager, Giesecke & Devrient
  4. 1999Technical Team Leader, Apple
  5. 2001Software Team Leader, AlbaSoft
  6. 2003MS-Logic starts trading in parallel
  7. 2006IT Manager, Classique Furnishing
  8. 2010MS-Logic as an independent consultancy
  9. 2020The commercial application connects to the Greek myDATA platform
  10. 2026LogicInvoice replaces it, through a certified Electronic Invoicing Provider

Latest news and articles

Developments, guides and practical advice.

See every article

Frequently asked questions

What we get asked most, answered without the runaround.

How much does a website cost?

Development starts at 450 EUR for a simple presentation site. A complete, serious corporate site typically lands around 1,000 to 1,200 EUR. Depending on complexity, an e-shop or a custom application can exceed 3,000 or 4,000 EUR. All prices exclude VAT. After a short conversation about what you need, we give you a clear, detailed quote with no hidden charges.

How long does a project take?

A simple presentation site is completed from one week. A full corporate site takes a few weeks, while more complex projects such as e-shops and custom applications take 4 to 8 weeks. Timing depends on complexity and on how quickly we have the content, and we set a realistic timeline from the start.

What is GEO and why does it matter to me?

GEO (Generative Engine Optimization) is optimizing so you appear in AI answers (ChatGPT, Gemini, Perplexity). More and more customers ask AI instead of searching Google. If your site isn't properly structured, you stay invisible in this new, fast-growing channel.

What is the difference between SEO and GEO?

SEO aims to rank you higher in Google results, while GEO aims to make you the source the AI cites in its answer. SEO works with keywords and links, GEO with structured data (schema), content clarity and authority signals. In practice you need both: SEO for classic search, GEO for the AI answers that are rapidly gaining ground.

Do you take on sites you didn't build?

Yes. I take on the maintenance, optimization or rebuild of existing sites, after first doing an initial check of their condition.

Where are you based and who do you serve?

I'm based in Athens and work with clients across Greece and Europe. Collaboration works smoothly remotely, with clear communication at every step.

What we stand on

The partnerships and the technologies behind every application we build.

Our partnerships

The technologies we use

MS-LOGIC · SOLUTIONS FOR YOU