Contact

Natural language tools for classroom mathematics.

Ninebark helps students spend less time learning calculators and more time learning mathematics.

Try Ninebark Become a Pilot Partner
Ninebark Calculator
mean of 4, 7, 11, 3
Interpreted as mean({4, 7, 11, 3})
6.25
Reuse
Decimal Fraction
Ninebark for Desmos
graph x^2 from -4 to 4 → Graphed x^2 from -4 to 4.
Ninebark Calculator
solve x+6=10
Interpreted as solve((x + 6)=10)

Equation Solution

x = 4
Reuse
Ninebark for Desmos
tangent line to x^2 at x=1 → Graphed the tangent line to x^2 at x=1.
Ninebark Calculator
20% of 85
Interpreted as ((20 / 100) * 85)
17
Reuse
Decimal Fraction
Ninebark for Desmos
standard deviation of 4, 6, 10, 23 → Computed the standard deviation of 4, 6, 10, 23.
Ninebark Calculator
cos of pi radians
Interpreted as cos(pi rad)
-1
Reuse
Decimal Fraction
Ninebark for Desmos
make a table with x values 1, 2, 3 → Created a table.
“Traditional scientific and multi-function calculators often get in the way of students learning the underlying mathematics. Teachers spend valuable instructional time teaching students which buttons to press and how to navigate calculator functions, instead of deepening student understanding and fluency with mathematics.”
— Martha Schlatter, Director, Instructional Supports · Pioneer Math, School District of Philadelphia

Products

Two ways to use Ninebark

mean of 4, 7, 11, 3
Interpreted as mean({4, 7, 11, 3})
6.25
Reuse
Decimal Fraction

Ninebark Calculator

A natural language calculator that understands plain English.

Ninebark for Desmos showing the query "graph x^2 from -4 to 4" and the resulting graph in Desmos, expression list on the left and the graph on the right

Ninebark for Desmos

Use Desmos through natural language.

Why educators choose Ninebark

Natural Language

Students type mathematics naturally. No learning buttons or navigating menus.

Teacher Controls

Teachers choose which features and tools are available.

Accessible

Voice input, audio output, and display settings help support a wide range of learners.

Built for Modern Classrooms

Designed around the smartphone environment today's students are accustomed to.

Reliable

Ninebark is deterministic software, not AI.

Pilot Program

Help shape the future of calculators.

Become a pilot partner for Ninebark for the Fall 2026 semester:

  • Choose to pilot either the Ninebark Calculator or Ninebark for Desmos
  • Free access to Ninebark
  • Receive direct support
  • A say in what gets built next

Incorporate Ninebark in whatever way works for your classroom and provide brief feedback.

Learn more about piloting

FAQs

Frequently Asked Questions

Who is building Ninebark?
Dylan Winning
Dylan Winning, Founder

Dylan is a student at Haverford College studying Mathematics and Philosophy.

Is Ninebark AI?

No. Both the Ninebark Calculator and Ninebark for Desmos are deterministic. They interpret natural language with fixed rules, so they always give the same result for a given input.

What math can Ninebark currently support?

Ninebark Calculator: Almost everything a TI-84 can. A complete list of mathematical capabilities is available in the prototype.

Ninebark for Desmos: Almost everything Desmos can.

Does Ninebark replace Desmos?

No. Ninebark for Desmos is designed to make Desmos easier to use by providing a natural-language interface.

What's the difference between Ninebark and ChatGPT?

Ninebark is designed specifically for classroom use and is not AI. Students can ask it to perform mathematical computations or create visuals, but not to solve homework problems or generate explanations.