I just shipped my first product as a solo dev from Morocco — a free Windows app for data analysis

I've been building nights and weekends for the past few months and today I finally launched.
The problem I kept running into: you have a messy data file and your only real options are Excel (which crashes on anything serious) or writing Python scripts from scratch every single time. I wanted something in the middle — a proper desktop app with a real UI that just works.
So I built Pichalyze. A Windows desktop app where you open a CSV, Excel, JSON or Parquet file and get a full suite of tools to clean it, filter it, analyze it and visualize it. No code required. Everything runs 100% locally — your files never leave your machine.
What it does:
— 30+ data cleaning operations with full undo/redo
— Smart filtering by value, date, regex, null state and more
— Charts and advanced analytics built in
— Multiple datasets open simultaneously
— Handles large files without freezing
Free plan is genuinely free. No credit card, no trial countdown. Pro at $10/month or $99/year.
Tech stack for those curious: Python, PyQt5, Pandas, PostgreSQL on Neon, Fernet encryption, PyInstaller for the .exe, webhook server on Hugging Face, landing page on Cloudflare.
Also live on Product Hunt today if you want to show some support.
Would love honest feedback from this community — what would make you actually use something like this?
https://pichalyze-landing-now.gattaouioussama.workers.dev/