TrueMath: The Math Engine for the AI Age

Why TrueMath

AI got you to the door. TrueMath gets you through.

AI changed how you and your team work. You're more productive, you sound and look more professional. The next phase is the numbers. Imagine what happens to dealflow, closes, and client engagement when the math gets the same upgrade.

Ask the way you actually talk.

No formulas, no spreadsheet syntax. Describe the calculation the way you'd explain it to a colleague. TrueMath figures out the rest and returns a result you can stake your reputation on.

Every answer is auditable.

TrueMath doesn't estimate. It finds the right calculation path, runs the math precisely, and returns the result with full lineage: variables used, steps taken, logic behind every number.

Shareable proof, not just an answer.

Speak the calculation into existence as fast as the conversation moves. Send it to a client with a quote. Share it with a counterparty on a deal. Everyone is looking at the same math, the same method, the same assumptions, so the room can agree and move on.

Teamwork powered by reliable math.

TrueMath gives your team a focal point. One set of calculations, one set of defaults, one set of customizations. The most powerful tool you can take into battle is coordination.

For Professionals

A running start. Built for the work you already do.

Calculation domains built for the work you and your team already do, ready the moment you sign in. Use, share, and customize, as a sole contributor and as a team.

Financial Advisory Investment Banking & Private Capital Corporate Finance Real Estate Construction Cloud & Tech Insurance Legal & Advisory Healthcare

How could you use AI with reliable math?

The Financial Advisor

Financial Advisory

You asked

Show Maria's retirement trajectory at her current savings rate vs. increasing contributions by $500/month, assuming 6.5% annual return.

TrueMath

At current rate: $1,847,320 at 65
With +$500/mo: $2,341,880 at 65
Difference: +$494,560 (26.8%)
Monthly income delta: +$1,648/mo

The Contractor Estimator

Construction

You asked

Break out the $2.4M renovation bid: materials at 38% markup, labor at $62/hr blended, subs at 12% overhead, 6% contingency on base costs.

TrueMath

Materials w/ markup: $905,000
Labor burden: $790,000
Subcontractor costs: $569,000
Contingency (6%): $135,840

The M&A Advisor

Investment Banking & Private Capital

You asked

Quote our fee on this $180M deal. Modified Lehman: 5% on first $1M, 4% next $9M, 3% next $40M, 2% above. $50k monthly retainer credited 100%. $1.5M floor.

TrueMath

Tiered success fee: $4,210,000
Retainer credit (6 mo): −$300,000
Net fee at close: $3,910,000
Effective rate: 2.17% of deal

The Estate Planner

Financial Advisory

You asked

What does a $2M zeroed-out GRAT return to heirs at 7.5% growth vs. the 3.8% AFR, over 5 years?

TrueMath

Annuity payment: $446,733/yr
Trust FV at 7.5%: $2,871,259
Annuities returned: $2,594,801
Remainder to heirs: $276,458 tax-free

The Solution Architect

Cloud & Tech

You asked

TCO comparison: on-prem at $1.2M capex, 3-year refresh, $88k/yr maintenance vs. cloud at $28k/month plus $280k migration cost, over 5 years.

TrueMath

On-prem 5yr TCO: $2,840,000
Cloud 5yr TCO: $1,960,000
Cloud savings: $880,000
Migration payback: Month 14

The Developer

API Integration

POST /v1/calculate

"domain": "cre_investor",
"prompt": "IRR on this deal?",
"inputs": {"purchase": 4200000,
"noi": 273000, "hold": 5,
"exit_value": 4840000,
"ltv": 0.60, "loan_rate": 0.065}

200 OK

"irr": 0.1243,
"irr_formatted": "12.43%",
"deterministic": true,
"activity": "levered_irr"

For Developers

Embed deterministic math into any product

The TrueMath API connects your application to the same math engine professionals use every day. Send a natural-language or structured prompt with your inputs. Get back a precise, auditable answer, with full lineage.

REST API: available now MCP integration: coming soon

Get Started for Free

              REQUEST
              truemath-sdk · TypeScript
            
              // Auto-handles polling for long calculations

              const result = await sdk.calculations.calculateAndWait({

                domainId: "00000000-0000-0000-0000-000000000001",

                inputFormat: "natural_language",

                prompt:

                  "Levered IRR on $4.2M, $273K NOI, " +

                  "65% LTV @ 6.25%, 5yr hold"

              });

              RESPONSE
              200 OK
            
              {

               "status": "completed",

               "results": {

                "leveredIrr": 0.1843,

                "formatted": "18.43%",

                "equityMultiple": 2.21

               },

               "lineage": {

                "activity": "levered_irr",

                "variables": 7,

                "deterministic": true

               }

              }

The TrueMath Assistant

Need a domain that isn't here? Build it in plain language.

Tell the TrueMath Assistant what you need to calculate, in plain language, and it builds the domain for you, or extends one you already have. No configuration files, no technical setup. You describe it, it builds it.

The Assistant will be a paid feature after beta. The Library will always have a free tier.

Get Started for Free

Screenshot of the TrueMath Assistant customizing a Retirement Income Drawdown Strategy domain

Customizing the Retirement Income Drawdown Strategy domain in plain language.

About TrueMath

Built on 30 years of calculation experience and 30 million users

Every time technology advances, our tools for working with numbers evolve too — from abacuses to calculators to spreadsheets, and now to AI.

TrueMath is built on PowerOne, a calculation platform developed over 30 years by TrueMath co-founder Elia Freedman. With 30 million downloads and a reputation for precision across finance, engineering, and science, PowerOne became the foundation Elia committed to TrueMath — bringing three decades of real-world calculation experience into the AI age.

The result is a math engine with thirty years of real-world use behind it, rebuilt for the way professionals work today.

Get in touch

Bill Kelly

Chief Executive Officer

Elia Freedman

Chief Technology Officer

Elizabeth Magliana

Enterprise Sales

The same answer every time. With receipts.

AI got you to the door. TrueMath gets you through.

A running start. Built for the work you already do.

Embed deterministic math into any product

Need a domain that isn't here? Build it in plain language.

Built on 30 years of calculation experience and 30 million users

The key is TrueMath.