Works in Safari — no App Store download, no subscription.
Send a Fax Now
Tap to upload your document
PDF, JPG, PNG, TIFF, or HEIC · Max 20 pages
The problem
You need to send a fax from your iPhone. Every fax app in the App Store wants a monthly subscription, and most require you to set up an account before you can even test it.
The fix
Open FaxTh.is in Safari on your iPhone, tap to upload from your camera roll or Files app, enter the fax number, and pay. Done.