The Simplest Invoice App for Sole Traders
No accountant needed. No complicated software. Just open the app, fill in the job, send the invoice.
Download Free on the App Store
Invoice from your phone
Create and send a professional PDF invoice in under 60 seconds, from anywhere.
GST auto-calculated
10% GST shown as a separate line item. ATO-compliant every time.
Your ABN on every invoice
Add your ABN, business name and logo once — it appears on every invoice automatically.
Saved customers
Save customer details once, reuse on every invoice. No re-typing.
Track paid and unpaid
See at a glance which invoices are outstanding.
Works offline
Create invoices on site with no internet connection.
Ready to Invoice Faster?
Free to start. No credit card. No signup. Just download and go.
Download on the App Store — Free to StartWhy Sole Traders Choose Drainly
60-Second Invoices
Fill in the job details and tap send — your customer gets a professional PDF before you've packed up the van. No laptop, no office, no waiting.
Built for Your Phone
Drainly is iPhone-first. Create quotes on the way to a job, invoice the moment you're done, and share the PDF directly from your pocket.
Simple Pricing
Free to start, no credit card required. Upgrade to unlimited invoices and quotes for less than the cost of one coffee a month.
How Drainly Compares
Built for sole traders, not enterprise field-service teams.
| Feature | Drainly | Jobber | Tradify | ServiceTitan |
|---|---|---|---|---|
| Monthly price | Free – $6.99 | $49+/mo | $35/mo | $169+/mo |
| Built for sole traders | ✓ | ✗ | Partial | ✗ |
| Works offline | ✓ | Partial | Partial | ✗ |
| Setup time | <1 min | ~30 min | ~30 min | Hours |
| Mobile-first | ✓ | ✗ | ✗ | ✗ |
Need scheduling, dispatch and a full CRM? Use Jobber. Want to invoice in 60 seconds and get on with the job? Use Drainly.
Frequently Asked Questions
Also useful: free templates · how to write an invoice · pricing