Rechnio
A compliant invoice in under two minutes — say what you did, and Rechnio turns it into line items.
View on the App StoreIndependent app studio
Apps and websites that put people first.
Karayazi is the studio of an independent developer. We build iOS apps with obsessive attention to detail — and websites that turn visitors into customers.
iOS AppsSwift & SwiftUIHuman Interface GuidelinesWebsitesNext.jsDesignPerformanceAccessibilityQuality
Latest from the studio
Meet Rechnio
Rechnio turns a sentence into a finished invoice: say what you did, and Apple Intelligence builds the line items right on the device. With every mandatory detail, and exportable as a real e-invoice — XRechnung, ZUGFeRD, Factur-X or Peppol BIS.
01Apps
Made for the App Store. Built for people.
Every Karayazi app follows Apple's Human Interface Guidelines to the letter — so it feels instantly familiar, works beautifully, and earns its place on your home screen.
02For clients
Websites that work as hard as you do.
From first pixel to launch: we design and develop fast, modern websites for businesses that care about quality.
01
Design & development
Custom websites, designed and built from scratch — no templates, no shortcuts. Tailored to your brand and your goals.
02
Performance & SEO
Fast load times, clean code and solid technical SEO, so customers actually find — and enjoy — your site.
03
Care & support
We stay on board after launch: updates, new content and a site that grows with your business.
03Approach
Built strictly to Apple's Human Interface Guidelines. Convincing through user-friendliness and quality.
01
Human Interface Guidelines
We follow Apple's design language to the letter, so every app feels native, familiar and right at home on iOS.
02
User-friendliness
Every screen, every interaction is reduced to the essentials. If it doesn't help the user, it doesn't ship.
03
Quality
Small studio, high standards. We sweat the details others skip — from animations to accessibility.
04Studio
One studio. One standard.
Karayazi is an independent one-person studio. That means no handoffs and no diluted decisions — the person who designs your product is the person who builds it.
We publish our own iOS apps and build websites for a small number of clients. Both share the same standard: honest craft, clear design and software that respects its users.
- Based in
- Antalya, Türkiye
- Founded
- Independent since day one
- Focus
- iOS apps & websites
- Standard
- Apple Human Interface Guidelines
Contact
Let's build something people love.
Tell us about your project — we usually reply within 24 hours.
Write to us
Or email us directly: hello@karayazi.de