Cited, not guessed

Alternatives to the invoicing tools you already looked at

Six competitors, their own published prices, and what each one caps or brands along the way.

Alternative to What it costs The catch
BillingHub — 25 invoices USD 25 once None. Credits never expire, and a month you don't invoice costs nothing.
FreshBooks $23 / month — $276 a year Capped at 5 billable clients. Each extra user is $11 a month.
Invoice Simple $13.49 / month — $161.88 a year 10 invoices a month. The free tier is 3.
Square Invoices Free, plus 3.3% + 30¢ per card payment Square supports no multi-currency at all — it charges in your own country’s currency and converts nothing.
Stripe Invoicing 0.4% of every paid invoice Scales with the invoice, not the work: $9.60 on a single $2,400 bill.
Wave Free, or $19 a month for Pro The Wave logo prints on your invoice, and card payments cost 2.9% + $0.60.
Zoho Invoice Free Base currency only, and Zoho’s own branding on every invoice.

Every figure links to the page it was read from. See what changed and when on each alternative's own page.