8 Best Invoice Simple Alternatives (2026): Free and Cheaper Options

Invoice Simple alternatives make sense the month you send a fourth invoice: the free Essentials plan stops at 3 invoices a month and only Premium gives you unlimited invoices. The best overall replacement is InvoiceSonic, which sends, tracks and reminds for free with no watermark. The best free tool for a one-off PDF is Invoice-Generator.com.au. We judged all eight on free-tier limit, watermark, Australian GST and switching cost: client import and whether your invoice numbering carries over.

Why people leave Invoice Simple

Invoice Simple is a capable mobile app for professional invoices; the friction is the plan ladder. At the time of writing, third-party listings put the web plans at US$4.99, US$13.49 and US$19.99 a month, and the Australian App Store in-app prices differ again. For a small business sending 5 to 15 invoices a month, several tools below do the same job free.

Quick comparison

"None stated": not advertised and not confirmed either way. Wave (US and Canada only) and Zervant (Europe only) were left out.

1. InvoiceSonic — Best overall

InvoiceSonic is free invoicing software that does what Invoice Simple charges for: create and send an invoice from phone or browser in under a minute, then see who has paid. It suits sole traders and small businesses that want automatic reminders to handle late payments, and it charges a 0% InvoiceSonic transaction fee on bank transfer and PayID payments.

Pros

• No signup for the first invoice, no watermark.
• Invoice tracker, reminders, recurring billing, Australian tax invoice format, iPhone app.

Cons

• Some features sit behind the Pro upgrade.
• No Android app listed at the time of writing; use the browser on an Android mobile device instead.

Switching cost: low; it saves your details and logo, though we could not confirm a bulk client import. Price: free tier, Pro upgrade. Best for: send-and-track without a subscription.

2. Invoice-Generator.com.au — Best free tool

Our free Australian invoice generator builds an ATO-compliant tax invoice in the browser and downloads a PDF: no signup, no watermark, no ads, no limit, and nothing you type leaves your browser.

Pros

• ABN field, 10% GST and a live ATO-compliance checklist.
• Logo upload, auto totals, matching quote generator.

Cons

• It does not send, track or remind. You email the PDF yourself.
• No client list; you type details each time.

Switching cost: none. You type the invoice number, so your sequence continues (see how to number invoices). Price: free. Best for: fewer than 5 invoices a month.

3. Zoho Invoice — Best free full suite

Zoho Invoice is the closest thing to a full invoicing system for free; after 13 years as a paid tool, Zoho removed the price tag. It suits small businesses that want a client portal and expenses.

Pros

• Free forever, no invoice limit stated; apps for iOS, Android, Mac and Windows.
• Accepts credit cards, direct debit and PayPal through gateway integrations.

Cons

• Built like accounting software; more clicks per invoice.
• You configure the 10% GST rate yourself.

Switching cost: low. Import customers and items from CSV, TSV or XLS, and set the prefix and next invoice number. Price: free. Best for: outgrowing a simple app without paying.

4. Square Invoices — Best for card payments

Square Invoices gives Australian sellers unlimited invoices and estimates free, with clients paying by credit card or debit card from the invoice.

Pros

• Automatic reminders and real-time status tracking on the free plan.
• Applies GST automatically and adds "Tax Invoice" when your ABN is GST-registered.

Cons

• Online card payments cost 2.2% at the time of writing.

Switching cost: medium; Customer Directory imports a CSV, but we could not confirm a settable starting invoice number. Price: free; Plus A$30/month at the time of writing. Best for: retail, hospitality and trades on Square.

5. Bookipi — Closest like-for-like

Bookipi is the tool most like Invoice Simple: a mobile-first app with a free plan capped at 3 invoices a month and cheaper paid tiers for unlimited invoices.

Pros

• Starter is US$7.60/month at the time of writing for unlimited invoices.
• Card payment and Tap to Pay in Australia; web and mobile app stay in sync.

Cons

• Same 3-invoice free cap you are leaving.
• Priced in US dollars; Australian users pay 10% GST on top.

Switching cost: low to medium; customer CSV import is web-only, and the prefix and sequence number are customisable. Price: free (3/month); paid from US$7.60/month. Best for: the same shape, cheaper.

6. PayPal Invoicing — Best if clients already use PayPal

PayPal invoicing has no monthly fee; you pay only when an invoice is paid. Clients who already have PayPal make online payments in one click.

Pros

• No subscription; invoices are managed from the PayPal mobile app.
• Scheduled reminders and recurring invoices.

Cons

• 2.90% + A$0.30 per domestic transaction at the time of writing.
• PayPal branding on the invoice; no bulk client import.

Switching cost: low for numbering (enter the next number and PayPal continues from it), higher for clients, added one by one. Price: free to send; fees on payment. Best for: international freelance work.

7. FreshBooks — Best for time tracking plus invoicing

FreshBooks is paid invoicing and light accounting software with time tracking, expenses and reports, priced in AUD.

Pros

• Client CSV import; set any invoice number and it increments from there.
• iOS and Android apps; 30-day trial.

Cons

• No free plan. At the time of writing Lite is A$29/month for 5 clients, Plus A$43 for 50, Premium A$60 unlimited.
• FreshBooks branding on client emails unless you are on Select.

Switching cost: low. Price: from A$29/month. Best for: hourly billers who need the books done too.

8. Invoice2go — Paid mobile-first app

Invoice2go was bought by Bill.com in 2021 but is still sold as a standalone product with AUD pricing.

Pros

• Priced in AUD; 30-day money-back guarantee.
• Imports clients and items from QuickBooks; lets you set the document number.

Cons

• No free plan, and the trial needs a credit card.
• Starter is capped at 30 invoices a year, Professional at 100.

Switching cost: low. Price: paid plans only; check current AUD pricing. Best for: more polish, not a lower bill.

When NOT to use InvoiceSonic or a free generator

Payroll or BAS from the same system: Xero or MYOB. Job scheduling for crews: Tradify or ServiceM8. Inventory and a bank feed: QuickBooks Online or Zoho Books. A free invoicing tool is right until invoices are the smallest part of your admin.

What to look for in an Invoice Simple alternative

• No invoice cap and no watermark. The 3-a-month limit is why you are here.
• ATO tax invoice fields. "Tax invoice", seller identity and ABN, date, description of items, GST amount, and buyer identity for sales of $1,000 or more. See how to write an invoice.
• Client import and editable numbering. A CSV import saves an afternoon of retyping.
• Transaction fees. A free plan that takes 2.2% to 2.9% of every card payment is not free.
• Works on a mobile device.

Which one should you choose?

• Fewer than 5 invoices a month, no tracking → the free invoice generator.
• 5 to 50 a month, want reminders, no subscription → InvoiceSonic.
• Clients pay by card and you use Square → Square Invoices.
• Need a client portal and expenses free → Zoho Invoice.
• Bill by the hour and need the books done → FreshBooks.

Frequently asked questions