Smart Swap Hub

Discover, buy, and sell unique items quickly and securely on a modern marketplace built for buyers and sellers of all sizes.

Free Tools

6 Free Tools on vary.store

All tools run entirely in your browser — no sign-up, no data sent to our servers.

ROI Calculator

Calculate return on investment and payback period for any project.

Break-Even Calculator

Find how many units you need to sell to cover your costs.

Markup & Margin Calculator

Calculate markup percentage, margin, and selling price from cost.

VAT Calculator

Add or remove VAT from any amount at any rate instantly.

Profit Margin Calculator

Calculate gross, operating, and net profit margins from your figures.

Invoice Generator

Create a printable professional invoice in seconds — no account needed.

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