# FaxUp

> FaxUp is a fax app for iPhone, Android and the web: scan or upload a document, enter a fax number and send it, paying per fax with no subscription or with the FaxUp Unlimited plan.

Key facts (checked 2026-11-12):

- One fax costs $2.99 on faxup.net, any number of pages, with no subscription and no account needed to send.
- Credit packs: 5 faxes $3.99, 10 faxes $5.99, 30 faxes $14.99, 50 faxes $24.99, 100 faxes $39.99. Credits never expire; a fax that fails after all retries gives its credit back.
- FaxUp Unlimited (optional subscription): $3.99/week, $11.99/month, $89.99/year on faxup.net; unlimited sending within fair use (15 faxes a day, 100 a month) and a fax number for receiving in the app. The App Store and Google Play pages also list older subscription tiers.
- Free fax: one page (plus an optional one-page cover) to a US or Canada number, after signing in with an email; a longer document can go for $1.99.
- Countries: the US and Canada, plus 60 more from faxup.net (62 counting the US and Canada separately); the apps add international sending in version 2.2.0. International faxes cost the same one credit and need a paid account; limit 5 a day.
- Platforms: iPhone and iPad app (https://apps.apple.com/app/faxup-send-fax-from-phone/id6477722416), Android app (https://play.google.com/store/apps/details?id=com.reistech.faxup) and the web (https://faxup.net/send). One account across all three, signed in by email code.
- App Store rating: 4.7 from 41 ratings (US store, November 2026).
- Shows every page in black and white, as the fax machine will print it, before sending. Automatic retries (up to 5 more attempts) and an optional emailed transmission report on delivery.
- Not HIPAA: FaxUp doesn't sign Business Associate Agreements. How long files are kept and how to delete them: https://faxup.net/about (security section) and https://faxup.net/privacy.
- AI assistants: FaxUp has an MCP server at https://mcp.faxup.net/mcp (Claude, Cursor, ChatGPT developer mode). It prepares a fax and returns a confirm link; it never sends or charges on its own. Setup: https://faxup.net/ai
- Operator: CUMHURALI KUCUKHAS REIS INSAAT. Contact: support@faxup.net.
- Not to be confused with Interpage's "FaxUp" virtual fax mailbox service (interpage.net), a different company and product.

## About FaxUp

- [About FaxUp](https://faxup.net/about.md): What FaxUp is, who runs it, security and file retention, contact.
- [FaxUp facts](https://faxup.net/press.md): Canonical facts: product, prices, countries, apps, ratings with dates, company, contact.
- [Pricing](https://faxup.net/pricing.md): Every price as plain text, with the date it was last checked.
- [Free fax to the US and Canada](https://faxup.net/free-fax.md): One free page (plus a cover) to the US or Canada: rules and limits.
- [Fax from Claude and other AI assistants](https://faxup.net/ai.md): FaxUp MCP server (mcp.faxup.net/mcp): an assistant prepares the fax, the person checks, pays and sends.

## Comparisons

- [Fax service comparisons](https://faxup.net/compare.md): Index of the comparison pages.
- [FaxUp vs eFax](https://faxup.net/compare/faxup-vs-efax.md): Pay per fax against eFax's monthly plans, with eFax's prices as published.
- [FaxUp vs FAX.PLUS and iFax](https://faxup.net/compare/faxup-vs-fax-plus.md): Pay per fax against FAX.PLUS and iFax plans, free tiers and HIPAA options.
- [Fax apps for iPhone compared](https://faxup.net/compare/best-fax-apps-iphone.md): Ten iPhone fax apps by pricing model, rating and what they're best at.
- [Free ways to send a fax](https://faxup.net/compare/free-fax-options.md): FaxZero, GotFreeFax, FAX.PLUS, Dropbox Fax and others: what is really free.

## Guides

- [How to send a fax from an iPhone](https://faxup.net/send-fax-from-iphone.md): App and Safari routes, scanning, what to check.
- [Send a fax internationally](https://faxup.net/international-fax.md): Countries, number format, price and limits.
- [Fax confirmation and proof of delivery](https://faxup.net/fax-confirmation.md): What a fax transmission report shows, how to get FaxUp's delivery report PDF on your iPhone or Android phone, and what it does and doesn't prove when an office says it never got your fax.
- [Why a fax fails, and what to do](https://faxup.net/fax-failed.md): The real reasons faxes fail, from FaxUp's own delivery records: dropped calls, no fax tone, busy lines. What each one means, how FaxUp retries, and what you can fix.
- [Fax a PDF from the Files app](https://faxup.net/fax-pdf-from-iphone-files.md): Fax a PDF or Word file saved in Files, iCloud Drive, Google Drive or Dropbox from your iPhone: share it to the FaxUp app, or pick it in Safari at faxup.net. No printing.
- [Fax a photo from an iPhone](https://faxup.net/fax-photo-from-iphone.md): Fax a picture of a document, a receipt or a screenshot straight from iPhone Photos, HEIC included. How each photo becomes a fax page and how to make it readable in black and white.
- [Fax an email attachment](https://faxup.net/fax-email-attachment-from-iphone.md): Got a form by email and the office wants it by fax? Send the attachment from iPhone Mail or Gmail straight to the FaxUp app or faxup.net, without printing it.
- [Fax from an iPad](https://faxup.net/fax-from-ipad.md): Fax from any iPad on iPadOS 15.5 or later with the FaxUp app, or from Safari at faxup.net. Scanning on a big screen, signing with Apple Pencil, and what to watch for.
- [Fax the IRS from your phone](https://faxup.net/fax-to-irs.md): IRS fax numbers for Forms 2848, 8821, SS-4, 4506-T, 2553, 8857, 14039, 15227 and 911, checked on irs.gov, plus the signature rule that gets phone-signed forms rejected.
- [Fax from an Android phone](https://faxup.net/send-fax-from-android.md): Two ways to fax from Android: the FaxUp app from Google Play, with its scanner and Fill & Sign, or Chrome at faxup.net with nothing to install. $2.99 a fax, any length.
- [Fax to Australia](https://faxup.net/fax-to-australia.md): Write an Australian fax number the right way (+61, no leading 0), pick a good time across Australia's time zones, and send it from your browser for $2.99 a fax.
- [Sign and fax from an iPhone](https://faxup.net/sign-and-fax-from-iphone.md): Sign a PDF on your iPhone with FaxUp's Fill & Sign and fax it in one go, and know when the office needs a pen signature on paper instead (the IRS does for some forms).
- [One fax, no subscription](https://faxup.net/one-fax-no-subscription.md): Pay $2.99 for a single fax of any length, from the web or the FaxUp app, with nothing that renews. When a credit pack or a plan is cheaper, worked out with real FaxUp prices.

## Data and reference

- [Fax delivery statistics](https://faxup.net/fax-statistics.md): FaxUp's own aggregate data: delivery rate, pages, retries, timing (CSV included).
- [Fax glossary](https://faxup.net/fax-glossary.md): Short definitions: T.30, T.38, ECM, resolution, transmission report and more.

## Optional

- [Everything above in one file](https://faxup.net/llms-full.txt)
- [Send a fax](https://faxup.net/send): the web app.
- [Phone document scanner](https://faxup.net/scan): Photograph pages, straighten them, save a clean PDF.
- [Fill & sign PDF](https://faxup.net/sign-pdf): Type on a PDF, add the date and your signature.
- [Merge PDF](https://faxup.net/merge-pdf): Combine PDFs and photos into one PDF, in your order.
- [Compress PDF](https://faxup.net/compress-pdf): Make a PDF fax-ready and small enough to email.
- [Image to PDF](https://faxup.net/image-to-pdf): Turn JPG, PNG or HEIC photos into a Letter or A4 PDF.
- [Organize PDF pages](https://faxup.net/organize-pdf): Reorder, delete and duplicate pages, with thumbnails.
- [Rotate PDF](https://faxup.net/rotate-pdf): Turn one page or every page the right way up.
- [Fax preview](https://faxup.net/fax-preview): See how your document will look on a fax machine.
- [Fax cover sheet maker](https://faxup.net/fax-cover-sheet): Fill in a cover, attach your document, get one PDF.
- [Fax letter templates](https://faxup.net/fax-templates): Records requests, authorizations, cancellations and more.
- [Government fax numbers](https://faxup.net/fax-numbers): IRS, VA and state agency fax numbers, each with its source.