Selected R-MAP models are built as native apps rather than pages in a browser — because a register you edit with a thumb, a matrix you drag, and a board you glance at on a lock screen are different tools than the same maths on a laptop. Free to download. One purchase unlocks the instrument, forever, on your Apple Account.
Each is a free download. Caliber and Ideon are free outright; on the paid three, a one-time unlock opens the full instrument — there is no subscription and no recurring charge of any kind.
See which risks own the tail.
A portfolio risk register with a correlation matrix you can edit and a seeded Monte Carlo behind it. Reports which risks actually drive the tail — usually not the ones that drive the average — and prices the diversification benefit against standalone tails.
Unlock $49.99
View on the App Store →
Decide, or learn why not yet.
Structured decision analysis: frame the decision, weigh the states, and read the expected value. Then price the question most tools skip — what a further study is actually worth before you commit to it.
Unlock $24.99
View on the App Store →
EHS numbers with honest error.
Industrial-hygiene and EHS calculations done properly: similar exposure groups, mixture hazard index, required respirator protection factor, WBGT heat screening. Screening support with its limits stated — never a compliance determination.
Unlock $49.99
View on the App Store →
Find out how good your judgment actually is.
Log probabilistic forecasts, resolve them when the answer arrives, and watch your Brier score and calibration curve move. The uncomfortable, useful discipline underneath every other instrument here.
Free
View on the App Store →
Run the workshop from the iPad.
Capture ideas in front of a room, cluster forty of them into themes with a finger, then converge: silent NGT voting with a convergence measure, MoSCoW, Six Thinking Hats and a retrospective. Built for the table, not the laptop.
Free
View on the App Store →Submitted to App Review. This page is updated the day it goes live.
The day’s risk, as an estimate.
Seven risk domains treated as one coupled system. Log the outside world, watch a shock travel between domains, run correlation-aware simulation across all seven at once, and read a one-page daily estimate in calibrated language — with method, seed and run count quoted so any reader can reproduce it.
Unlock $79.99
In review with AppleThe same commitments apply to every app on this page.
There is no sign-in and nothing to create. The apps compute everything locally and work fully offline; a connection is involved only when the App Store itself processes a purchase or a restore. What you type stays on the phone — the privacy page covers this in one short section.
Each paid app is free to download with a single non-consumable unlock. It is tied to your Apple Account rather than a device: on a new phone or after a reinstall, open the app’s settings and tap Restore purchase. Apple re-validates it and the instrument unlocks at no further charge.
Every paid app is usable before you pay, and not as a countdown. Keystone ships a full example portfolio, Crux a worked decision, Aegis its calculators, Meridian its whole input-and-monitoring loop. What the unlock buys is scale and the analytical instrument — never the ability to open the app again.
Where an engine has to distort what you gave it — a correlation matrix repaired, a coupling clipped at its cap, a distribution that cannot honor all three numbers you typed — the app says so on screen, next to the number. That disclosure is the product, not a footnote to it.
The browser platform remains the full catalog — every model, every Knowledge Web, the deep analytical work that wants a large screen and a keyboard. The apps take the handful of instruments that genuinely belong in a pocket or on a table and rebuild them natively for that. Membership and app purchases are separate: buying an unlock does not require an R-MAP account, and a membership does not carry into the App Store.
