How to Fax Free From an iPhone
An iPhone already scans paper and signs a PDF for free — the only missing piece is the phone line. The App Store is full of fax apps marked free, but that usually means free to install and pay-per-page to send, often after a single starter credit. You can skip the app entirely: Send FAX Mail runs in Safari on a 7-day free trial with no card. This page covers the genuinely free iPhone tools for preparing a fax, the truth behind "free" App Store fax apps, and how to send your first pages without paying.
The free part of faxing from an iPhone is the preparation, not the transmission. The Notes and Files scanner deskews a paper page into a clean PDF for nothing, and Markup signs it with a finger at no cost — both ship with iOS. What is never quite free is the dial: a fax has to cross the phone network, and that line costs someone money. App Store fax apps disguise this with a "free" label that means free to download, then meter pages through in-app purchases after a tiny starter credit. The browser route, which is how Send FAX Mail works, hands you a no-card trial in Safari so you can send a few real pages before deciding anything.
Your free options, compared
| Option | What's free | Card to start? | When you pay |
|---|---|---|---|
| Built-in iOS tools (Notes / Files scanner + Markup) | Scanning paper to a sharp PDF and signing it — fully free, but these only prepare the document, they do not send it | No card | Never for these tools; you still need a separate service to dial the fax |
| App Store fax apps (free download, paid pages) | A starter credit good for a page or two after you install | No card | Each page past the starter credit is an in-app purchase, usually sold in credit packs |
| Send FAX Mail in Safari (7-day free trial) | Send real faxes from the browser for seven days with no install and no card, after verifying your email | No card | Convert to a paid plan from $12.99/month when the trial ends or you want a dedicated number |
How to send it free
- 1Open Notes or the Files app, tap the scan icon, and capture the document — iOS squares the edges and saves it as a clean PDF for free
- 2If it needs a signature, open the PDF in Markup, sign with a finger, and save
- 3Skip the App Store fax apps and their starter credits — open Send FAX Mail in Safari and verify your email instead
- 4Use the share sheet to hand the scanned PDF to the upload form, then enter the recipient's fax number
- 5Send and watch for the emailed delivery receipt confirming the receiving machine answered
What Send FAX Mail actually offers
On an iPhone you do not need an app to fax — Send FAX Mail opens in Safari, so there is no install and no credit card to begin a 7-day free trial. Scan the page with Notes, sign it in Markup if needed, then sign in, verify your email, hand the PDF to the upload form through the share sheet, and send it over a real fax connection with no ad on the cover. We are straight about the limits: the trial runs seven days with a small per-send page cap, and after that a paid plan from $12.99/month adds a dedicated number and inbound faxes. The iOS scanning tools cost nothing to use; the dialing is what the plan eventually covers.
Free Fax From iPhone — FAQ
Yes. The scanning and signing tools you need are already in iOS, and the sending happens in Safari through Send FAX Mail, so no App Store fax app is required to get a page out the door.
Rarely. The store label covers the download; sending is metered through in-app purchases once the small starter credit runs out, so a couple of pages can cost more than you expect.
Scanning paper into a deskewed PDF in Notes or Files and signing it in Markup are both free and built in. Those steps prepare a fax-ready document; only the transmission across the phone line eventually involves a cost.
That happens when you fax a raw camera photo instead of a scan. A fax is one-bit black-and-white, so a tilted color shot turns muddy — recapture the page with the Notes scanner, which squares it and raises contrast.
Try faxing without a card
Start a 7-day free trial — no credit card to begin. Plans from $12.99/month when you're ready for a dedicated number.
7-day free trial · No credit card required