Popular tools

A great starting point if you just need a quick price floor, margin, or PPC limit. All calculators run client-side in your browser and do not store inputs.

30+

Tools (roadmap)

5–6

Inputs per tool

0

Login required

Why these tools?

These calculators are intentionally small: few inputs, clear outputs, explainable logic. So you can find the right guardrail fast — no setup and no data leakage.

1

Protect minimum prices

Avoid selling below costs + fees — even when the market pushes down.

2

Make fee traps visible

Translate percentages into euros — so price changes don’t happen by “gut feel”.

3

Plan your competitive position

Metrics like break-even ACoS help structure decisions under pressure.

4

Simulate BuyBox scenarios

Quick checks instead of spreadsheet friction — as preparation for real rules in your system.

5

Exports & templates

Copy/CSV today, optional exports later — pragmatic, without backend setup.

6

Repricing rules as the next step

Once the guardrail is defined, it becomes a persistent policy in your system.

Repricing without a price spiral

These tools help you define guardrails. The next step is turning them into rules in your system: minimum prices, price rails, dynamic strategies — explainable and consistent.