Best Fax Apps for iPhone and Android: Costs Compared

The iPhone guide, Android guide and phone fax hub explain preparation and sending. This comparison focuses on the cost and limitations of choosing a cell phone or mobile fax app, including free fax applications whose sending is not actually free.

Need to send an ordinary document? Review a one-time fax quote. $0.99 covers up to 10 pages, pay only if delivered.

How we compared

• Sources: official US App Store and Google Play listings plus each provider's own pricing and help pages.
• Competitor sources checked: 8 October 2026. SingleFax store availability updated: 27 October 2026.
• Not tested: we didn't time transmissions or run delivery tests, and we don't assign ratings.
• We make SingleFax, so it appears here as our own product, not a neutral pick.

Quick picks for different tasks

These are starting points for a shortlist. A subscription can be worthwhile even when its price exceeds a single send: it may include a continuing number, inbox and team workflow. A free allowance can be the right answer when it meets the entire task. Do not split a required submission into incomplete packets merely to fit a quota.

Fax app for iPhone: pricing and Android alternatives

The prices below are USD before applicable taxes and extras. Store purchase labels and website subscriptions are shown separately. Store catalogs can include older packages and offers that your account cannot buy. The offer presented during checkout controls what you actually purchase.

For receiving, SingleFax's free temporary fax number takes incoming faxes for 24 hours in the browser, with no app needed; sending stays at $0.99. SingleFax: Scan & Fax is live on the App Store and Google Play. The iOS version is 1.6.1, released 27 October 2026, and requires iOS 16.4 or later on iPhone, iPad or iPod touch. Downloads are free; fax sends and numbers are paid. The App Store listing is in English and has no ratings yet.

Fax.Plus: starter quota and recurring mobile use

Fax.Plus offers both mobile platforms and a web account. Its ten-page starter sending allowance can be useful for a first small task. It is ten pages in total, rather than ten fresh pages each month, and it does not give you a free receiving number.

The US App Store listing includes Basic Monthly at $8.99 and Basic Annual at $83.99. The website pricing supplies the associated allowance, extra-page rates and packet caps. Those details matter when deciding whether a large fax fits even if you have enough monthly pages remaining.

The listing also describes credit for occasional sending. Check the actual credit package presented to your account; do not assume that the phrase means a universal $0.99 packet price. When comparing a subscription, include both outgoing and incoming usage and any destination weighting.

This is a sensible shortlist for users who want mobile access to an ongoing number and account. For PHI, the verified BAA path is Enterprise. Basic's low price or the app's privacy language does not establish eligibility for that healthcare agreement.

iFax: examine the exact offer and trial

iFax has iPhone and Android listings. Its public US Apple purchase catalog includes a monthly package with a seven-day trial at $24.99, a send-only weekly package at $9.99 and an outbound-fax purchase at $0.99. These are purchase labels, not a complete rate card for every user or document.

Its website presents a separate annual pricing structure. Do not take an annual equivalent from the website and label it the price of a monthly App Store subscription. Likewise, a one-off purchase label does not establish how many pages or destinations your specific checkout covers.

Before choosing a trial, check when renewal begins, the amount, its billing channel and how to stop it. Sending the document or removing the app does not itself cancel the subscription. The iFax review explains the annual plans, trial terms and different cancellation paths.

For healthcare, the provider's trial page identifies BAA support for Plus and Pro. Confirm the agreement and eligible plan directly instead of treating every app installation or lower plan as covered. A useful mobile workflow is only one part of that decision.

Need to send an ordinary document? Review a one-time fax quote. $0.99 covers up to 10 pages, pay only if delivered.

FaxBurner: a small free allowance and temporary number

FaxBurner is worth considering when the free starter quota and short receiving window fit. Its official packages list five outbound pages total, 25 incoming pages per month and a disposable number that lasts 24 hours. The five sending pages do not renew every month.

Its dedicated FAQ describes a native iPhone and iPad app and directs Android users to email sending. This comparison therefore does not label its email workflow a native Android app. For a continuing number, the website lists Professional at $14.95 monthly for 500 combined sent and received pages.

That can be useful when you expect replies and will keep using the number. A number lasting one day is a poor choice for an office expected to reply next week. The FaxBurner review also covers immediate account cancellation and conflicting international-support statements on its site.

The checked FAQ says FaxBurner is not currently HIPAA compliant. Its ordinary plans should not be used as a substitute for your organization's approved PHI service. This is a verified limitation, rather than an inference from the app's general security wording.

eFax: mobile access to an ongoing account

eFax publishes iOS and Android apps linked to an eFax account. Free installation does not establish free sending. The US App Store catalog lists purchases at $16.99 and $18.99, without enough package detail to treat both as a universal current website plan.

The separately checked website price is Personal at $18.99 month to month and Business at $39.99. Annual billing, allowance and overage have their own terms; the eFax pricing comparison explains those and distinguishes BAA eligibility.

This can suit someone who already uses an eFax number and wants access from a phone. Compare the cost of keeping that account with its number, stored workflow and recurring usage. For one outgoing task, those continuing benefits may be less relevant.

The website places a BAA on Business. Confirm which account and product the mobile app accesses before putting PHI into it. A healthcare capability in the provider's range does not mean every consumer plan or app-store purchase carries that agreement.

Genius Fax: credits for document pages

Genius Fax explicitly distinguishes a free download from paid faxing. Its verified iPhone and Android listings describe a page-credit model. Each document page uses one credit; the cover is free. The US Apple catalog lists one credit at $0.99, ten at $6.99 and fifty at $19.99.

For example, a ten-document-page ordinary packet consumes ten credits. Buying the listed ten-credit package costs $6.99 before applicable extras. Buying a larger package reduces the unit cost but commits more money upfront, so compare what you will actually use.

Receiving has a separate cost structure. The Apple listing shows a US number subscription for one month at $3.99, three months at $10.99 or six months at $20.99; receiving also consumes page credits. Renting a number does not establish an unlimited free inbox.

These are checked US iOS catalog prices. The Android listing verifies the platform and credit model, but we have not treated Apple's exact purchases as Android offers. BAA availability was not verified, so Genius Fax is not included here as an approved organizational PHI choice.

SingleFax: iOS, Android and browser faxing

SingleFax: Scan & Fax is available for iOS and Android. Both apps support camera scanning, file uploads, fax sending and an inbox for received faxes. You can scan a paper document into a PDF, upload it and review the recipient and full packet before checkout.

Ordinary one-time sending starts at $0.99 for up to ten document pages. Failed delivery costs $0. Longer packets add $0.08 per document page up to the 1000-page cap.

The optional composer cover is separate from uploaded document pages; a cover already inside your uploaded PDF is part of that document. An ordinary outgoing fax is not free, and free receiving does not change that. Compare a genuine free competitor allowance first if it meets your task.

For organizational PHI, use the HIPAA web workflow, with its electronic BAA and higher price, rather than ordinary email or WhatsApp. HIPAA one-time sending starts at $6.50 for up to ten pages; an authorized organizational representative must accept the agreement. A patient cannot accept a clinic's BAA on its behalf.

Watch out for weekly trial subscriptions

A weekly price can look small next to a monthly plan, but billing repeats more often. Four $9.99 weekly renewals total $39.96. That arithmetic is not a prediction of your invoice or an assertion about a particular trial; it shows why the renewal interval belongs beside the advertised amount.

Before confirming any trial or purchase, record:

1. The amount charged now and the amount after the trial.
2. The renewal date and billing interval.
3. The included pages, receiving number and packet limit.
4. The cancellation channel and deadline.
5. Whether used credits, paid periods or number rental are refundable.

If Apple bills you, use Apple subscription settings. If Google Play bills you, use Google Play subscriptions. A website purchase may require the provider's account controls. Save confirmation and check the displayed expiry; uninstalling is not cancellation.

Also check whether stopping a plan affects incoming faxes immediately or at the end of a paid period. Download records you are authorized to keep and arrange another return number before abandoning one that an agency or customer still uses.

A no-app option for one fax

An iPhone or Android browser can send through an online fax service without converting your cellular number into a fax line. Start with a readable PDF or supported image, verify the recipient's fax number, upload the complete packet and inspect the quote before payment.

For paper, use a scan feature that crops the page and keeps all required details visible. Retake blurred pages and inspect signatures, dates, barcode edges and small text. Avoid sending screenshots of private viewer links: the service needs the actual file, not a link that requires someone else's login.

If you need a return fax, choose a receiving number whose duration fits the expected reply. A free 24-hour number can work for someone sending now; a continuing office correspondence or slow agency response needs a longer-lived arrangement.

Use the phone fax guide for the preparation steps, then review an ordinary one-time quote when a paid send fits. For approved healthcare use, start with BAA and price comparisons before uploading PHI.

Related comparisons and free tools

Each guide below uses the same method: providers' own pricing and help pages, a checked date, and a clear note that we make SingleFax.

• Online fax services compared (paid plans)
• Best free online fax services
• Best free fax numbers for receiving
• How to fax from a computer (Windows and Mac)
• HIPAA-compliant fax services compared
• How to choose an online fax service
• Free fax tools: cover sheets and file preparation