Four of Hearts
Interactive.
Independent software from South Dakota.
Four of Hearts Interactive is an independent software studio in South Dakota. We make original games and useful lifestyle apps with strong ideas, careful code, and respect for the people using them.
What we make
Fun games. Great apps.
Original games, familiar card tables, productivity and lifestyle applications, plus fast custom builds for clients with a clear problem to solve.
What we believe
Care is part of the code.
Customers deserve respect. Independent companies should have room to build inventive products that make life more useful and play more joyful.
Useful software does not need to know everything about you. We design for usefulness, not surveillance.
How we work
Make it. Test it. Improve it.
Careful engineering, thoughtful design, documentation, physical-device testing, accessibility, direct feedback, iteration, and privacy by design.
AI is part of our creative and engineering toolkit: helping us explore ideas, develop software, and test our work. People set the direction, review the results, and decide what belongs in the product.
AI also has a place inside useful products, especially our lifestyle apps. Whomly includes an optional AI-assisted public research and briefing workflow; SOVINTO’s live negotiation guidance is being developed. Capabilities and availability vary by product. We consider privacy, data flow, and human judgment as part of each design.
Why Four of Hearts
4. Ohhh. I get it.
Four of Hearts became 4OH when somebody said it out loud and the name worked. No secret acronym. No corporate mythology. Just Four of Hearts said out loud.
How we make money
Customers pay for software.
Good products cost money to build and maintain. We would rather charge clearly for useful work than let advertisers pay us to study the people using it.
Read the business model →Old-school values
Modern ambitions.
Do the work carefully. Tell the truth about what is ready. Respect people’s time. Build for the long haul without losing the fun.
Read our privacy approach →Creative technology studio
Strong idea.
Working software.
Need a custom application or interactive prototype? We can move from a useful problem to working software quickly.
Clear scope. Direct communication. No inflated process theatre.