The best app to send a fax from a phone is one that combines strong security, reliable delivery, and seamless mobile and desktop access. With so many modern fax apps available, faxing has never been more accessible.
Below is a list of the best fax apps for 2026, each offering unique features and solutions for fast, easy, and secure faxing.
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What We Looked for When Ranking Fax Apps
We’ve reviewed and ranked the top-rated fax apps based on these key categories:
How well it works
Performance matters. We’ve taken a closer look at each app’s features, reliability, and level of security. The best fax apps make mobile faxing seamless.
User-friendliness
How intuitive and easy each app is to navigate, ensuring a smooth and effortless experience for users of all skill levels.
Value for money
Is the fax app truly free, and does it offer free trials or pay-as-you-go options? Which fax app is best for business and secure faxing?
Support availability
If the app fails to fax a document, we looked into how quickly support responds and how users can reach help, including email, phone, chat, and even troubleshooting guides.
Real user feedback
Nothing reflects a fax app’s performance better than actual user ratings and reviews.
The Best Fax Apps Compared
iFax | Fax.xyz | Smart Fax | Simple Fax | FaxFlow | |
Performance | Reliable, enterprise-grade mobile fax | Stable online faxing from phone | Basic, ideal for light use | Simple one-off faxing | Fast, mobile-optimized |
Ease of Use | Very easy, feature-rich | Simple onboarding | Minimal UI | Extremely simple | Intuitive, clean interface |
Pricing | Free download, paid plans start at $24.99/mo | Free download, paid plans start at $8.33/mo | Free download, Premium subscription costs $79.99/year | Free download, ad-supported, paid plans start at $3.99/mo | Free with size and page limits, paid plans start at $9.99/week |
Support | 24/7 live chat, email, phone | 24/7 basic and premium support | Basic support (email) | Basic email support, FAQs | 24/7 support, Help Center |
Android/iOS | iOS, Android, web | iOS, Android, web | iOS, Android | iOS, Android | iOS, Android, web |
Best Fax App for iPhone and Android Users
If it’s secure, HIPAA-compliant, and convenient phone faxing you need, iFax’s mobile-ready apps let you send, receive, and manage faxes with cloud sync, document scanning, and real-time fax status tracking.
iFax has the best fax apps for iPhone and Android, offering effortless faxing from anywhere to any local or international fax number. Whether you’re faxing on mobile or desktop, its intuitive app interface simplifies the process, from document scanning to secure transmissions and delivery tracking.
With a 9.5 Ease of Use Rating on G2, users can rely on its 24/7 human support via email, phone, and live chat to quickly resolve issues and request expert assistance.
Its mobile fax apps are all free to download from the App Store and the Play Store. iFax offers monthly and yearly plans starting at $12.49/month. Volume-based discounts are also available for businesses looking to send HIPAA-compliant faxes.
See also: Best fax apps for Android
Best Free Fax App with Easy Device Access
Fax.xyz
Faxing for free using an app you can quickly install on any phone, tablet, or desktop, without complicated setup, is what Fax.xyz does best.
Fax.xyz lets you fax PDFs, DOCX, and other file formats, wherein each fax includes its own smart cover page for secure sending. Upon signing up, users get instant access to all core features without restrictions. It also has an integrated scanner that uses your phone’s camera to capture, enhance, and convert documents into high-quality faxes.
Like iFax, Fax.xyz provides unmatched support to its users with 24/7 availability. Whether you need help with international fax setup or any troubleshooting, you can request expert help anytime.
What’s more, you’re free to test its apps before committing to any paid plan. Pricing for its paid plans starts at $8.33/month (billed annually). It has dedicated fax apps for Android, iOS, Windows, and Mac, all of which you can download for free without paying any setup fees.
Best for Easy Faxing on iPad
Smart Fax
Designed for iPad and iPhone devices, this fax app lets you fax to any number without intrusive ads popping up, and is free to download and use with instant access to all its basic functions.
Functionality-wise, Smart Fax performs all the basic things you need from a fax application. It can scan any paper document (e.g., invoices, billing statements) and convert it to a fax-ready file you can send to any local or international fax number.
The app’s iOS interface is very straightforward. Navigating its core features and settings is a breeze. Still, if you need more advanced faxing options, such as blast faxing or email integration, it’s best to consider other fax applications.
Smart Fax app’s 1-year Premium subscription starts at $79.99 and requires iOS 16 or later.
Best for Basic Mobile Faxing
Simple Fax
As its name suggests, this app offers a simple way to fax documents without a fax machine. Using only your phone, you can send and receive faxes, with the option to watch ads for fax credit.
Simple Fax is an ad-supported fax app that’s ideal for basic faxing tasks. The convenience it offers gives you the freedom to use your Android or iPhone as a portable fax machine that works over cellular data or Wi-Fi.
User support is available via email should you encounter any usage problems. The app also has a dedicated FAQs section, readily accessible via its main menu, complete with guides on how to send a fax to numbers in the United States, Canada, and other countries such as the United Kingdom and Japan.
In addition to its free fax credits, Simple Fax offers four paid subscriptions, ranging from $3.99/month to $39.99/year. To receive faxes, you need a specific number of credits, which usually varies by country or region.
Best for Quick Faxing
FaxFlow
Instead of going to a FedEx or Staples office, FaxFlow lets you send a fax from your phone, scan documents, and convert them into fax-ready formats in just a snap.
FaxFlow supports multiple languages with a clean, straightforward mobile interface. Faxing starts with the app prompting you to sign in with your account.
Sending a fax is as simple as entering the recipient’s fax number, adding a cover letter, and attaching files. While the fax app lets you save faxes as drafts, there’s no option to schedule them for later. The fax app has a file size limit of up to 50MB and a limit of up to 350 pages per fax.
Support is available directly within the app via email, but there’s no option for 24/7 expert help via live chat or other messaging channels. It does have a dedicated FAQs section with basic guides on fax sending and receiving faxes.
FaxFlow pricing starts at $9.99 for a weekly plan that only allows sending faxes. Users can upgrade to higher tiers, such as the Annual plan for $199.99, which includes sending and receiving faxes and VIP support.
Frequently Asked Questions
How to successfully fax with an app
To successfully fax using an app, you typically start by installing a mobile fax application, creating an account, and preparing the document you want to send. These apps convert your file to a digital fax format and transmit it securely over the internet, rather than relying on a traditional fax machine.
Success depends on a few key factors. It’s crucial to ensure your document is clear and properly formatted, ideally in PDF format. Also, confirm that the recipient fax number is correct, including any country or area codes. A stable internet connection also helps avoid transmission errors or delays. Once sent, most apps provide a delivery confirmation or status report so you can verify whether the fax was successfully delivered.
The best fax apps, like iFax, also offer tracking features that help users confirm successful delivery.
What are the best cell phone apps to fax documents?
The best cell phone fax apps offer strong security, reliable delivery, and seamless usability. These apps typically include a built-in document scanner, direct cloud storage access, and the ability to send faxes directly from any phone without physical hardware.
iFax, for example, offers cross-platform accessibility and team collaboration features and is widely used in business environments for its email-to-fax capability and established reliability. The best phone fax apps are preferred because they combine convenience with strong document-handling features suitable for both personal and professional use.
What are good phone apps for securely faxing documents?
The best mobile fax apps for sending documents prioritize data protection during both transmission and storage. Businesses and organizations in regulated industries such as healthcare and legal use these apps to fax documents where confidentiality and compliance are critical requirements.
Secure fax apps typically rely on encrypted transmission channels and secure cloud infrastructure to protect sensitive documents. Many also include compliance support, such as HIPAA compliance readiness, user access controls, and audit logs to track document activity. iFax and Fax.xyz, for example, are widely adopted for their combination of strong security standards and dependable mobile faxing capabilities.
The Best Fax App for Your Business
When it comes to fax apps, the best choice depends on your unique fax workflows, including how often you send documents, the level of security required, and whether you need integrations with your existing business tools.
iFax’s dedicated fax apps for iPhone, Android, Mac, and Windows enable secure, cross-platform mobile faxing across all your devices.
