Welcome to Hammisphere

Ready-to-use spreadsheets, powerful desktop tools, and practical Android apps

Your hub for reliable digital tools

Use the links above to explore Google Sheets templates, Python utilities, and Android apps — including my Etsy spreadsheet store featuring the Budget Tracker, Bowling Tracker, and Movie Collection Tracker. Each tool is built for clarity, automation, and minimal setup so you can spend less time configuring and more time using.

About the Developer

I'm a semi-retired technologist with 35+ years of programming experience, formerly at Northrop Grumman, now focused on building solutions that actually solve problems — from automation scripts to business-ready spreadsheets.

My latest work spans fully-automated Google Sheets templates, Python, PowerShell, Windows and Android apps . Whether it’s tracking stock halts, managing a bowling league’s stats, logging a movie collection, or monitoring a budget, I design for everyday usability. That means clean dashboards, reliable formulas, and automation that quietly works in the background.

I obsess over the details most developers overlook — log file discoverability, error handling, version transparency, and friction-free packaging. If you've ever downloaded an EXE or a spreadsheet and wondered where the instructions are or why something isn’t updating, I’ve already thought through that.

My projects balance technical polish with business practicality: interfaces that make sense, charts that tell the story instantly, and documentation that answers questions before they’re asked. I’ve launched spreadsheets, scripts, and bundled apps across Etsy, Gumroad, and freelance channels — all with the goal of empowering users without overwhelming them.

When I’m not refining my templates or Tkinter GUIs, I help others turn ideas into passive income and custom desktop tools. I believe efficient software and spreadsheets should quietly do their job — and that most user headaches can be prevented with smart defaults and honest documentation.