Building & experimenting,
one app at a time
I'm a solo developer who loves building things. From chess openings to language learning, financial tools to travel preparation — these are some of the projects I've been working on.
Things I've built
A mix of passion projects and practical tools. Some scratched my own itch, others came from ideas I just had to try.
Opening Master
Master Chess OpeningsLearn the why behind every move. Watch, practice, and test your knowledge of 50+ essential openings with AI-powered explanations.
Sentence Lab
Spanish EditionBuild sentences, build fluency. Learn Spanish by constructing real sentences with active production and spaced repetition.
Your Horizon
Financial PlanningChart your financial future. Track investments, plan for retirement, and visualize your path to financial independence.
Cadenza
Piano Journal & LibraryMaster your repertoire, one session at a time. A practice journal and curated library for classical pianists.
ArtistPortfolio
Showcase Your ArtCreate stunning portfolio websites in minutes. Elegant galleries, custom domains, and beautiful themes for artists.
TripIQ
Travel SmarterArrive prepared, not clueless. Learn cultural etiquette, essential phrases, and local knowledge before you go.
Tichu
Classic Card GamePlay the beloved partnership card game online. Challenge friends or match with players worldwide in this strategic trick-taking adventure.
PDF Signer
Sign DocumentsSign PDFs quickly and securely. Add signatures, initials, dates, and text fields to any document in seconds.
Trading Lab
Practice TradingSharpen your trading skills risk-free. Simulate trades with real market data and learn strategies without risking real money.
TerraMap
Territory PlanningPlan and optimize sales territories with ease. Visualize coverage, balance workloads, and empower your field teams with smart territory management.
SellThisHouse
Home Sale Command CenterYour complete home-selling companion. Track deadlines, manage tasks, coordinate your team, and compare offers from preparation to closing.
Reveal The Word
Scripture MemorizationStudy Scripture and memorize for life. Progressive hint modes and spaced repetition help you commit verses to long-term memory. 100% free.
Built in the high desert
Hey, I'm Jeff — a solo developer who loves building and experimenting with software. I work on whatever interests me: education tools, creative apps, productivity utilities, games. If an idea gets stuck in my head, I build it.
I care about making things that are well-crafted and genuinely useful. Some of these projects started as weekend experiments, others as tools I needed myself. All of them reflect what I find interesting and worth exploring.
I work in Albuquerque, NM — a place with clear skies, wide open space, and not a lot of distractions. It's a good place to focus and build things.
Let's connect
Have a question, idea, or just want to say hi? I'd love to hear from you.
jeff@highdesertapps.com