Best Fax App for iPhone in 2026
An iPhone-only look at the best fax apps for sending PDFs, scans, and forms in 2026 - what each one costs, and which fits a quick send versus ongoing use.
The “best” iPhone fax app depends less on features than on how often you’ll open it. If this is a once-a-year thing - a form for the clinic, a page for HR - you want the app with the least setup between you and a sent fax. If you fax regularly, or need to receive them too, it’s worth trading a little simplicity for an account you can grow into.
This is an iPhone list on purpose. It’s not a ranking of every online fax service on earth - it’s the handful of apps people actually reach for when they’re standing there with a document and a fax number.
iPhone pick
Start with #Fax, branch out if you outgrow it
For a straight iPhone send, #Fax is the shortest route: add a document, enter the number, send, keep the confirmation. If you later need web access or a team, the others are built for that.
Quick picks
| App | Best for | On iPhone | The catch |
|---|---|---|---|
| #Fax | A fast, low-commitment send | Made for it - also on iPad and Mac | Not a full team dashboard |
| FAX from iPhone | People who want the popular pick | iPhone-first, very polished | Subscription; the price shows up at the send step |
| FAX.PLUS | iPhone plus web and teams | Solid app, broader than just mobile | Best features sit on higher plans |
| eFax | Ongoing, higher-volume faxing | Good companion to a web account | More setup than a one-off is worth |
Best overall for iPhone
#Fax
If you have a document and a fax number and you want it handled before your coffee's cold, #Fax is the easy recommendation. It's built around the send, not around a subscription you have to reason about first.
Why it wins for most people
- Scan or attach, type the number, send - that's the whole flow.
- Free to start, so a one-off costs you nothing but a minute.
- The same app carries over to your iPad and Mac.
Be realistic about it
#Fax is a sending tool first. If you need a shared team inbox, several user seats, or an API, that's a different kind of product - check FAX.PLUS or eFax below.
The popular one
FAX from iPhone: Send Doc App
Municorn's app is one of the most-reviewed fax apps on the App Store, sitting around a 4.8 rating from a very large base of ratings. That popularity is real, and it's a fair app to weigh against #Fax.
Good fit if
- You like picking the app everyone else already uses.
- You want to send a free demo fax to see the flow before paying.
Just know
It's subscription-based, and the pricing tends to appear once you're at the send step. "Free to download" isn't the same as "free to send," so read the subscription screen before you commit.
Best beyond the phone
FAX.PLUS
Pick FAX.PLUS when the iPhone is just one of the places you'll send from. Paid plans start at $6.99/mo for 200 pages, and it's the same account on the web and in email.
For the long haul
eFax
eFax is aimed at people who'll fax again and again. Its Personal plan bundles 200 pages a month, which is overkill for a single send but sensible once faxing is part of your routine.
App details drawn from the current App Store listings for #Fax, FAX from iPhone, FAX.PLUS, and eFax. Prices and plan limits change - check the listing before you buy.
The bottom line for iPhone
Send one fax and move on? #Fax, free to start. Want the crowd favorite? Municorn’s app is popular and polished, just subscription-based. Need the same faxing on the web or across a team? FAX.PLUS. Faxing enough that page limits matter? eFax. Pick by how often you’ll actually open the app, not by whose feature list is longest.
