How to send a fax from your phone

Your phone can't dial a fax machine by itself, but with an online fax service it can send a real fax in a couple of minutes, with the camera as your scanner.

FastFax lets you send a fax online from your phone or computer for as little as 2¢ a page, with no subscription. US fax numbers only, up to 100 pages per fax.

The short version

1. Open fastfax.app on your phone.
2. Scan the paper with your camera, or upload a PDF or photo.
3. Type the US fax number.
4. Tap Send and wait for Delivered.

Step-by-step guides: iPhone · Android.

Why a phone works well for faxing

Most faxes today are a few pages of paper: a signed form, an ID copy, a doctor's note. Your phone camera is already a good scanner. FastFax detects the page outline, straightens it, and converts it to high-contrast black and white so it prints clearly on a fax machine. You see a preview of every page before anything is sent.

Can I just call the fax number?

No. Calling a fax number from your phone only gets you the fax tones. Fax machines speak a special protocol, so the document has to be sent by a fax service, which is what FastFax does for you.

What about texting or emailing to a fax?

Some services let you email a fax number. FastFax keeps it simpler: everything happens on one web page, and you get a status screen and a confirmation PDF instead of waiting on a reply email.

What it costs

From 2¢ a page with the 1,000-page pack, or $2.97 for 3 pages if you just need one fax. No subscription and no charge for faxes that fail.

Questions