Comparison · By Povilas Konopackas, founder · Updated May 2026

Shotfax vs FaxZero: Clean Fax Without the Ads.

FaxZero lets you send a fax for free. That is genuinely useful, and we are not going to pretend otherwise. If you need to fax a single document to a US number and you do not care about a cover page full of ads, FaxZero works and it costs nothing.

But "free" comes with trade-offs. The ads. The daily limit. The US/Canada restriction. The lack of a delivery receipt. If any of those matter for your fax, this comparison will help you decide.

1. Quick comparison

2. The ads problem

When you send a free fax through FaxZero, the recipient does not just get your document. They get a cover page first, and that cover page has FaxZero advertisements on it. Your doctor, your landlord, your attorney, your HR department: they all see the ads before they see your form.

For casual, low-stakes faxes, this is probably fine. Nobody is going to reject your form because the cover page had an ad on it.

But think about the context. You are faxing because the recipient specifically requires fax. These tend to be formal situations: medical records requests, legal filings, insurance claims, signed contracts. In those situations, a cover page with ads looks unprofessional. It does not kill the deal, but it does not help.

FaxZero's paid option at $3.29 removes the ads. That is $0.90 less than Shotfax. If you are sending to a US or Canadian number and the $0.90 matters, FaxZero paid is the cheaper choice. That is an honest assessment.

Shotfax does not add a cover page at all. Your document goes through as-is, clean, with nothing prepended. No ads, no branding, no extra pages the recipient has to flip past.

3. Where FaxZero wins

Let's be direct about this.

Price, if you accept the ads. Free is free. If you are faxing a pizza order or a casual document and the ads genuinely do not matter, FaxZero saves you $2.99. That is real money you keep in your pocket.

Price, even without ads. FaxZero's paid tier is $3.29 per fax. Shotfax is $2.99. For US and Canadian faxes up to 20 pages, FaxZero paid is $0.90 cheaper. If you are sending multiple domestic faxes, that gap adds up.

No account required on either. Both services let you fax without creating an account. This is a draw.

4. Where Shotfax wins

No ads, ever. Your document goes through clean. No cover page with advertisements. No branding. Just your pages, delivered to the fax machine exactly as you uploaded them.

International faxing. FaxZero's free tier only works for US and Canadian numbers. Need to fax something to the UK, Germany, Australia, or any of the other 160+ countries Telnyx covers? Shotfax handles it at the same $2.99 base price. FaxZero cannot.

No daily limit. FaxZero limits free users to 5 faxes per day. If you need to send 6 or more faxes in a single day (it happens, especially with legal filings or insurance paperwork), the free tier cuts you off. Shotfax has no limit.

Delivery receipt PDF. Shotfax emails you a proper delivery receipt as a PDF with a timestamp and page count. This matters if you need to prove the fax was delivered, which is common with court filings and medical records requests. FaxZero sends an email notification but does not provide a formal receipt document.

Photo-to-fax. Shotfax accepts JPG and PNG uploads and converts them to a clean black-and-white PDF before sending. If you are standing in your kitchen with a form you need to fax, you can snap a photo with your phone and send it. FaxZero accepts PDF and DOC files but not raw photos.

File privacy. Shotfax deletes your file from its servers the moment delivery is confirmed. If file-retention timing matters to you (e.g. medical or legal documents), review each provider's current privacy policy directly to confirm how long uploaded files are kept — policies can change, so go to the source.

5. The honest recommendation

6. Frequently asked questions