Unscary

An iPhone app by B43

Get AI to do the spreadsheet work you dread — then check it

Join the waitlist

Coming soon to the App Store. We will email you the day it is ready.

A game step in the Unscary AI app: “Guess the next card.” A sequence of playing cards, ace of spades, two of hearts, three of clubs, is shown with a blank next card, and four options to pick from.

What the research says

“Fifteen years of research studies have concluded unanimously that spreadsheet errors are both common and non-trivial.”
Years of research studies have concluded unanimously that spreadsheet errors are both common and non-trivial. Source: arxiv.org
“To date, only one technique, cell-by-cell code inspection, has been demonstrated to be effective.”
Careful cell-by-cell inspection is the one technique demonstrated to be effective at reducing spreadsheet errors. Source: arxiv.org

What AI can take off your spreadsheet plate

Plenty. AI assistants can draft formulas from a plain-language description, explain what an inherited formula actually does, propose cleanup steps for messy columns, and answer questions about your data in sentences instead of syntax. The afternoons lost to formula archaeology and manual cleanup are exactly where it helps most.

A builder step in the Unscary AI app. The exercise reads “Now add the part that was missing,” showing a mock chat with a support-reply request and an empty Context slot, and a field below where the member writes the context to add.

Why 'practiced safely' is the whole game

Spreadsheet research has been unanimous for years: errors are common and non-trivial, and careful inspection is what catches them. Adding AI output to a sheet without checking it just adds a faster way to be wrong. Unscary teaches the pair together — how to ask, and how to verify the answer against your own data before it drives a decision.

How the reps work in the app

Unscary, an upcoming app from B43, turns its corporate AI training into short lessons and hands-on reps. You practice spreadsheet-and-data moves on realistic tasks, check the results, and build a verification reflex. Points and streaks keep it daily; a personal progress report shows the skill taking hold.

Fewer lost afternoons start with practiced moves.

Get early access