Find the Best Invoice App
for Your UK Business

From tradespeople and freelancers to cafés and salons — we make it simple to compare invoice apps by features, pricing, and support, so you can choose with confidence.

Our Top Picks

Sumup Invoices

Fast, free invoicing from a trusted name in payments.

Zettle Invoicing

Send invoices easily and get paid directly into your PayPal account.

Square Invoices

Professional invoicing with extras like recurring billing.

"At UK Invoice Apps, we help small UK businesses find the right invoicing solution — quickly, affordably, and confidently."

We compare trusted tools like SumUp, Zettle by PayPal, and Square, giving you clear, jargon-free insights into how each app works, how much it costs, and who it’s best suited for.

Whether you’re self-employed, running a shop, or managing mobile services, we test these platforms in real-world scenarios — so you don’t have to.

Our goal is simple:
Help you get paid faster and manage invoices with less stress.

Not sure which one’s right for you? See all the specs side-by-side.

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