A visual math app for students

Math you can see.

Connect formulas to their graphs, adjust parameters, and see immediately how each change shapes the curve.

  • Free for iPhone
  • German-language app

How it works

Choose. Adjust. Understand.

Choose a function

Start with a familiar function family or enter an expression of your own.

Move the parameters

Use clear, labeled controls and watch the graph respond in real time.

Build intuition

See how every change in the formula affects the curve and its important points.

Built to go deeper

More than moving a slider.

Once a curve makes sense, Plotty stays out of the way and lets you take it further.

Plot your own expression

Type a term with x — parentheses, sine, cosine, and powers included — and watch it appear while you type.

Read the important points

Roots, the y-intercept, vertices, and extrema can be marked with their coordinates. Show only the ones you need.

Compare against the original

Change a parameter and the unchanged function stays behind it as a dashed curve, so every edit becomes a comparison.

Share a link or an image

Send a link that reopens the exact configuration in Plotty, or export the graph as a PNG. The link contains the function and its parameter values—no account required.

Keep what you want to revisit

Save a configuration as a favorite and come back to it later. Favorites stay on your device.

Make the graph yours

Hide function types you are not working on, and turn axis labels or grid lines off when you want a simpler, less distracting graph.

Start with the essentials

Five functions. Endless discoveries.

From a straight line to a sine wave, Plotty makes each curve easy to explore.

Linear

f(x) = mx + t

Relationships, slopes, and intercepts.

Quadratic

f(x) = ax² + bx + c

Parabolas, roots, and turning points.

Exponential

f(x) = aˣ

Growth and decay made intuitive.

Sine

f(x) = a sin(b(x + c)) + d

Understand periodic motion through movement.

Power

f(x) = axʳ

Explore exponents and scaling.

For parents

A focused space for understanding math.

Plotty helps students explore functions at their own pace. It is a visual learning companion for building intuition—not a shortcut that simply gives away answers.

Learning by doing

Students get immediate visual feedback as they change a parameter, helping them connect an abstract formula to the graph it creates.

Private by design

Plotty has no accounts, advertising, or analytics. Settings and favorites stay on the student’s device.

Focused and approachable

There is no feed, social layer, or complicated setup—just clear controls and the mathematics students are exploring.

Ready to explore?

Turn formulas into something you can see.

Download Plotty for free and discover how much easier functions become when every change is visible.

  • iPhone
  • iOS 26 or later
  • German interface
Download on the App Store