Best Phone Fax App: Top 7 Mobile Faxing Apps Reviewed

Best Phone Fax App: Top 7 Mobile Faxing Solutions Reviewed

The best phone fax app overall is Municorn Fax App, providing top-rated document transmission, an integrated OCR scanner, and affordable flat-rate plans across iOS and Android. Mobile fax apps convert smartphones into portable, secure digital fax machines, eliminating traditional landlines, expensive physical machines, and outdated paper maintenance.

App Name Best For Supported Platforms App Store Rating Starting Price Security / Compliance
Municorn Fax App Best Overall Value & Performance iOS, Android 4.8 / 5.0 (iOS) | 4.3 / 5.0 (Android) Free Trial / Cheap Subscription TLS Encryption & High Security
Fax.Plus Enterprise & HIPAA Compliance iOS, Android, Web 4.8 / 5.0 Free Tier (10 pages) / $6.99/mo HIPAA, Swiss AES-256, TLS 1.3
iFax Cross-Device Sync & Multi-Platform iOS, Android, macOS, Windows 4.6 / 5.0 (iOS) | 4.8 / 5.0 (Android) 7-Day Free Trial / $9.99/mo HIPAA, GLBA, GDPR Compliant
Easy Fax Budget / Ad-Supported Faxing Android 4.3 / 5.0 Pay-Per-Page / Free via Ads Standard SSL Encryption
MyFax Dedicated Fax Number Porting iOS, Android, Web 4.1 / 5.0 $12.00/mo Standard Cloud Encryption
MetroFax High-Volume Small Business Faxing iOS, Android, Web 4.2 / 5.0 $11.95/mo (500 pages) 128-Bit TLS Encryption
eFax Large File Transfers & Corporate Use iOS, Android, Web 4.0 / 5.0 $18.99/mo HIPAA Compliant, AES 256-Bit

1. Municorn Fax App – Best Phone Fax App Overall

BLUF: Municorn Fax App is the premier choice for user experience, offering unmatched scanning quality, affordable unlimited sending plans, and exceptional ratings on both Apple App Store (4.8/5) and Google Play (4.3/5).

Municorn Fax App transforms your mobile device into a feature-rich, high-speed mobile fax office, streamlining scanning, signing, and dispatching multi-page paper files directly from your phone camera or cloud storage.

Key Features & Capabilities

  • Advanced Camera Scanner: Detects page boundaries, corrects perspective distortion, and sharpens contrast for clean output.
  • Broad File Support: Send and receive PDF, DOC, DOCX, JPG, PNG, TIFF, and HTML files without conversion errors.
  • Global Delivery Coverage: Send secure faxes to local or international numbers in over 90 countries.
  • Dedicated Inbound Number: Receive faxes with a private local or international incoming number.
  • Cloud Integration: Upload files from Google Drive, Dropbox, iCloud, or local phone memory.

Pros

  • Highest customer satisfaction ratings across mobile app marketplaces with over 1,000,000+ active downloads.
  • Transparent pricing model with cost-effective unlimited subscription options for high-frequency senders.
  • Zero hardware requirements—eliminates landlines, ink cartridges, toner, and paper clutter.

Cons

  • Requires an active internet connection to complete document transmissions.
  • Full access to dedicated inbound fax numbers requires an active ongoing subscription.

2. Fax.Plus – Best for Enterprise Security & HIPAA Compliance

BLUF: Fax.Plus delivers maximum data protection with enterprise-grade encryption and strict HIPAA compliance, making it the top secure cloud-faxing solution for healthcare, legal, and financial industries.

Fax.Plus serves over 5,000,000 users globally, focusing on privacy standards, corporate system integration, and cross-platform flexibility, adhering to Swiss data privacy regulations alongside international security frameworks.

Key Features & Capabilities

  • High Encryption Standards: Secures data using TLS 1.3 protocol alongside 256-bit AES idle encryption.
  • HIPAA Compliance: Offers signed Business Associate Agreements (BAA) for healthcare entities.
  • Email-to-Fax: Send faxes directly from Gmail or Outlook by typing the target number into the address field.
  • Google Workspace & Slack Integrations: Dispatch faxes straight from Google Docs, Sheets, or messaging pipelines.

Pros

  • Free plan tier includes 10 total free pages to test outbound quality without credit card details.
  • Supports continuous number porting from conventional phone carriers in 48+ countries.

Cons

  • Unused plan page allocations do not roll over to subsequent monthly billing cycles.
  • HIPAA compliance features are restricted to higher-tier Enterprise plans.

3. iFax – Best for Multi-Platform Synchronization

BLUF: iFax provides seamless cloud sync across iOS, Android, macOS, and Windows, offering built-in electronic signature tools and compliance features for remote professionals.

iFax has recorded over 2,000,000 mobile downloads, prioritizing cross-device accessibility so a fax initiated on an iPhone can be reviewed or resent from an Android tablet or desktop browser instantly.

Key Features & Capabilities

  • 256-Bit SSL Security: Full regulatory compliance supporting HIPAA, GLBA, and GDPR guidelines.
  • In-App OCR Scanner: Converts scanned paper documents into editable digital text files.
  • Custom Fax Cover Sheets: Customizable templates for corporate, medical, and legal transmissions.
  • Multi-Platform Apps: Native software for iOS, iPadOS, Android, macOS, and Windows.

Pros

  • Includes a 7-day free trial period allowing users to claim a local incoming number risk-free.
  • Supports instant document annotation, markup, and corporate stamp placement inside the mobile view.

Cons

  • Subscription tiers cost slightly more per month than simple pay-as-you-go credit models.
  • Some users note unexpected auto-renewal charges if trials are not cancelled manually.

4. Easy Fax – Best Free Mobile Fax App Option for Android

BLUF: Easy Fax is an economical free mobile fax app for Android that lets budget-conscious users earn delivery credits by watching short promotional ads or completing simple tasks.

Designed strictly for Android, Easy Fax eliminates mandatory monthly subscriptions, catering to casual users who only need to transmit an occasional form or invoice once or twice a year.

Key Features & Capabilities

  • Ad-Based Credit System: Earn free transmission credits by viewing short video advertisements.
  • Cloud Drive Connectivity: Pull documents directly from Google Drive, Dropbox, and cloud folders.
  • PDF & Image Converter: Converts gallery images (JPG, PNG) into clean PDF attachments automatically.
  • No Subscription Requirement: Pay per page sent or use accrued ad-reward credits.

Pros

  • Ideal low-cost entry solution for students or occasional senders who refuse recurring billing.
  • Small app download size that consumes minimal internal storage on Android smartphones.

Cons

  • Exclusively available on Android; lacks a dedicated app for iOS or desktop platforms.
  • Does not support incoming faxes or dedicated local phone numbers.

5. MyFax – Best for Porting & Keeping Existing Numbers

BLUF: MyFax excels in long-term identity maintenance, offering low-cost number porting and stable international line management for small business owners transitioning away from physical landlines.

MyFax targets users who already possess a published commercial fax number and wish to retain that line without paying traditional telephone company monthly fees.

Key Features & Capabilities

  • Hassle-Free Line Porting: Transfer existing landline fax numbers into the cloud with minimal downtime.
  • Multi-Recipient Broadcasts: Dispatch a single document batch to up to 50 separate fax numbers simultaneously.
  • Email Notification Alerts: Receive incoming faxes delivered to up to 5 individual email inboxes as PDF attachments.
  • International Carrier Routing: Delivers documents reliably across international telco networks.

Pros

  • Reliable carrier network ensures high delivery rates even on poor international phone connections.
  • Includes generous monthly page allowances for both inbound and outbound messaging.

Cons

  • App interface design feels slightly dated compared to modern competitors like Municorn Fax App.
  • Overage page charges kick in quickly once baseline monthly caps are exceeded.

6. MetroFax – Best for High-Volume Small Business Faxing

BLUF: MetroFax delivers exceptional bulk-page values, providing generous monthly allowances that make it ideal for document-heavy operational small businesses.

MetroFax combines high-capacity transmission limits with robust mobile applications for both iOS and Android, handling complex, multi-page contracts without clogging or timing out.

Key Features & Capabilities

  • High Monthly Page Caps: Entry-level plans start with high limits (up to 500 pooled pages for incoming and outgoing files).
  • Automatic Transmission Retries: Retries failed dispatches automatically if the receiving line is busy.
  • Centralized Online Archive: Stores sent and received documents in a searchable cloud repository.
  • Multi-Device Mobile Management: Track page delivery status via real-time mobile notifications.

Pros

  • Consistently low cost-per-page ratio for organizations sending heavy volume every month.
  • Allows management of multiple user lines under a unified corporate billing account.

Cons

  • Lacks advanced enterprise application integrations (such as direct Salesforce or Slack pipelines).
  • No free tier options available outside of temporary initial promotional periods.

7. eFax – Best for Large File Transfers & Enterprise Workflows

BLUF: eFax remains a legacy market leader in corporate document handling, supporting heavy file attachments up to 3GB, digital signatures, and strict legal compliance.

Serving corporate clients for decades, eFax bridges old enterprise infrastructure with modern mobile platforms, designed for legal teams, real estate brokerages, and corporate executives who deal with multi-megabyte contracts regularly.

Key Features & Capabilities

  • Large File Transfer (LFT): Send files up to 3GB in size through secure cloud links.
  • e-Sign Technology: Save digital signatures for one-tap signing on multi-page contracts.
  • High-Level Security Standards: Supports HIPAA-compliant transmission with 256-bit AES encryption.
  • Cloud Storage Sync: Syncs instantly with Dropbox, Box, Google Drive, and iCloud Drive.

Pros

  • Extremely strong corporate reputation with global phone number coverage across major nations.
  • Reliable customer support channels available 24/7 via phone, web, and app messaging.

Cons

  • Significantly higher monthly cost compared to competitors like Municorn Fax App or Fax.Plus.
  • Account cancellation process can require direct customer representative communication.

Key Features to Look for in a Mobile Fax App

Selecting the best phone fax app requires evaluating a few key categories: high-resolution document scanning (machine vision that detects paper margins, removes shadows, auto-crops borders, and boosts contrast for legible output); robust encryption and security compliance (at least 128-bit or 256-bit TLS encryption, plus HIPAA compliance and signed BAAs for healthcare use); flexible pricing models, typically flat subscriptions for regular senders (e.g., Municorn Fax App), pay-as-you-go credit packs for casual users (e.g., Easy Fax), or ad-supported free faxing; and dedicated inbound number availability, with local area codes, toll-free lines, or international numbers from over 40+ countries.

How Mobile Fax Apps Work

Mobile faxing bypasses analog telephone lines through Fax over IP (FoIP) technology: the app converts your document into a raster graphic file (typically TIFF or flattened PDF), uploads it via encrypted SSL/TLS to cloud telephony servers, which dial the destination machine over standard telephone networks and translate the data into analog tones (T.30/T.38) expected by legacy fax hardware, then confirm delivery with a receipt code.

How We Ranked the Best Phone Fax Apps

We evaluated the top 15 mobile fax apps on the Apple App Store and Google Play Store against core metrics: transmission reliability, camera scanning OCR precision, pricing transparency, security protocols (TLS/AES/HIPAA), and real-world user feedback across app stores and Reddit.

FAQ

Can I send a fax through my phone for free?

Yes, using apps that offer initial free trial periods, free bonus credits, or ad-supported sending models. While permanent high-volume sending typically requires a paid subscription, casual users can utilize free trial options or credit-based apps to dispatch single-page emergency documents without spending money.

What is the best free online fax service?

The best mobile solutions providing free functionality include Fax.Plus (10 standard free pages upon account creation) and Easy Fax for Android (earn sending credits by watching promotional advertisements). For regular use, apps like Municorn Fax App offer free trial access to test full-feature scanning before subscribing.

Is there a free fax app for iPhone?

Yes, several top-rated best fax apps for iPhone are free to download on the Apple App Store, including Municorn Fax App, Fax.Plus, and iFax. These apps let you scan documents with your iPhone camera and send test pages for free via introductory trial periods or page credits before committing to a paid plan.