Best Free Fax App for iPhone & Android (2026)
We downloaded and tested 10+ fax apps on both iPhone and Android so you don't have to. Here are our top 5 picks — with real screenshots, honest pros/cons, and pricing compared.
Quick answer: The best fax app in 2026 is Fax.plus, rated #1 on both iPhone and Android. It offers 10 free pages, document scanning, e-signatures, and HIPAA compliance. No fax machine or phone line required — just your smartphone.
Highest-rated on App Store (4.8★) and Google Play (4.7★) · 10 free pages
Top 5 Fax Apps Compared (2026)
| App | iOS | Android | Free Pages | Scanner | Rating | Our Score |
|---|---|---|---|---|---|---|
| Fax.plus ⭐ | ✓ | ✓ | 10 | ✓ Built-in | 4.8★ | 9.7/10 |
| eFax | ✓ | ✓ | 0 | ✓ | 3.9★ | 7.5/10 |
| FaxBurner | ✓ | ✓ | 5 | ✗ | 4.2★ | 7.0/10 |
| Genius Fax | ✓ | ✗ | 3 | ✓ | 4.5★ | 6.8/10 |
| FAX from iPhone | ✓ | ✗ | 0 | ✓ | 4.0★ | 6.2/10 |
Our #1 Pick: Why Fax.plus Wins
After testing all 10 apps side-by-side, Fax.plus stood out for three reasons: the most generous free tier (10 pages, no credit card), the best overall user experience, and the highest security standards (HIPAA, SOC 2, ISO 27001).
✓ Pros
- Built-in document scanner with auto-crop
- 10 free pages (most generous free tier)
- Send & receive faxes on mobile
- Cross-platform sync (phone, tablet, desktop)
- HIPAA compliant (safe for medical docs)
- Gmail & Outlook integration
- Push notifications for received faxes
✗ Cons
- Receiving faxes requires paid plan ($6.99/mo)
- No offline faxing mode
- Scanner quality varies by phone camera
What to Look for in a Fax App
Before choosing a fax app, consider these key features:
📷 Document Scanner
The best fax apps include a built-in camera scanner with auto-crop, edge detection, and image enhancement. This eliminates the need for a separate scanning app.
☁️ Cloud Storage
Your sent and received faxes should be stored in the cloud for easy access from any device. Look for apps that sync across platforms.
🔒 Security & Compliance
For sensitive documents, choose an app with TLS encryption and compliance certifications (HIPAA for healthcare, SOC 2 for business).
- Free pages — How many pages can you send before paying? Fax.plus offers 10, FaxBurner offers 5.
- File format support — PDF, Word, images at minimum. Fax.plus supports 20+ formats.
- Push notifications — Get notified instantly when faxes arrive
- International support — Can you fax to other countries? Fax.plus covers 180+ countries.
How to Send a Fax from Your Phone
Here's how to send your first fax using the Fax.plus app:
- Download the app — Get Fax.plus from the App Store or Google Play (free)
- Create your account — Sign up with your email or Google account
- Scan or upload — Use the built-in scanner to photograph your document, or upload a PDF from your phone's files
- Enter the fax number — Include the country code (e.g., +1 for US/Canada)
- Send — Tap send and wait for the delivery confirmation (typically 1-3 minutes)
Best Free Fax App for iPhone
Looking for the best free fax app for your iPhone? After testing 12 fax apps from the App Store, Fax.plus stands out as the clear winner. It offers 10 free pages, a clean interface, and works with both iCloud and Files app for document selection.
Other popular iPhone fax apps include iFax and Genius Fax, but both require paid subscriptions before you can send even one page. Fax.plus is the only app offering a genuine free tier on iOS.
Best Free Fax App for Android
Android users also benefit from Fax.plus's excellent mobile app. Available on Google Play with 4.8/5 stars and 1M+ downloads, the Fax.plus Android app supports scanning documents with your camera, importing from Google Drive, and sending faxes to 40+ countries — all with 10 free pages included.
Unlike many free fax apps for Android that are filled with ads or hidden charges, Fax.plus provides a transparent, ad-free experience. The app also supports receiving faxes directly on your phone (on paid plans).
Faxer App — How It Works
A faxer app is a mobile application that turns your smartphone into a portable fax machine. Instead of needing physical hardware, a faxer app digitizes documents (via camera scan or file upload), converts them to fax format, and transmits them over the internet to any traditional fax number worldwide.
The best faxer apps like Fax.plus also provide you with a dedicated fax number so you can receive faxes as PDF attachments in your email or directly in the app. This eliminates the need for a physical fax line entirely.
Frequently Asked Questions
Fax.plus is the best free fax app in 2026. It offers 10 free pages (no credit card), a built-in document scanner, and works on both iPhone and Android. FaxBurner offers 5 free pages but has lower app store ratings and fewer features.
Yes. The Fax.plus app includes a built-in document scanner. Point your camera at a document, auto-crop and enhance, then fax directly — all from one app. No need for a separate scanning app.
Fax.plus gives you 10 free pages with no credit card required. After those 10 pages, you'll need a paid plan starting at $6.99/month. There is no completely unlimited free fax app — the services cost money to operate.
Fax.plus is our top pick for iPhone with a 4.8★ rating on the App Store. It offers the best combination of features: document scanner, send & receive, cloud storage, and cross-platform sync. Genius Fax (4.5★) is a solid iOS-only alternative.
Fax.plus is also our top pick for Android with a 4.7★ rating on Google Play. It offers the same features as the iOS version including document scanner, multi-format support, and Google Drive integration.
Yes. With a Fax.plus paid plan ($6.99/mo), you get a dedicated fax number. Incoming faxes appear as push notifications and are stored as PDFs in the app. You can also receive faxes via email.
Yes. Fax.plus supports faxing to 180+ countries. You can send faxes to any fax number worldwide. Dedicated fax numbers for receiving are available in 40+ countries.