Invoice App for Freelancers

Bill the project while the value is still obvious.

Freelance invoices rarely follow one pattern. One client pays a deposit, another is billed by the hour, and a retainer needs the same invoice every month — across multiple clients, in more than one currency. InvoiceSonic is the invoice app freelancers use to keep those jobs in one focused mobile app: invoice as soon as work is delivered, see what is still unpaid, and get paid without a payment processor taking a cut. Start with a free plan and no signup for the first invoice.

Project fees, retainers and hourly work · Free plan · Mobile and web · No cut of your payments

Built for independent work — Save each client once, show the scope clearly, credit deposits already paid and put a real payment date on every balance. The invoice creation takes a couple of minutes; the follow-up is automatic.

Create your invoice here — free

Enter the actual job details, review the totals and preview your invoice. You can start without an account. Downloads follow the free-tool limits; saving, tracked sending and reminders are available with an account.

Create your invoice online

Your business
Bill to (client)
Invoice details
Line items
Description Qty Unit price Tax %
Totals
Payment details
Notes
Open interactive editor

What you get

Project and hourly billing

Invoice a fixed milestone, day rate, tracked hours or a mix of deliverables and reimbursable costs. Each line item shows the client exactly what triggered the charge.

Deposits shown clearly

Record an upfront payment so the invoice explains the full project value and the exact balance remaining. Clients see one number to pay.

Multiple clients, one client list

Unlimited clients with their own saved details, invoice history and payment status — the next invoice for any of them starts from the record, not from scratch.

Professional invoices from a mobile app

Send a branded PDF that identifies the work, period, amount, due date and payment method. Create it on iPhone, iPad or in any browser, and it looks the same to the client either way.

Online payments without the processor's cut

Put bank transfer, PayID, Venmo, Zelle, Cash App or PayPal on the invoice. Clients who want to pay with credit cards use those apps; InvoiceSonic takes no percentage, which on a freelance income can be the difference of $1,000+ a year.

Recurring retainers

Set a weekly, monthly or custom schedule for clients who pay the same ongoing fee, and unlimited invoices on Pro so volume is never the limit.

Automatic payment reminders

Late payments strain freelance cash flow more than anything else. Schedule a polite follow-up so protecting the client relationship does not mean ignoring an overdue invoice.

Works for small businesses too

Sole traders and small business owners who bill clients the same way — projects, hours, retainers — use the same invoice generation flow. Nothing here is freelancer-only; it is simply built for people who do the work and the billing.

What it doesn't do — on purpose

No time tracking, project management tools or client portal. InvoiceSonic is the billing layer; it sits happily next to whatever you use to run the work.

How it works

  1. 1

    Match the invoice to the agreement

    Use the same project name, milestone, hourly period or retainer description the client approved, and the same invoice number sequence for every client.

  2. 2

    Show the balance and payment route

    Apply any deposit or discount, choose when it is due and include the bank or payment details the client needs.

  3. 3

    Send and monitor

    Deliver the PDF immediately, then track the status and follow up from the same account — on your phone or at the desk.

Invoice your latest project

Create the invoice now, add the way you want to be paid and send it while the work is fresh.

Create a freelancer invoice

Frequently asked questions

What should a freelancer invoice app include?

It should support fixed fees and hourly work, deposits, multiple clients with saved details, professional PDFs, clear deadlines, online payments and payment reminders for overdue invoices. Recurring invoices are especially useful for retainers. A user-friendly interface on a phone matters more than extra features you will not use.

How does it compare with Invoice Ninja, Zoho Invoice or Bonsai?

Invoice Ninja is open source with a capable free tier and more setup. Zoho Invoice is a great option if you want the largest free tier and the Zoho ecosystem. Bonsai bundles contracts and proposals at a subscription price. InvoiceSonic is the lighter invoicing software option: no-signup first invoice, native iPhone app and no percentage taken on payments.

Can freelancers create invoices without a company?

Yes. A freelancer can generally invoice under their own legal name or registered business name. Include the tax or business identifiers required where you operate, and check local registration rules.

Can I invoice a monthly retainer automatically?

Yes. InvoiceSonic Pro can create and send recurring invoices on a weekly, fortnightly, monthly or custom schedule.

Does the app support deposits?

Yes. Show the agreed project total and credit the deposit already received so the client sees a clear remaining balance.

Is there a free plan for freelancers?

Yes. You can create and download the first invoice without signup, and the free tier covers up to three invoices per month. Upgrade to Pro (A$19/month) for unlimited invoices, recurring billing and automatic reminders.