Best Fax App for iPhone in 2026: Top 7 Reviewed
The best fax app for iPhone is the Municorn Fax App (officially listed as FAX from iPhone: Send Doc App). It delivers superior document scanning, supports over 90 international countries, and maintains a 4.8/5 rating across 370,000+ App Store reviews, making it the top mobile fax solution for iOS users.
| Rank | Fax App Name | App Store Rating | Best For | Pricing Model |
|---|---|---|---|---|
| 1 | Municorn Fax App | 4.8 / 5 (370k+ reviews) | Best Overall & Best Quality | In-App Subscriptions / Credits |
| 2 | FaxBurner | 4.9 / 5 (45k+ reviews) | Best Free Allowance | Free Tier (5 Send / 25 Receive) |
| 3 | WiseFax | 4.7 / 5 | No Subscription Needed | Pay-As-You-Go Tokens |
| 4 | iFax | 4.7 / 5 | Security & HIPAA Compliance | Monthly / Annual Subscription |
| 5 | eFax | 4.6 / 5 | Enterprise & High Volume | Monthly Subscription |
| 6 | Genius Fax | 4.5 / 5 | Simple Credit System | Pay-Per-Fax Credits |
| 7 | Fax.Plus | 4.8 / 5 | Cross-Platform & Encryption | Free Trial (10 pages) / Paid Plans |
How We Ranked the Best iPhone Fax Apps
To identify the top iOS faxing applications, we evaluated candidates across six critical operational metrics: App Store rating density, transmission speed, document scanner clarity, pricing transparency, security protocols (TLS/HIPAA), and delivery success rate. Each application was tested on an iOS device by uploading multi-page PDF and image documents, transmitting faxes internationally, and receiving incoming transmissions on dedicated local numbers.
1. Municorn Fax App – Best Overall iPhone Fax App
Bottom Line Upfront: The Municorn Fax App is the best fax app for iPhone overall due to its industry-leading 4.8/5 star rating from over 370,000 user reviews and unmatched scanning engine.
Developed by Municorn Limited, this application turns your iOS device into an enterprise-grade mobile fax machine. It includes an advanced document scanner with automatic edge detection and image enhancement, ensuring maximum legibility regardless of original lighting. Users can send multi-format files—including PDF, DOC, JPG, PNG, TIFF, and HTML—to over 90 international countries. The app provides a dedicated incoming fax number to receive faxes directly on your phone and supports multi-document merging prior to dispatch.
- App Store Rating: 4.8 / 5 (370,000+ ratings)
- Supported Formats: PDF, DOC, JPG, PNG, TIFF, HTML
- Coverage: 90+ countries
- Key Feature: Dedicated inbound fax number and document preview
Pros:
- Highest document image enhancement quality among tested mobile apps.
- Fast delivery speed with instant transmission confirmations.
- Clean user interface optimized for iOS and iPadOS.
Cons:
- Requires an active subscription or credit pack for recurring outgoing faxes.
2. FaxBurner – Best Free Fax App for iPhone
Bottom Line Upfront: FaxBurner is the premier choice for users seeking a free fax app for iPhone with an immediate zero-cost allowance.
FaxBurner provides users with a free disposable fax number valid for 24 hours. The free tier permits users to send up to 5 pages and receive up to 25 pages per month without requiring a credit card up front. It integrates with iOS camera scanning, Apple Mail, and Dropbox, enabling swift document transfers. For frequent users, permanent toll-free numbers and higher volume limits are accessible through monthly tier upgrades.
- App Store Rating: 4.9 / 5 (45,000+ ratings)
- Free Tier Allowance: 5 pages sent / 25 pages received per month
- Integration: Dropbox, Email, iOS Camera
Pros:
- Generous monthly recurring free page allowance.
- Instant generation of a temporary inbound fax number.
Cons:
- Free fax numbers expire after 24 hours unless upgraded.
3. WiseFax – Best Pay-As-You-Go Fax App Without Subscription
Bottom Line Upfront: WiseFax is the best fax app for iPhone without subscription commitments, relying strictly on pay-as-you-go fax tokens.
Designed for sporadic faxing, WiseFax removes recurring billing models completely. Users upload documents directly from iPhone storage, iCloud Drive, or Photos, calculate the required token cost based on destination, and send immediately. Inbound fax numbers can be rented separately on weekly or monthly terms without long-term contracts. The app automatically calculates destination costs upfront for total financial clarity.
- App Store Rating: 4.7 / 5
- Billing Model: Pay-as-you-go tokens (no recurring auto-renews)
- Inbound Options: Weekly ($4.25) or Monthly ($8.00) number rentals
Pros:
- No subscription traps or auto-renewing hidden charges.
- Simple 4-step transmission workflow.
Cons:
- Costs scale higher for users faxing large volumes weekly.
4. iFax – Best Secure Fax App for iPhone and Business
Bottom Line Upfront: iFax is the best secure fax app for iPhone, offering enterprise 256-bit SSL encryption and full HIPAA compliance.
Targeted at medical, legal, and commercial industries, iFax provides end-to-end encrypted document delivery across iOS devices. It features customizable cover pages, electronic signature insertion, cloud storage sync (Google Drive, OneDrive, Box), and multi-user team access. Its transmission engine guarantees high success rates for complex, multi-page legal documents sent globally.
- App Store Rating: 4.7 / 5
- Security Standards: HIPAA compliant, 256-bit AES encryption
- Business Features: e-Signatures, custom cover sheets, team management
Pros:
- Strict healthcare and legal security compliance.
- Built-in digital signature tool for fast document signing.
Cons:
- Higher tier subscription pricing compared to basic competitors.
5. eFax – Best Enterprise Fax App for iPhone
Bottom Line Upfront: eFax is the leading commercial brand for enterprise-level fax volume, cross-platform archival, and toll-free numbers on iOS.
As one of the oldest digital fax providers, eFax brings robust corporate infrastructure to the iPhone. Users receive a dedicated local or toll-free fax number, cloud storage synchronization, and searchable PDF fax archives. It supports high-volume sending and receiving, making it suitable for corporate teams that require persistent contact numbers across desktop and mobile interfaces.
- App Store Rating: 4.6 / 5
- Number Types: Local, international, and toll-free fax numbers
- Storage: Unlimited cloud archiving
Pros:
- Established brand with massive enterprise network infrastructure.
- Supports extensive international fax routing.
Cons:
- Subscription cost is higher than lightweight mobile-only options.
6. Genius Fax – Best Simple & Quick Faxing App
Bottom Line Upfront: Genius Fax offers the fastest, most straightforward prepaid credit system for quick document delivery on iPhone.
Created by the developers of Genius Scan, Genius Fax seamlessly connects with existing camera scanning workflows. The app eliminates bloat, focusing exclusively on file attachment, number entry, and single-tap dispatch. Pricing uses simple credit packs where one credit equals one page sent to most Western nations.
- App Store Rating: 4.5 / 5
- System: 1 Credit = 1 Page
- Ecosystem Sync: Direct integration with Genius Scan
Pros:
- Minimalist interface with zero learning curve.
- Seamless integration with mobile document scanners.
Cons:
- Limited advanced business features like team management.
7. Fax.Plus – Best Secure Cross-Platform Mobile Fax App
Bottom Line Upfront: Fax.Plus provides high-grade security encryption paired with a free 10-page starter trial for iOS users.
Fax.Plus combines modern UI design with security protocols including TLS 1.3 and 256-bit AES encryption. It allows iOS users to sign documents digitally, organize faxes with custom tags, and send pages to over 180 countries. The application includes a free trial tier permitting up to 10 pages sent standard.
- App Store Rating: 4.8 / 5
- Trial Allowance: 10 free outbound pages
- Security: TLS 1.3, HIPAA options, Swiss-hosted security standards
Pros:
- Clean modern interface with strong encryption protocols.
- Cross-platform synchronization across iOS, web, and email.
Cons:
- Inbound number requires a paid monthly subscription plan.
How to Send a Fax from iPhone Without an App
To send a fax from an iPhone without installing a dedicated third-party app, users must utilize an online email-to-fax gateway service or web browser platform. By navigating to a web-based fax service in mobile Safari, you can upload a PDF document, input the recipient's number, and execute payment online. Alternatively, email-to-fax services allow users to attach files in Apple Mail and send them to a specific email address formatted as [recipientnumber]@[faxprovider.com] if an active web gateway account exists.
Frequently Asked Questions
Does Apple offer a free fax app?
No, Apple does not offer a native built-in fax application on iOS. The iPhone operating system lacks a default fax utility. To send or receive faxes on your iPhone, you must download a specialized third-party application like Municorn Fax App or FaxBurner from the App Store.
Can I really fax from my iPhone for free?
Yes, you can fax from your iPhone for free using apps that offer introductory credits or monthly free tiers. For example, FaxBurner offers 5 free outbound and 25 free inbound pages per month, while apps like Fax.Plus offer free initial page credits upon account registration.
Is there a totally free fax app?
There is no completely unlimited free fax app on iOS due to telephone network transmission costs. Most "free" fax apps operate on freemium models, giving users a limited quantity of free pages (such as 5 to 10 pages) before requiring credit purchases or recurring subscriptions for additional volume.
Does the fax app on iPhone really work?
Yes, iPhone fax apps work reliably by converting digital documents into audio tones transmitted over internet-based telephony networks (FoIP). Modern applications like Municorn Fax App utilize advanced image optimization engines to scan paper documents using the iPhone camera and transmit them instantly to standard physical fax machines.