How to Send a Fax From an iPhone: 3 Apps to Compare

You can send a fax from an iPhone through an online fax app, without a fax machine or phone line. Scan or attach your document, enter the recipient’s fax number, review the pages, and send. iFax, WeFax, and FAX.PLUS use different sign-in and payment models, so check local terms before uploading a file.

Three iPhone fax apps to compare

• iFax: This account-based app lets you start a new fax, enter a recipient, attach a document, and add an optional subject or comment. It has in-app purchases; pricing varies by region and subscription length. See the iFax sending guide and iFax App Store listing.
• WeFax: The provider says no account setup or verification is required; you can scan paper or import a file. Apple lists a free download with in-app purchases, and WeFax says fax delivery is not free. Review the payment screen before sending. See WeFax’s product page and its App Store listing.
• FAX.PLUS: Its iPhone workflow supports scanning or attaching files, adding a cover sheet, ordering pages, and checking a confirmation report. The service currently advertises 10 outgoing pages total on its free plan; limits and prices can change. Compare the current FAX.PLUS pricing and App Store listing before choosing it.

These are options to compare, not a ranking. Availability, introductory offers, page allowances, and international rates vary by region.

How to send a fax from your iPhone

1. Scan or prepare the document

Scan paper in the fax app or use Apple’s scanner in Notes or Files: choose Scan Documents, frame the page, adjust the crop, and save the PDF. Follow Apple’s iPhone and iPad scanning guide covers the current steps. Use even light and check that every page and signature is legible.

2. Choose an app and attach the file

Install an app and open its send-fax screen. Sign in if required; WeFax advertises a no-account option. Scan a page or attach the PDF from Files, iCloud Drive, or another supported location. Look for controls such as Scan, Add file, or Attach. Arrange multiple documents in the intended page order.

3. Enter the recipient’s fax number

Copy the fax number from the recipient’s current form or official instructions; it may differ from the office phone number. For an international destination, include the country code as the app requests. A cover sheet can help route a fax to a shared office line, but include only the details needed.

4. Review, send, and confirm delivery

Preview the pages for order, orientation, and readability. Check page limits and any fee or subscription notice before tapping Send. Then look for a status report or confirmation email and keep it until the recipient confirms receipt. If the fax fails, check its final status before retrying to avoid a duplicate.

The phone screens shown here are generic examples. Buttons and layouts differ among fax apps and iOS versions.

Check cost and privacy before sending

A free download may still charge for sending. Check whether you pay by page, credit, destination, or subscription, and whether a cover page uses part of the allowance. Confirm the renewal date of any trial; for a one-time fax, compare the total cost before entering payment details.

Fax apps process documents through an online service, so avoid uploading sensitive records to an app you have not approved. For electronic protected health information handled on behalf of a healthcare organization, HHS says the organization generally needs an appropriate business associate agreement with the service provider and must meet the applicable HIPAA requirements. A marketing statement that a fax app is “HIPAA compliant” alone does not confirm that your specific account, plan, and workflow are covered. Follow your organization’s approved process and see HHS guidance on HIPAA and cloud services.

If the fax does not go through

• Number error: recheck each digit and country or area code.
• Blurry scan: improve the lighting, flatten the page, and check the crop.
• File rejected: export to a supported format and check file-size and page limits.
• Busy line: wait for the final status and confirm with the recipient before retrying.

Online faxing still depends on the receiving service accepting the transmission. Keep the confirmation report for time-sensitive documents.