Model every decision before you spend a single dollar.
Check Project Road Stack turns messy spreadsheets and gut-feel forecasting into a precision instrument — unit economics, What-If simulations, cohort retention, and sprint planning, all calculated locally on your device.
Every phase of product planning, in one grid.
From first hypothesis to launch-day budget, each module is built to eliminate formula errors and surface risk before it becomes expensive.
What-If Simulations
Dynamically adjust price, cost, churn, and growth rate to instantly visualize payback timelines and downside risk.
Unit Economics Engine
Evaluate margin, LTV, and CAC ratios in real time — stress-test the numbers before capital ever leaves the building.
Cohort Retention Matrices
Navigate deep, month-over-month retention grids to track long-term profitability by acquisition cohort.
Hourly Sprint Calendar
Map sprint deadlines and stakeholder alignment on an intuitive hourly calendar built for cross-team clarity.
Structured Hypothesis Testing
Run structured hypotheses against industry benchmarks tailored to your specific vertical and stage.
Product Academy & Dictionary
An embedded interactive academy and metrics dictionary sits right alongside your live project data.
Try the Unit Economics Simulator.
Adjust the sliders to mirror your own business — margin, LTV:CAC, and payback period recalculate instantly. This is a live vanilla-JS mock of the on-device engine inside the app.
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Built by planners, for planners.
We're a small team of product managers, growth analysts, and financial modeling nerds who got tired of rebuilding the same spreadsheet from scratch every time a new project needed vetting. Check Project Road Stack is the tool we wished existed — a single offline cockpit where every number, every scenario, and every sprint lives in one place.
Our mission is simple: turn complex financial modeling into instant clarity, so founders and product leaders can evaluate unit economics, stress-test hypotheses, and align budgets without waiting on a data team or opening a single browser tab. Strategy shouldn't require a spreadsheet PhD.
The app gives you an interactive What-If engine, deep cohort retention matrices, an hourly sprint and stakeholder calendar, structured hypothesis testing against industry benchmarks, and an embedded product academy — all running entirely on your device, with nothing ever leaving it.
It matters because bad assumptions are expensive, and great products are built on tested ones. Every roadmap deserves a rehearsal before opening night.
Plan offline. Decide with confidence. Build what works.
Your data never leaves your device. Period.
Check Project Road Stack was engineered as an offline-first instrument from day one. This policy explains, in plain language, why there is almost nothing to disclose: the app does not collect, store, transmit, or share any personal data. Every calculation, cohort matrix, sprint entry, hypothesis, and academy lesson is generated and stored locally on your device, and the app functions fully with zero internet connection required.
Information We Collect
We collect nothing. No account, email, name, device identifier, location, or usage analytics is gathered at any point — not during onboarding, not while you model unit economics, and not while you browse the product academy.
How We Use Information
Because no information is collected, none is used, analyzed, profiled, or sold. There is no server-side processing of your financial models, cohort data, or sprint calendars — the app has nothing to act on, by design.
Data Storage
All of your inputs — pricing assumptions, cost structures, cohort retention entries, sprint deadlines, and saved hypotheses — are stored exclusively in local, on-device storage. Nothing is synced to a cloud server, and we operate no backend database that could ever hold your project information.
Third-Party Services
The app contains no analytics SDKs, no advertising networks, no crash-reporting trackers, and no embedded third-party scripts of any kind. Your financial models and planning data are never exposed to an outside party because no outside party is ever connected.
Data Security
Since your information never transmits over a network, it is not exposed to interception, server breaches, or remote attack vectors. Security is inherited from your device's own operating-system protections, and we recommend keeping your device passcode and OS updates current.
Children's Privacy
Check Project Road Stack does not knowingly or unknowingly collect data from anyone, including children under 13. As no personal data is ever gathered from any user of any age, the app is compliant with COPPA and equivalent global child-privacy frameworks by design.
Your Control
There are no accounts to manage and no cloud records to request deletion of. Every model, matrix, and calendar entry lives on your device, so uninstalling the app permanently and completely removes all associated data.
Changes to This Policy
If our practices ever change, an updated Effective Date and revised policy will be published within the app before any new behavior takes effect. Our default commitment to zero data collection will not change without clear, upfront notice.
Contact
Questions about this policy can be sent to privacy@checkprojectroadstackapp.com. We're glad to clarify anything in detail.
Say hello.
📬 Got a question, a feature idea, or found a rough edge in a formula? We'd genuinely love to hear from you — reach out any time.
⏱ We typically respond within 24–48 hours.