Make the hard call — with the math in front of you.
For business operators and teams weighing ROI, break-even, pricing, cash-flow, vendor, or hiring calls: run the numbers, compare trade-offs, and leave with a defensible Decision Memo with every assumption and formula shown.
Starter is $29/mo after a 14-day trial. Pro is $99/mo when you need saved Decision Memos, exports, and role workspaces. No card to start; no charge until day 15; cancel anytime.
ROI Calculator
Live preview · runs in your browserExample inputs — drag a slider. This preview recomputes instantly, right here in your browser.
3-year ROI
+98%
Payback
19.7 mo
NPV (10% rate)
$17,061
Break-even
Mo 20
Cumulative savings vs break-even, 36 months · computed from the inputs above
Same deterministic math as the full tool. The full run takes a few seconds — it verifies your free-run quota and saves the result.
Open the full calculatorRun the decision, save the memo, open the operating system.
A single computed decision becomes an artifact your team can reuse, review, and keep beside the work.
Run a tool
Start with a calculator, forecast, scorecard, or draft builder.
Run ROI CalculatorSave the memo
The run becomes a Decision Memo with assumptions, scenarios, and trace notes.
See proofOpen your role's OS
Keep the memo beside cadence, metrics, and decision logs for your operator role.
Preview OSMini-OS preview
Founder Operator OS
Choose the decision
Pricing, cash, ROI, staffing, break-even, vendor risk, or another operator problem.
Enter your numbers
Use your inputs and assumptions. The engine shows what it is using.
Read the recommendation
Get the call, the scenario comparison, and the risk flags in one view.
Keep the trail
Save or export the memo so the owner, CFO, or board can audit it later.
Six hard questions you can answer first.
Start with the decisions that already cost time, cash, and confidence.
Should I raise my prices?
Model margin, volume, and break-even trade-offs before changing the number.
See the toolWhen will I run out of cash?
Run a 13-week cash forecast and see which week turns dangerous.
See the toolIs this investment worth it?
Compare ROI, payback, NPV, and sensitivity in one board-readable case.
See the toolDo I hire, restructure, or wait?
Map current workload to capacity, overtime cost, and headcount pressure.
See the toolWhere is break-even?
See the unit volume or revenue level where contribution margin clears fixed cost.
See the toolWhich vendor should I keep?
Score quality, cost, reliability, and responsiveness with a weighted review trail.
See the toolStart from your operating context.
The same calculators, scorecards, and draft builders are bundled into practical paths for common owner workflows. No fabricated benchmarks; each result still comes from the inputs you enter.
Digital agency toolkit
Agency Owners
Decide which prospects, prices, client accounts, and follow-ups deserve owner attention.
SaaS operations toolkit
SaaS Ops
Decide which customers, prospects, roadmap work, and cash assumptions need action this week.
Restaurant operations toolkit
Restaurants
Decide what to change in cash, staffing, menu pricing, vendors, and shift procedures.
Construction operations toolkit
Construction
Decide which job, crew, vendor, bid, or cash issue needs owner attention.
See the Decision Memo before you trust the recommendation.
Sample memo — your run uses your own numbers; the format is exactly what you will get.
First output
A memo with assumptions, scenarios, and review trail.
Decision Memo
Recommendation, assumptions, formulas, and next step.
Scenario Table
Best, base, and worst case deltas before you commit.
Trace Log
Inputs and calculations preserved for review.
Market Expansion Trace
“Should we expand into a new metro market?”
The full proof page recomputes examples on request.
See live proofMethodology behind the numbers
Net Present Value
NPV = sum(Ct / (1 + r)^t) - C0
Multi-year ROI cases.
Payback Period
Payback = Initial cost / net cash inflow
Time to recover the initial investment.
Break-even Point
Units = Fixed costs / (Price - Variable cost)
Volume needed to cover fixed cost.
Contribution Margin
CM = Price - variable cost per unit
Per-unit profit contribution.
CAC Payback
Months = CAC / (ARPA x gross margin)
Months to recover acquisition cost.
13-week Cash Runway
Ending = Prior ending + inflow - outflow
Short-term cash position by week.
Deterministic
Same inputs, same answer.
Math shown
Every figure is cited or omitted.
Read-only by design
It recommends; you decide.
Preview the operating system each role actually uses.
Pick a role, see the modules, then open the live workspace when the preview matches your workflow.
Founder / Operator
Which pricing, runway, hiring, and workflow decisions need structure before the next bet is made?
Paid plans save scenarios, preserve trace history, and turn one-off tool runs into a repeatable workflow.
Run Pricing OptimizerAgency Owner
Which client delivery, proposal, staffing, and margin workflows need repeatable artifacts instead of manual assembly?
Paid plans organize client work, exports, and reusable decision artifacts so delivery quality scales with the team.
Draft an RFP responseOps Leader
Where are handoffs, staffing, SOPs, project health, and vendor decisions slowing the workflow down?
Paid plans keep saved sessions, comparison exports, and repeatable workflow reviews available across teams.
Generate an SOPConstruction Executive
Which projects, crews, vendors, and delivery risks need executive attention before the next commitment is made?
Paid plans preserve saved reviews, exports, and workspace context so project delivery calls do not restart from scattered notes.
Plan crew capacitySales Director
Which leads, account-health risks, and follow-up motions deserve rep attention before pipeline review?
Paid plans preserve scoring history, exports, and workspace context so sales reviews do not restart from scattered notes.
Score a leadTechnical Evaluator (IT / Systems)
Can BSS produce deterministic outputs, clear traces, API controls, and implementation boundaries that hold up technically?
Pro adds API access, key-bound telemetry, JSON exports, and workflow chaining for serious evaluation.
See risk assessment exampleEconomic Buyer (Finance / Owner)
What does the team get for the subscription, what remains scoped, and how is value measured without exaggerated claims?
Pricing ties paid value to exports, saved history, API access, support, and sales-reviewed setup instead of broad automation promises.
Calculate ROI for a workflowMyRoofGenius proves the engine is already verticalized.
The same BrainStack Studio decision engine powers a commercial SaaS product for roofing operators, live in production with real pricing, billing handoff, and operator workflows.
Run free. Upgrade when the memo needs a home.
3 free runs per tool per day, no account needed. Pro adds saved Decision Memos, exports, saved work, and role workspaces.
Free preview
$0
Run public tools and see the calculation before creating an account.
Run ROI CalculatorStarter
$29/mo
Starter is $29/mo after a 14-day trial - no card to start; no charge until day 15; cancel anytime.
Start Starter TrialPro
$99/mo
Pro is $99/mo after a 14-day free trial - no card to start; no charge until day 15; cancel anytime.
Start Pro TrialBrainStack Studio
Run three real decisions free.
Pro is $99/mo after a 14-day free trial - no card to start; no charge until day 15; cancel anytime. Save the memo, export the trail, and keep the operating cadence.