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Business · On Google PlaySend the invoice before you leave the driveway.
Simple Invoice & Estimate turns a finished job into a branded PDF invoice in about two minutes — line items, your tax rate, your logo, your numbering. Estimates convert to invoices in one tap, and the whole thing works with no account and no signal.
Invoice from the driveway.
Simple Invoice & Estimate: a branded PDF invoice in two minutes, offline, no account. Estimates convert in one tap. Free plan on Android.
What Simple Invoice does.
Everything you need to bill a job properly, and nothing you would have to learn first.
Invoices in minutes
Line items with quantity times rate, tax and totals worked out for you, discounts, notes and payment terms — plus automatic numbering that follows your own prefix.
Estimates that win work
Unlimited estimates, tracked as sent, accepted or declined. One tap turns an accepted estimate into an invoice with nothing retyped.
Your branding on every page
Add your logo and business details once and every document goes out looking like it came from a company with an office.
Paid, unpaid, overdue
Mark invoices paid as the money lands, spot what is overdue at a glance, and close them out with a clean PAID stamp.
A client list that builds itself
Everyone you invoice is remembered and searchable by name or number, ready to reuse on the next job.
Share it any way you like
Send the PDF by email, by WhatsApp, or through anything else on your phone — or just save it and print it.
A look inside.

A branded PDF, ready to send

Line items, tax and totals in seconds

Paid, unpaid and overdue at a glance

Estimates that convert in one tap

Every client and document, searchable
Made for people who bill for their own work.
If you finish a job and then have to go home and build an invoice on a laptop, this is the app that gets that hour back.
Questions, answered.
Is it out yet?
Yes. Simple Invoice & Estimate is live on Google Play and free to install — the free plan covers three invoices a month plus unlimited estimates, with Pro there when you need more.
Does it work without signal?
Yes. Everything lives on the phone and nothing waits on a server, so you can raise and send an invoice from a driveway, a basement or a job site with no bars.
Do I need an account?
No. There is no sign-up and nothing to log into. You enter your business details once and start invoicing.
Can I use my own tax rate?
Yes. Set your tax once — HST, GST, VAT, state sales tax, any name and any rate — and it is applied to every document from then on.
What does it cost?
The free plan covers three invoices a month plus unlimited estimates. Pro unlocks unlimited invoices and premium PDF templates.
Where does my data live?
On your device only. No ads, no account, no cloud copy. Your invoices and clients never leave the phone unless you share a PDF yourself; the app only sends anonymous usage counts and crash reports so we can fix problems.
Is there a free invoice app for contractors?
Simple Invoice & Estimate is free to install, and the free plan covers three invoices a month plus unlimited estimates. Pro removes the cap and adds premium PDF templates. There is no per-user pricing and no subscription to use the free plan.
Can I turn an estimate into an invoice?
Yes, in one tap. An accepted estimate converts straight to an invoice with the line items, tax and client details carried across, so nothing gets retyped and nothing gets missed.
Does the invoice maker work without internet?
Yes. Everything runs on the phone, so you can build a branded PDF invoice and send it from a driveway, a basement or a job site with no signal at all.
Send the next invoice from the driveway.
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