Games, tools and honest price comparisons
appzas is a family of independent projects made by one person. Pick a section: each project lives on its own address and has its own policies.
Games
Short rounds and a new challenge every day.
Developer tools
Small utilities for the things you look up every week.
Everyday tools
Free, private and instant, with nothing uploaded.
Calculators
See what extra payments and time really do to your money.
Compare and prices
Published prices side by side, with sources.
About the maker
I'm Ieltxu Rayo Pereiras, a sysadmin and cybersecurity tooling builder based in Spain.
My work sits where infrastructure and security meet. I build practical tools for red team and blue team operations, meant for real-world use rather than demos, mostly in Python and Go, with Bash or PowerShell when they fit better. Two of them are open source on GitHub: reaper, a red team enumeration and pentesting framework, and warden, an Active Directory and Windows hardening auditor.
appzas is where I publish the tools I make for everyone else: a games project, browser tools, calculators and price comparisons. The approach is the same: things that work properly, run in your browser when they can, and are honest about their limits and sources.
Find me on GitHub and LinkedIn, or write to rayoieltxu@gmail.com.