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Built by YDesign Systems Ltd. · Barcelona

Be ready before you raise.

Round0 Training helps founders practise cap tables, dilution, valuations, and funding maths before the numbers start costing real equity.

free · no signup · works offline

Continue where you left off

Six things investors expect you to do without thinking.

One scenario at a time, scored immediately.

1
Pick a drill.

Six drill types. Each generates random numbers — you can't memorize answers, only the math.

2
Enter your answers.

Percentages, euros, multi-part questions. Inputs accept European decimals (52,8) and shorthand (1.5M).

3
Read the formula. Say it out loud.

The verbal prompt is the part most founders skip. The math is right; the spoken sentence is sloppy. That's what loses negotiations.

4
Track your streak.

Progress saves locally. No signup, no account, no email harvesting. Works offline once loaded.

15 minutes a day until it's reflexive.

5 min Pre/Post basic (the warm-up, the leak everyone has)
5 min The drill you scored lowest on last time
5 min One random drill (variety locks the pattern in)

The goal isn't perfect scores in here. The goal is: when a VC says "we're at €7M pre-money with a 12% pool, pre-close, fully diluted post-money" — you've already done the math three weeks of mornings in a row, and the answer arrives before the sentence ends.

I built it for myself first.

I'm a designer turned founder, prepping a seed round for my startup in Barcelona. I've spent ten years designing product, not modelling cap tables. When I started practicing out loud — pre-money, post-money, dilution, liquidation, Article 21 LIS — my math kept slipping on the small things. Wrong denominator. Right number, wrong label. Five lessons in, the same leak kept reopening.

So I built a daily drill. Six scenarios that map to every term sheet I'd encounter. Random numbers, immediate scoring, verbal prompts. After three weeks the leaks closed and the math arrives before the question finishes.

If you're a founder prepping to raise and you can feel the same gap — this is yours. Free. No signup. Built honest.
— Gints Macans, Barcelona · 2026

Start with one scenario.

It takes a minute. Either you'll be right, or you'll know exactly what to drill tomorrow.

Start drilling →