Proportions

Proportions solves ratio calculations in seconds with a clean, distraction-free interface. Set up your proportion, mark where the unknown value goes, and get instant results—no unnecessary steps or complexity.

School assignments, cooking measurements, shopping conversions, or work calculations all become faster when you can skip the mental math. The app handles single-unknown proportions efficiently, letting you move on to what matters next. Tap to position the unknown, enter your known values, and tap again for the answer.

The design strips away everything except what you need. No cluttered menus, no animated tutorials, no feature bloat—just a straightforward interface that works the same way every time you open it. Whether you're balancing recipe ingredients, scaling project costs, or checking unit conversions, the workflow stays consistent and quick.

Proportions excels at one core task: fast, reliable proportion solving. It's not built for multi-step equations or detailed mathematical instruction, but for moments when you need a result now. Students use it between classes, cooks use it during meal prep, shoppers use it at the till, and professionals use it to verify conversions on the job.

Download Proportions to replace mental math with instant accuracy.