Hey Product Hunt! 👋 I'm Nico, and I built SheetDrill solo.

The problem: most people "learn" Excel by watching 40-minute tutorials, nod along, and still freeze when they open a real sheet. Formulas only stick when you type them yourself and get them wrong a few times.

So SheetDrill is the opposite of a video course: short drills in a real spreadsheet that runs in your browser. You type the formula, it checks it instantly, and when you're wrong it tells you why (wrong column, missing FALSE, typed the answer instead of referencing the cell...).

What's live today:

• A free 10-question level test, from SUM to INDEX/MATCH. Takes a few minutes and tells you where you actually stand

• Lessons 1–2 free (cells, SUM, IF/AND/OR)

• Pro: VLOOKUP, XLOOKUP, SUMIFS/COUNTIFS so far, with pivot tables, dates and INDEX/MATCH next. $29 once, no subscription, 14-day refund

It works on phones too: tap cells to build formulas, like clicking in Excel.

I'd love your honest feedback:

1. What did you score on the test? 😄

2. Which Excel skill should the next lesson cover?

Thanks for checking it out!