G.T.Software development · Berlin

Websites · Apps · Local AI

Software, billed by the hour. €60 per hour.

We build websites, online shops, iOS and Android apps, and AI systems that run on your own hardware. You pay for the hours actually worked, invoiced monthly with a timesheet.

Estimate your costSee price examples
  • You own the source code – with full usage rights
  • Fixed budget per phase – no surprises
  • 12 months – warranty

Services

Three areas, one team, one hourly rate

Project lead in Berlin, development with experienced partners. You get one contact person and the complete source code.

/web

Websites & online shops

Custom code, no site builders. For companies, creators and retailers.

  • Customer accounts, login, subscriptions
  • Payments via PayPal and card
  • Sales of digital products and downloads
  • Invoices with correct VAT, incl. OSS
  • GDPR, cookie consent, SEO basics
/app

Mobile apps for iOS and Android

One shared codebase for both platforms, published on the App Store and Google Play.

  • Shared account with the website
  • In-app subscriptions via Apple and Google
  • Admin area and server API
  • 3D rendering and animation
  • Push notifications, statistics
/ki

Local AI & automation

AI models on your own hardware instead of third-party clouds. Your data stays in-house.

  • Setup of workstations such as NVIDIA DGX Spark
  • Assistants built on your own documents
  • Several models with central routing
  • Automated video editing and publishing
  • Integration with existing systems

Price examples

What typical projects cost

Reference values from our own estimates, at €60.00 net per hour. We estimate your project free of charge.

ProjectHoursNet
Company website5–8 pages, responsive, contact form, legal pages, SEO basics40–60€2,400 – €3,600
Online shopup to 200 products, PayPal and card, invoices, admin area180–260€10,800 – €15,600
Website with accounts and subscriptionslogin, recurring payments, downloads, VAT/OSS, newsletterapprox. 340€20,400
Mobile app, coreiOS and Android, accounts, in-app subscriptions, server API, admin areaapprox. 290€17,400
App extension with 3D3D character, animations, programmes, push, store releaseapprox. 370€22,200
Local AI assistanthardware setup, model selection, connection to your documents60–120€3,600 – €7,200
Content automationAI video editing, publishing to Instagram, TikTok, YouTube80–160€4,800 – €9,600

All prices are net, plus 19% VAT. We invoice actual effort. Third-party costs (hosting, domains, store fees, licences) are not included and are passed on without mark-up.

Estimator

Put your project together

Pick the building blocks. The estimator adds up the hours plus 10% project management.

Estimate, net€4,950
Building blocks75 h
Project management 10%7.5 h
Total hours82.5 h
plus VAT 19%€941
Gross€5,891

Non-binding estimate. A binding budget per phase follows our first call.

Request this selection

Process

From first call to handover

  1. First call

    Goals, scope, timeline. Free, by video or in Berlin.

  2. Estimate

    Specification and estimate in hours per phase.

  3. Contract

    Work contract with a budget per phase and an advance payment.

  4. Development

    Monthly invoice by effort, with timesheet.

  5. Acceptance

    Acceptance per phase, source code handed over to your repository.

Terms

Clear rules for both sides

Hourly rate
€60.00 net, the same for all services
Invoicing
monthly by effort, with timesheet
Budget
per phase; going more than 10% over only with your consent
Advance
at contract start, offset against monthly invoices
Rights
exclusive usage rights and source code once the phase is paid
Warranty
12 months from acceptance of each phase
Offer for business customers only (§ 14 BGB)

Contact

Tell us about your project

We reply within two working days with questions or a proposed meeting time.

ione@gtmail.ai

G.T. GmbH · Kirchstraße 41 · 13158 Berlin