Margin calculators, fee checkers, and setup checklists for UK founders, resellers, and startups — built to give you a straight, correct answer in under a minute.
Browse the tools ↓Not built by us — these are AI-powered SaaS tools we rate for UK founders and SMEs. Some links are affiliate links, which support the site at no extra cost to you.
Not built by us — these are IT and SaaS tools we rate for UK founders and SMEs. Some links are affiliate links, which support the site at no extra cost to you.
Build a realistic picture of what it'll cost to get your idea off the ground before you spend a penny.
Open tool → LiveSee the cash gap between paying a supplier and getting paid by a customer.
Open tool → LiveScore an idea on market size, competition, and personal advantage — get a shareable go/no-go result.
Open tool →SproutHub is a small, growing set of free calculators and checklists for people running or starting a UK business — no accounts, no paywalls, no email required to get an answer.
The site is supported by a small amount of advertising and by affiliate links to services (like business banking or accounting software) that are genuinely relevant to what you're doing — never anything unrelated to the tool you're using.
Tools run entirely in your browser. Anything you type or calculate isn't stored on a server or shared anywhere — it's gone the moment you close the tab, unless a tool explicitly gives you the option to export it.