👋 Welcome to my portfolio

I Design
Apps That
Matter.

Hi, I'm Lefteris Ktenidis — CEO & App Designer. I design apps and flowcharts, turning ideas into digital products. Based in Greece 🇬🇷

View My Apps Get in Touch
💡

About Me

Designing ideas
one app at a time.

I'm a CEO & App Designer with a passion for turning complex ideas into simple, elegant digital products. I specialise in app design, user flows, and architecture — bridging the gap between vision and reality.

When I'm not designing, you'll find me optimising infrastructure, cutting costs, or enjoying a good cup of coffee ☕

4+
Apps Live
10+
Years Experience
∞
Coffees Drunk
Android Web Apps Flowcharts Docker Linux VPS SSL/NGINX MongoDB Agriculture Tech

My Work

Apps I've Designed

🚀
SpaceZ
A tutorial platform for developers. Video tutorials, courses, and learning resources all in one place.
Node.jsMongoDBDocker
Live Demo Docker Hub
🌐
ZTC Software
Company website and digital presence for ZTC Software. Clean, fast, and modern web experience.
Node.jsExpressDocker
Live Demo Docker Hub
🌱
AgroHelp Pro
Smart agriculture platform helping farmers with crop management, treatments, fertilization and irrigation data.
Node.jsMongoDBAndroid
Live Demo Docker Hub
📱
AgroHelp Android
Native Android app for farmers. Real-time crop data, treatment recommendations, and irrigation planning on the go.
AndroidREST APIMongoDB
Docker Hub
🏗️
DevOps Infrastructure
Full Docker containerization. 4 apps + MongoDB on a $6/month VPS with NGINX reverse proxy and free SSL.
DockerNGINXLet's Encrypt
Docker Hub
⚡
AgroPulse
Next generation agriculture pulse monitoring app. Designed for real-time field data collection and analysis.
Node.jsMapboxARM64
Docker Hub

Get In Touch

Have a project in mind?

I'm always open to new ideas, collaborations, or just a good tech chat.

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