Software built small, sharp, and useful.

The studio and portfolio of Zack Griffin: practical apps and playful games, made independently.

PlanThat

Turn "we should hang out" into real plans.

The shared planner for families, roommates, and friend groups. One link, everyone RSVPs, and plans actually happen.

Visit planthat.appFree on the App Store
  • Smart planning suggests times, places, and details from plain language
  • Guests RSVP through one shared link, no app or account needed
  • Tasks and chores with recurring options and automatic rollover
  • Apple and Google Calendar sync, weather and drive time alerts
  1. Make a planType it like you would say it
  2. Invite with one linkEveryone RSVPs, live
  3. Show up readyWeather, drive time, reminders

Grxffn Budgeting

One household budget, built for two.

Income, expenses, and every chart you could want, entered by you and shared with your household. No bank linking, ever. Your statements stay the source of truth and your data stays yours.

  • Dashboard and charts across every month of your history
  • Budgets by category, with penalties when you go over
  • Subscriptions, cards, savings goals, and loan payoff plans
  • Invite your partner with a code and manage one budget together
Open BudgetingFree, in your browser

Snackbyte Games

Snack. Play. Repeat.

An indie publisher crafting bite-sized fun for gamers everywhere: compact games that are easy to pick up and hard to put down.

  • On Steam

    Crash Diet Simulator

    Gobble food, dodge bombs, and grow dangerously huge in a pixel art arcade run with multiple rounds and endings.

  • Coming soon

    Jimmy Wants His Candy Back!

    A Halloween themed comedy platformer, monster bosses included, on its way to Steam.

About

An independent studio with a small, deliberate portfolio.

Grxffn is the software studio of Zack Griffin. Every product here is designed, built, and maintained in house, from first sketch to release and beyond.

The approach is simple: focused tools that do one job well, games that are easy to pick up, and software that respects the people using it.

  • Designed in houseNothing is outsourced, from first sketch to release.
  • Privacy mindedYour data stays yours. Products collect as little as possible.
  • Small by designTight scope, fast software, and no feature bloat.

Also built

  • GeoTagger BatchCustom tool for a private company that automated a manual process, turning a repetitive tagging job into a batch run.
  • Corporate landing pageCustom marketing site designed and built for a private company, from first sketch through launch.
  • AvaAn implemented agent that handles budgeting and planning requests in plain language, filing what you ask for and showing every row back for review.

More projects are on the bench.

Questions

Before you sign up.

Does Grxffn Budgeting connect to my bank?
No, and it never will. You enter transactions yourself or paste a statement, which means there are no bank credentials to store and nothing to breach. Your statements stay the source of truth.
What does Grxffn Budgeting cost?
Nothing. It runs in your browser, there is no paid tier, and there are no ads. It was built for one household and shared because other people wanted it.
Can my partner and I share one budget?
Yes. Every account creates a household with an invite code in Settings. Share the code, approve the request, and you both see and manage the same budget, cards, and goals.
Who builds these products?
Zackery Griffin, working independently. Design, code, and support are all in house, which is why the products stay small and focused rather than sprawling.
How fast do you respond to questions?
Within one business day, usually the same day. Email or call and you reach the person who wrote the software, not a queue.

Still stuck? Email [email protected] or call (530) 903-2534. Replies come within one business day.