Most Popular Fax App for iPhone Users 2026

iPhone users need a reliable way to send and receive faxes without a physical machine. The most popular fax app for iPhone users in 2026 combines ease of use, affordable pricing, and secure delivery. Municorn Fax App leads the market, followed by established players like eFax, Fax.Plus, and FaxFlow. Each app offers distinct pricing models—from free tier options (3–10 pages monthly) to subscription plans ($3.99–$18.99 monthly). This guide compares the top fax apps for iPhone, their features, costs, and real user ratings to help you choose the best one for your needs.

1. Municorn Fax App – Most Popular Choice for iPhone Users

Municorn Fax App is the leading fax application for iPhone users seeking an affordable, flexible solution. Operating under the brand Comfax.com, Municorn leads in market adoption for iPhone users who value weekly billing without long-term contracts.

Key Features

• Flexible Weekly Billing: Weekly plans start at $3.99 per week, with no automatic renewal required. Cancel anytime after your sending session completes.
• App Store Rating: 4.78/5 stars across 377,403+ user reviews, making it one of the highest-rated fax apps on iOS.
• No Page Limits: Unlike free-tier competitors capping users at 3–10 pages, Municorn subscribers enjoy unlimited sending within their plan period.
• Scan and Send: Built-in camera scanning with automatic edge detection. Attach PDF, JPG, PNG, Word, and Excel files directly from your iPhone.
• Dedicated Fax Number: Get a personal fax number to receive incoming faxes with instant push notifications on your iPhone.
• Cover Pages: Customize cover sheets with your name, company, and message before sending.
• Delivery Confirmation: Real-time fax status tracking—sending, delivered, or failed—with receipt storage in the app.
• Encryption: Faxes travel over dedicated phone lines; security features protect sensitive documents.
• Multi-Recipient Sending: Send the same fax to multiple recipients in one action, ideal for time-sensitive bulk communications.

Pricing Breakdown

• Weekly Plan: $3.99/week (most popular for occasional users)
• Monthly Plan: Available for regular senders needing consistency
• Annual Discounts: Pricing savings for year-round subscribers
• No Hidden Fees: Transparent billing—no per-page surcharges or surprise charges

Best For

Municorn Fax App is ideal for small business owners, freelancers, job seekers, and individuals who send faxes occasionally to frequently but refuse to pay enterprise pricing. Its weekly model beats subscription traps; users can send unlimited faxes in one week for $3.99, cancel, and pay nothing until needed again.

Pros

• Lowest cost entry for unlimited weekly sending ($3.99)
• Highest App Store rating among popular iPhone fax apps (4.78/5, 377K+ reviews)
• No page limits—send as many pages as needed within your plan period
• Flexible week-to-week billing; no annual lock-in required
• Built-in camera scanner with professional edge detection
• Dedicated fax number for receiving; real-time delivery tracking
• Instant push notifications for incoming faxes

Cons

• Billed weekly ($3.99), so multiple sends across different weeks mean multiple charges
• International faxing may carry additional per-destination fees (varies by country)
• Requires active Apple ID and iOS device—no Android equivalent under Municorn brand

How to Get Started

1. Visit Comfax.com or download Municorn Fax App from the Apple App Store.
2. Create a free account with your email and verify your mobile number.
3. Choose your weekly, monthly, or annual plan.
4. Scan a document using your iPhone camera or upload an existing file.
5. Enter the recipient's fax number, customize your cover page if desired, and tap Send.
6. Receive instant confirmation and track delivery status in real time.

2. eFax – Established Cloud-Based Fax Service

eFax is a long-standing player in online faxing, offering a dedicated iOS app with cloud storage integration. Known for enterprise reliability, eFax combines web and mobile access, making it suitable for users who manage faxes across devices.

Key Features

• Free Tier + Premium Plans: Free trial available; paid plans start at $18.99/month for ongoing business use.
• Cloud Integration: Sync faxes across iPhone, iPad, Mac, and web portal using eFax's cloud system.
• Optical Character Recognition (OCR): Automatically converts scanned documents into mobile-friendly, searchable text.
• Email-to-Fax: Forward faxes directly from your email inbox without opening the app.
• Cover Page Customization: Professional templates for business correspondence.
• Delivery Confirmation & Archive: Every fax logged with timestamps; searchable fax history stored securely.

Best For

eFax suits established businesses, legal firms, and long-term fax users who want a single platform across all devices and do not mind monthly subscriptions.

Pros

• Trusted brand with 20+ years of fax service history
• Cloud-based storage accessible from iPhone, web, and desktop
• OCR technology makes faxes searchable and mobile-readable
• Email-to-fax forwarding for seamless workflows
• Strong enterprise support and compliance features

Cons

• Monthly subscription ($18.99+) more expensive than Municorn's weekly option
• No true free tier—trial eventually requires payment
• Per-page costs can exceed other apps if heavy usage accumulates

3. Fax.Plus – Secure, HIPAA-Ready iPhone Faxing

Fax.Plus prioritizes security and compliance, achieving a 4.7-star rating (11K+ reviews) on the App Store. It is the top choice for healthcare workers, legal professionals, and anyone handling sensitive documents.

Key Features

• Free Tier: 10 free pages monthly, no trial countdown—permanent access to a free allowance each month.
• Paid Plans Start at $6.99/month for unlimited sending with dedicated fax number.
• 256-Bit AES Encryption: All faxes use military-grade encryption with unique keys per user.
• HIPAA-Ready: Business Associate Agreements (BAA) available on premium plans for healthcare and PHI faxing.
• Swiss Servers & Compliance: ISO 27001 and SOC 2 audited, GDPR compliant, hosted on Swiss infrastructure.
• Mobile Scanner: Scan documents with automatic edge detection, crop, reorder, and adjust pages before sending.
• Sign and Store: Digitally sign received faxes and archive them securely within the app.
• Email-to-Fax: Send faxes directly from your email inbox.
• Multi-Recipient: Fax to multiple recipients in one action with optional cover sheets.

Best For

Healthcare providers, attorneys, accountants, and any iPhone users handling confidential or regulated documents. HIPAA compliance makes it the go-to for medical office staff and legal professionals.

Pros

• Genuine free tier (10 pages/month) with no countdown timer or upgrade pressure
• Enterprise-grade encryption (256-bit AES)
• HIPAA-ready with available BAA for healthcare use
• Swiss-hosted servers and multiple compliance certifications (ISO 27001, SOC 2, GDPR)
• Professional interface with sign-and-store capabilities
• 4.7-star rating from 11K+ verified App Store users

Cons

• Free tier limited to 10 pages monthly—insufficient for heavy faxers
• Premium plans ($6.99+/month) more expensive than Municorn's weekly option for occasional users
• Setup and account verification required to access free pages

4. FaxFlow – User-Friendly Scanning and Delivery Confirmation

FaxFlow combines intuitive design with reliable delivery, earning a 4.8-star rating (7.3K reviews). Its strength lies in fast setup and automatic document edge detection, making it popular for users who need speed.

Key Features

• Free App + Paid Plans: Download free; weekly/monthly/annual subscriptions available (exact pricing varies).
• Automatic Edge Detection: iPhone camera automatically detects document edges, crops, and cleans scanned images without manual intervention.
• Encrypted Transit: Faxes encrypted in transit and delivered over dedicated phone lines—meeting industry standards for medical, legal, and government offices.
• Delivery Confirmation & Receipts: Every fax includes a receipt showing send time, recipient confirmation, or failure status.
• Automatic Retry: Failed sends automatically retry to ensure delivery.
• Supported File Types: PDF, JPG, PNG files; scan documents with your camera or attach from Files app.
• Cover Pages: Add customizable cover sheets with your name, number, and message.
• US, Canada, and International Coverage: Send to fax numbers worldwide; get a US fax number to receive incoming faxes.

Best For

Users who value speed and simplicity—those sending 1–5 faxes per week and willing to cancel a week's subscription after use. Also suitable for quick scanning jobs where automatic edge detection saves time.

Pros

• Automatic edge detection speeds up document scanning
• 4.8-star rating; over 500K fax pages processed via the app
• Fast setup; no lengthy account verification
• Encrypted transit and automatic retry on failed sends
• Flexible billing—weekly plans allow one-off use without annual commitment

Cons

• Pricing not prominently displayed in App Store listing; requires app launch to see current rates
• Weekly billing means multiple charges across non-consecutive weeks
• Smaller user base compared to eFax or Fax.Plus

5. FaxTerra – Lowest Per-Page Cost and Free Monthly Allowance

FaxTerra wins on affordability, offering 10 free pages monthly and the lowest per-page rate: $0.10/page in page packs. Perfect for budget-conscious, occasional faxers.

Key Features

• 10 Free Pages Monthly: Renewed on the 1st of every month whether used or not.
• Page Packs: $1.99 for 10 pages ($0.10/page), $4.99 for 30 pages, $9.99 for 100 pages—no expiration date.
• Monthly Plans: Starter plan ($4.99/month) includes a dedicated fax number for receiving.
• International Reach: Send faxes to 27 countries (less than competitors like Genius Fax's 46 destinations).
• Web and App: Use FaxTerra on iPhone app or directly from the browser—no installation required for web access.
• Rating: 5.0/5 stars (22 verified ratings) on the App Store.

Best For

One-time faxers and users sending long documents occasionally. The free 10 pages cover most single errands (IRS forms, applications, invoices). Leftover pages roll over indefinitely.

Pros

• Perfect 5.0-star rating on App Store
• Lowest per-page cost ($0.10) among major iPhone fax apps
• 10 free pages monthly—real allowance, no hidden strings
• Page packs never expire; unused balance carries forward
• Browser-based access eliminates app installation requirement
• Starter plan ($4.99/month) includes a receiving fax number

Cons

• Limited international coverage (27 countries vs. competitors' 40+)
• Smaller app user base (22 ratings) compared to market leaders
• Per-page model less convenient than unlimited weekly plans for frequent senders

6. Fax Burner – Simple Interface for Quick Sends

Fax Burner delivers a streamlined experience with 4.9-star rating and 45K+ reviews. Its simplicity appeals to iPhone users who want fast setup without feature bloat.

Key Features

• Free Tier: 5 lifetime inbound pages (one-time allowance, not monthly).
• Paid Plans from $12.99/month or flexible annual billing.
• Temporary Numbers: Quickly generate temporary fax numbers for receiving; numbers expire after limited use.
• Simple Interface: Minimal buttons and settings—ideal for first-time fax users.
• Monthly and Annual Options: Choose billing frequency matching your usage pattern.

Best For

Minimalist users and first-time faxers who find other apps overwhelming. Best for those sending 1–2 faxes monthly and willing to pay $12.99/month.

Pros

• Simple, beginner-friendly interface
• 4.9-star rating from 45K+ app reviews
• Flexible billing (monthly or annual)
• Fast onboarding; no complex setup steps

Cons

• $12.99/month plan expensive for occasional users (vs. Municorn's $3.99/week)
• Free allowance (5 inbound pages) limited and one-time only
• Temporary numbers expire quickly—inconvenient for ongoing receiving

7. Genius Fax – Broadest International Coverage

Genius Fax excels in global reach, supporting faxing to 46 countries—the highest among all reviewed apps. Rating: 4.86/5 stars from 43K+ reviews.

Key Features

• International Reach: Send and receive faxes to/from 46 countries worldwide.
• Credit Packs & Monthly Plans: Credit-based system with monthly plans starting at $3.99/month (for receiving number only).
• Per-Page Pricing: Approximately $0.40/page (stated rate for individual credits).
• Cover Pages: Customizable with your company details.
• Delivery Reports: Real-time confirmation and archived fax history.

Best For

Users sending faxes internationally or businesses with clients in multiple countries. Unmatched country coverage makes it essential for global operations.

Pros

• Widest international coverage (46 countries)
• 4.86-star rating from 43K+ verified reviews
• Affordable entry ($3.99/month for receiving number)
• Per-page credit system provides flexibility

Cons

• $0.40/page rate higher than FaxTerra's $0.10/page
• Credit system less transparent than fixed pricing
• Monthly plan ($3.99) only covers receiving number; sending requires additional credits

8. iFax – Dedicated Fax Number and Multi-Recipient Sends

iFax combines affordability with professional features, offering a dedicated fax number and multi-recipient capability at $9.99/week (weekly plan).

Key Features

• Weekly Plans from $9.99/week; monthly and annual options also available.
• Dedicated Fax Number: Get a permanent fax number for receiving incoming faxes on your iPhone.
• Multi-Recipient Sends: Send one fax to multiple recipients simultaneously.
• Mobile Scanning: Built-in camera for scanning documents directly in the app.
• Email Integration: Receive faxes and send faxes via email.
• Rating: 4.55/5 stars from 37K+ reviews.

Best For

Small business owners and service providers who need a dedicated fax number and send to multiple recipients regularly. Weekly billing suits variable usage.

Pros

• $9.99/week weekly option cheaper than many monthly competitors
• Dedicated fax number included (unusual for this price tier)
• Multi-recipient capability built-in
• Email-to-fax integration for seamless workflows

Cons

• $9.99/week higher than Municorn's $3.99/week
• 4.55-star rating slightly lower than market leaders
• Exact page limits not disclosed in App Store listing

How We Ranked the Most Popular Fax App for iPhone Users 2026

Our methodology evaluates each fax app across eight core criteria: (1) App Store Rating & Review Count — higher ratings and verified user reviews indicate real satisfaction; (2) Pricing Transparency & Entry Cost — lowest starting price and clearest fee structure; (3) Free Tier Generosity — genuine allowances (not countdown trials) and page limits; (4) Feature Completeness — scanning, cover pages, multi-recipient, delivery confirmation, encryption; (5) International Coverage — countries supported for outbound faxing; (6) Security & Compliance — encryption standards, HIPAA eligibility, data center location; (7) Billing Flexibility — weekly, monthly, annual options without annual lock-in; (8) Customer Support & Documentation — in-app help, FAQ clarity, response time. Data sourced from official App Store listings (October 2026), vendor pricing pages, and aggregated user reviews. Prices and ratings reflect the current market as of publication date.

Criteria for Choosing the Best Fax App for iPhone Users

1. Sending Frequency

• One fax per month: Free tier apps (FaxTerra, Fax.Plus) sufficient.
• 2–10 faxes weekly: Municorn $3.99/week or iFax $9.99/week ideal.
• Daily/regular business use: Monthly plans (eFax, Fax.Plus premium) better value.

2. Document Type and Compliance

• Sensitive/Medical/Legal: Choose Fax.Plus (HIPAA-ready, encryption, Swiss servers) or Fax.Plus alternatives with BAA.
• Standard business documents: Any app with 256-bit encryption sufficient.
• International documents: Genius Fax (46 countries) or FaxTerra (27 countries).

3. Receiving Faxes

• No receiving needed: FaxTerra, Fax Burner (free tier) adequate; save money.
• Permanent receiving number: Municorn, iFax, Fax.Plus (premium) all include dedicated numbers.
• Temporary receiving: Fax Burner's temporary numbers work for one-off setups.

4. Budget Constraints

• Under $5/month: Municorn ($3.99/week, cancelable) or Genius Fax ($3.99/month for receiving).
• $5–$10/month: Fax.Plus ($6.99/month), iFax ($9.99/week).
• $10+/month: eFax ($18.99/month), Fax Burner ($12.99/month).

5. Device Ecosystem

• iPhone only: All apps listed support iOS.
• iPhone + Android: eFax, Fax.Plus, FaxFlow support both (note: Municorn iOS-only).
• iPhone + Mac + Web: eFax (cloud-synced) or Fax.Plus (web portal available).

FAQ

How to fax using iPhone for free?

Use FaxTerra (10 free pages monthly), Fax.Plus (10 free pages monthly), or Fax Burner (5 free inbound pages lifetime). Download the app, verify your phone number, attach a document, enter the fax number, and send. Free allowances renew monthly (FaxTerra, Fax.Plus) or are one-time (Fax Burner). For unlimited free faxing, no legitimate app offers this; paid plans begin at $3.99/week.

Does FaxFlow work?

Yes, FaxFlow works reliably with a 4.8-star rating (7.3K reviews). Over 500,000 fax pages have been sent and received through FaxFlow without errors. The app offers automatic edge detection, encryption in transit, automatic retry on failed sends, and delivery confirmation. Users report fast setup and straightforward sending. Subscription required; weekly/monthly plans available.

Is there a fax app on the iPhone?

Apple iPhone has no built-in native fax app. iOS does not include faxing capabilities by default. To fax from an iPhone, you must download a third-party fax app from the App Store. Popular choices include Municorn (4.78/5 rating, 377K+ reviews), eFax, Fax.Plus, and FaxFlow. These apps turn your iPhone into a fax machine by routing faxes over the internet instead of requiring a phone line or physical machine.

Does fax from iPhone really work?

Yes, fax from iPhone works reliably in 2026. All major fax apps (Municorn, eFax, Fax.Plus, FaxFlow, FaxTerra) successfully send and receive faxes via internet-based routing. Documents are scanned using your iPhone camera, converted to fax format, and delivered to traditional fax machines or other fax recipients. Delivery confirmation and real-time tracking confirm successful transmission. Apps use encrypted transmission and dedicated phone lines, meeting industry standards for medical, legal, and government offices.

What file types can I fax from my iPhone?

Most fax apps support PDF, JPG, PNG, Word (.docx), Excel (.xlsx), and text files. You can also scan paper documents directly using your iPhone camera with automatic edge detection (available in FaxFlow, Fax.Plus, and others). Fax.Plus, eFax, and Municorn allow importing files from iCloud Drive, the Files app, or Photos. Attach up to 20 files (100MB total) in most apps. Exact supported formats vary; check your app's file type list before uploading.

Which fax app is most popular with iPhone users?

Municorn Fax App is the most popular for iPhone users in 2026, leading with 4.78/5 stars (377,403+ reviews) and the lowest entry price ($3.99/week). eFax ranks second for enterprise adoption; Fax.Plus leads among healthcare and legal professionals due to HIPAA compliance (4.7/5, 11K+ reviews). FaxFlow ranks highly for simplicity (4.8/5, 7.3K reviews). "Most popular" depends on use case: occasional senders prefer Municorn; regulated industries choose Fax.Plus; businesses select eFax.