Go straight to the product that fits the job.
Contact Clairos
Get the app or get in touch.
Download Callie or Kora, browse guides, or email Clairos when you need help, partnership info, or a real human answer.
The fastest path is usually the app or the guide. The inbox is here when you need it.
Use a guide when you want the shortest path from a task to the right app.
Download apps
Download Callie or Kora.
Go straight to the product that fits the job.
Callie keeps quick math, scientific mode, conversions, date math, and money tools in one clean app.
Kora keeps mortgage payment, seller net, rental, cap rate, commission, and affordability math in one pro-ready calculator.
Read guides
Start with the calculation you need.
Use a guide when you want the shortest path from a task to the right app.
Contact the team
Questions, support, partnerships, or distribution conversations.
Use one clear inbox for general questions and one for product help.
Download now
Download Callie or Kora.
Go straight to the app that fits the job, or open the product page first if you want the screenshots and store links.
iPhone · Android
Download Callie for everyday math, conversions, and quick money checks.
Callie combines quick math, scientific mode, unit conversion, date math, and money tools in one clean app.
Apple devices · Android
Download Kora for mortgage, seller net sheet, rental, and commission math.
Kora keeps mortgage payment, seller net sheet, rental analysis, cap rate, commission split, and affordability math in one pro-ready calculator.
Next step
Start with the fastest route.
See the apps, read the guides, or email Clairos directly if you need help.