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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Genius Fax vs FAX for iPhone

Genius Fax 4.9★ · Free + IAP 70
Winner Genius Fax
FAX for iPhone 4.8★ · Free + IAP · ⚠ stale 45

Genius Fax is generally more reliable for sending and receiving faxes, despite some issues with spam and confirmation reports, while FAX for iPhone struggles with consistent delivery and customer support.

Genius Fax offers a more user-friendly and reliable experience for sending and receiving faxes, though some users report issues with spam and confirmation documents. FAX for iPhone faces significant challenges with fax delivery, customer support, and a confusing pricing structure, making it a less dependable option.

Head to head

Features edge: Genius FaxR1R3R6R12
Genius Fax Genius Fax is praised for its convenience and ability to send and receive confidential documents from an iPhone, with some users appreciating the option to buy page credits instead of a subscription R16R30. However, some users report issues with receiving spam faxes, corrupt confirmation documents, and limitations on sending multiple pages at once R1R3R6R12.
FAX for iPhone FAX for iPhone allows users to scan, take photos of documents, and include a cover page . It offers both sending and receiving capabilities, but some users find the cover sheet functionality limited and express frustration with needing to pick a new fax number frequently for receiving faxes R79.
Ease of Use edge: Genius FaxR5R9R21R28
Genius Fax Many users find Genius Fax to be very user-friendly, easy to install, and simple to use for sending and receiving faxes R5R28. Some, however, report difficulties opening files, issues with password changes, and a lack of clarity regarding initial setup delays for receiving faxes R9R21.
FAX for iPhone FAX for iPhone is described as easy to use and set up by some, with a sleek design . Conversely, other users struggle with the app not working, getting stuck on the attachment screen, or experiencing long queuing times for faxes to send .
Reliability edge: Genius FaxR11R13R15R17
Genius Fax Genius Fax receives mixed reviews on reliability. While some users praise its timely service and consistent performance for sending and receiving faxes R11, a significant number report faxes failing to send, getting stuck in a sending state, or not being received R13R15. Issues with incoming faxes dropping pages or the fax number not working are also noted R17R43.
FAX for iPhone FAX for iPhone has substantial reliability issues. Many users report faxes not sending at all, taking forever to send, or dropping calls . Problems with receiving faxes are also common, with numbers giving busy signals or not working after a few days R67R79R118.
Price/Value edge: Genius FaxR7R10R16R19
Genius Fax Genius Fax is appreciated for its pay-per-page model, allowing users to buy credits and pay only for what they use, which is seen as economical for infrequent use R16R30. However, some users find it too expensive, especially at $0.99 per page after purchasing a number, and express frustration with credits expiring or money being taken without service R7R10R19.
FAX for iPhone FAX for iPhone's pricing is a major point of contention. While some find the weekly unlimited option reasonable , many are frustrated by the subscription-only model, especially for single or infrequent faxes . There's confusion and dissatisfaction with separate payments for sending and receiving faxes, leading to high annual costs R72. Users also report being charged after canceling free trials or without receiving service .
Support tieR17R21R43R45
Genius Fax Genius Fax users report significant issues with customer support. Many state there's no way to contact support or that messages go unanswered R21R43R45. Some mention receiving no help from developers when problems arise R17.
FAX for iPhone FAX for iPhone's support is widely criticized. Users report not receiving replies to complaints, especially when the app isn't working or after being charged incorrectly . There's a perception that developers are just collecting money without providing support .
Pick Genius Fax if

You need a fax app for occasional use and prefer paying per page rather than a subscription R30. You value a generally easy-to-use interface and reliable sending for most faxes R5R28. You are comfortable with the possibility of managing some spam faxes R1R6.

Pick FAX for iPhone if

You need to send a high volume of faxes frequently and are willing to pay a weekly or annual subscription for unlimited sending, provided it works for you .

Evidence note: Both apps have a mix of positive and negative reviews, with recent negative reviews for both skewing towards reliability and pricing issues. The 'free + IAP' model for both leads to friction, as users expect free functionality but encounter charges. Many negative reviews for FAX for iPhone specifically mention being charged after canceling free trials or for services not rendered, indicating a potential free-vs-paid asymmetry where non-paying or trial users experience significant issues.

Frequently asked

Is Genius Fax truly free to use?
Genius Fax is not truly free to send faxes; it operates on a 'Free + IAP' model where you purchase credits or a number, with some users reporting costs of $0.99 per page after buying a phone number R10R19R27R30.
Can I receive faxes with FAX for iPhone?
Yes, you can receive faxes with FAX for iPhone by paying for a dedicated fax number, but users report issues with the reliability of these numbers, including them stopping working or giving busy signals R67R72R79R118.
Do either of these apps offer good customer support?
Neither Genius Fax nor FAX for iPhone appear to offer good customer support, with users of both apps reporting difficulties contacting support or receiving no response to their issues R17R21R43R45.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R1] Genius Fax 1/5 · US All spam gets through: I have 90% spam coming through and despite reporting it the same ones get through. Useless.
  2. [R3] Genius Fax 3/5 · US Confirmation documents are corrupt: The confirmation report is always corrupted and cannot be seen. This is the most important document, besides the body of the document, to ensure confirmation that the document was received by the company in question, it is critical! Needs to be fixed!
  3. [R6] Genius Fax 3/5 · US It was working perfect but: I am receiving too many fax spams
  4. [R12] Genius Fax 3/5 · GB Easily could have been so much better: I was getting ready send first fax 6 pages but it will only let you send one Come on genius fax the more pages you can send means the more you make!!!!
  5. [R5] Genius Fax 5/5 · US Love this app!: User-friendly that’s all I have to say. It’s excellent thank you!
  6. [R9] Genius Fax 3/5 · US RECEIVED FAX: I just subscribed to Genius Fax and purchased 10 credits in order to receive 1 important fax. The fax was sent to my Genius Fax number 25 minutes ago and there is still no fax showing up. UPDATE: Fax arrived the following day. More information about a delay on using your fax number upon initial set-up would be helpful.
  7. [R21] Genius Fax 1/5 · US Once you set password there’s no way to change it: This is crazy but I at up an account with them years ago. I can still log in but the password has been compromised. Now that it is, I’d like to change my password so that someone doesn’t use my credits, account etc. but there’s literally no way to change it or even to contact support. I work in tech at one of the big tech companies so I have a pre
  8. [R28] Genius Fax 5/5 · US very easy to use: probably the best for just occasional facts
  9. [R11] Genius Fax 5/5 · US Best ever: Great and timely services
  10. [R13] Genius Fax 1/5 · US Faxes don’t go thru: Tried 3 different times with not 1 of the faxes going thru. Would not recommend as reliable app.
  11. [R15] Genius Fax 1/5 · US Sucks: Keeps failing……
  12. [R17] Genius Fax 1/5 · US Repeatedly Dropped first six pages of incoming fax: I paid to be able to transmit faxes as I needed and to receive some faxes. The outgoing faxes worked but the incoming dropped the first six pages of each fax. Wasted my money, my time, and annoyed those sending the faxes. No help was received from the developer.
  13. [R7] Genius Fax 1/5 · US Too expensive: Costly to send pages
  14. [R10] Genius Fax 1/5 · US .99 per page after purchase of #: Purchased the phone number each Fax page is $.99 each you’re better off getting a service that cost more per month with unlimited fax pages
  15. [R16] Genius Fax 5/5 · US Really handy when I needed to get a document to doctor’s office in another state fast. Efficient.: The app works well for me -- sending and receiving confidential documents at an affordable cost From my iPhone.
  16. [R19] Genius Fax 1/5 · US Looks free to send and isn’t: So again I’m disappointed with yet another fax app- don’t waste your time
  17. [R43] Genius Fax 1/5 · US The fax number doesn’t work. I cannot receive any faxes and I paid for that service!: The fax number doesn’t work. I cannot receive any faxes and I paid for that service! I have sent multiple messages and no one has responded back to me!
  18. [R45] Genius Fax 1/5 · US Didn’t provide fax number after purchase: Didn’t provide fax number after purchase. No way to contact support to resolve the issue.
  19. [R27] Genius Fax 1/5 · US Not free: Scammed after 10 minute sign up
  20. [R30] Genius Fax 5/5 · US Awesome fax app.: So many “free” fax apps are NOT actually free! I signed up for yet another app that claimed to be free, only to find out it was $8.99 a week just to send one fax. I canceled it, and they still charged my card. It turned into a whole ordeal disputing the charge, but thankfully I finally won. When I needed to send another fax, I found this app that lets you buy page credits and p
  21. [R67] FAX for iPhone 1/5 · US Don’t count on keeping your fax number: My fax number stopped working in three days. It started giving a busy signal, which is ridiculous because it’s my reserved number. I downloaded this app because I wanted to receive faxes. It is not reliable for that purpose. If you need a reliable fax number, skip this app. Don’t waste money printing the phone number on forms because the number will stop wor
  22. [R72] FAX for iPhone 3/5 · US Works great…but be aware: I purchased this app for yearly unlimited faxing but then realized I had to pay again for receiving a fax number for receiving faxes. I thought the yearly unlimited rate was for both. I advise to read all details before purchasing. It would have been better if it was more clear in the description. Oh well!
  23. [R79] FAX for iPhone 1/5 · US Worst fax app I’ve used.: Glad I am paying for a monthly subscription only to login weekly and find out I need to pick a new number EVERY TIME! That is a real time saver for when you are expecting important documents. Great app.
  24. [R118] FAX for iPhone 1/5 · US Scam: Paid and won’t let me get fax number to receive faxes

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store