Most advice tells you a business is a great idea. Almost none of it tells you what it costs, how many hours it eats, or how long before a single euro arrives. StartMargin does that first — including when the answer is no.
Run my numbers → Browse all 105
Direct service to households, no middleman
Recurring contracts with small businesses
Companionship and non-medical help
Walks and in-home care
One-to-one training, gym or at home
Sites and apps for small businesses
Automated idea validators give you a score and four plausible paragraphs. There is no number in them you can check. Every figure on this site was researched one business at a time, and when a model doesn't work for you it says so — and points at three that do.