Square Invoices vs Invoice Ninja
Two invoicing & payments tools side by side. Prices are the starting plan a small business would pick, in USD.
Short version
Square Invoices fits retail shop, restaurant or café, trades or contractor.
Invoice Ninja fits agency or studio.- Square Invoices suits teams past ten people.
| Compare | Square InvoicesBlock | Invoice NinjaInvoice Ninja |
|---|---|---|
| In one line | Free invoicing that shares a ledger with Square POS | Open-source invoicing with a free tier and self-hosting |
| Starting price | Free | Free |
| Six-person team | $0/mo | $0/mo |
| On $10,000 of card sales | $336/mo | Your own card processor |
| Plans | Square Free $0/mo: invoice card payments 3.3% + 30¢, ACH 1% ($1 min); Square Plus $49/mo per location: 2.9% + 30¢; Square Premium $149/mo per location: 2.9% + 30¢ | Free up to 5 clients; Ninja Pro $14/mo ($140/yr); Enterprise from $18/mo for 1-2 users |
| Pricing model | Free tier | Free tier |
| Free trial | — | — |
| Users | Unlimited | 1 on free |
| Both connect to | QuickBooks Online | |
| Also connects to | Xero | No others on record |
| Team size | Just me · 2–10 people · 11–50 people | Just me · 2–10 people |
| Available in | US · UK · CA · AU | US · UK · CA · AU |
| Phone support | Every plan (US) | None listed |
| Live chat | Plans not stated | None listed |
| Support hours | Phone: 6am–6pm PT M–F for the first 90 days (Square Free only), 6am–6pm PT M–F (Square Plus only), 24/7 (Square Premium only) | Not published |
| Incidents posted | 14 incidents posted on Block's status page, which covers all Block products and regions, in the 90 days to Oct 27, 2026; 0 marked major or critical by Block. Status page | Invoice Ninja has a public status page. Status page |
| Capterra score | 4.7 / 5 from 123 reviews | 4.7 / 5 from 167 reviews |
| Trustpilot score | Not listed | 2.8 / 5 from 6 reviews (few reviews) |
| Fit: Retail shop | 85 | 30 |
| Fit: Restaurant or café | 70 | 20 |
| Fit: Service business | 85 | 85 |
| Fit: Agency or studio | 60 | 85 |
| Fit: Trades or contractor | 85 | 70 |
| Fit: Online store | 40 | 45 |
| Why people pick it |
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| Where it falls short |
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| Visit Square Invoices | Visit Invoice Ninja | |
Six-person prices are what a team of six would pay on the published plans; "Not listed" means those plans don't cover six. Card sales costs include the plan price and card fees at US rates, at a $500 average sale. How we calculate prices
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