Documo vs Sfax (2026): which should you pick?

Pick Documo if

• Fits if you run a clinic or practice and need a signed BAA on even the smallest plan
• Works for healthcare software teams building fax into their own product through an API

Look elsewhere if

• Pricey if you're one person, as Solo is $25 a month billed yearly for 300 pages, with 15 cents for each extra page
• Skip it if you want to fax from a phone or desktop app, as none is listed
• Watch out: faxes are kept for 1 year on Solo, Business and Enterprise
• Not for you if you want the API on Solo, as it starts on Business at $80 a month billed yearly
• Watch out: the AI add-on is priced per document by sales, and the FAQ gives Enterprise as $250 a month, not the $240 shown

Pick Sfax if

• Fits if your medical office needs an audit trail on every fax
• Works for practices that fax from desktop programs through a print driver

Look elsewhere if

• Not for you if you want to see a price first, as none could be read from Sfax's pages
• Watch out: the trial is a paid plan you must cancel within 14 days, and monthly plans need 30 days' notice to cancel
• Skip it if you use Android, or Windows older than 11, as neither is supported
• Tight if you need several lines, since plans include one toll-free line and each extra is $5 a month

Documo

• There are no mobile or desktop apps listed; faxing happens in the browser, by email, from a printer or through the API.
• Fax storage is kept for 1 year on the Solo, Business and Enterprise plans.
• AI document processing is billed per document as an add-on and priced through sales.
• Extra pages cost 7 to 15 cents depending on the plan, and extra users and numbers $3 a month each.

Sfax

• Prices could not be read: the Sfax pages on scrypt.com turned away automated reading, and the help center lists no prices.
• Plans include one toll-free line; each extra line is $5 a month on monthly plans or $48 a year on annual plans.
• Cancelling a monthly plan needs 30 days' notice by support ticket or email, with no refunds or partial months after the first 14 days.
• The Windows app supports only Windows 11 on x64 or x86, and the help center lists an iPhone app but no Android app.

Documo

Browser, email and print to fax

Send and receive from a browser or an email inbox, print documents straight to fax, and plug an analog fax machine into the service without a phone line.

Signed BAA on every plan

Documo says every plan is HIPAA compliant and that it signs a BAA at no extra charge, with SOC 2 Type II, audit logs and AES-256 encryption.

Cloud Fax API

A REST API with webhooks sends and receives faxes, generates cover pages and reports delivery status. API access is listed from the Business plan.

AI document processing

An add-on splits, classifies and reads incoming faxes, with a model trained on 20 common healthcare document types, and matches them to patient records.

Numbers and porting

Choose a local or toll-free number, or port an existing one into Documo.

E-signatures and Direct messaging

Sign documents within fax workflows, and add Direct Secure Messaging with an inbox as a paid add-on.

Sfax

Web app with folders and a library

Send, forward, export and split faxes in the browser, sort received faxes into folders and keep reusable files in a document library.

Windows and Mac print drivers

Install the Sfax printer on Windows 11 or a Mac and fax a document from any program's print menu.

Annotate and sign faxes

Mark up and sign a received fax before sending it back, and pick a default fax cover page or buy custom ones.

Audit trail and HIPAA

Each fax keeps an audit trail of activity, and Sfax says it is HIPAA and GLBA compliant and signs a BAA on request.

Admin, SSO and permissions

Admins add users and fax lines, set permissions and IP safelists, and connect single sign-on through Okta, Microsoft Entra ID, Google Workspace and others.

API and file integrations

An API with callbacks lets other software send and receive faxes, and Box and ShareFile integrations move faxes into document storage.

Documo

• Solo Cloud Fax$25

  per month for 300 pages, billed annually

  One user and one fax number, 15 cents per extra page, $3 a month per extra user or number. The page shows no monthly-billed price.

• Business Cloud Fax$80

  per month for 1,500 pages, billed annually ($100 billed monthly)

  10 users, 5 fax numbers and API access, with 9 cents per extra page.

• Enterprise Cloud Fax$240

  per month for 6,000 pages, billed annually ($300 billed monthly)

  50 users, 10 fax numbers, single sign-on and API access, with 7 cents per extra page. The pricing FAQ gives $250 a month instead.

• Custom PlatformCustom

  Unlimited users and numbers, AI document classification and extraction, EHR integrations and an account manager, priced with sales.

Sfax

Pricing could not be confirmed. See scrypt.com.

Documo

• Annual discount

  Save 20% with yearly billing

  Documo's pricing page says yearly billing saves 20%: $240 a year on Business Cloud Fax and $720 a year on Enterprise Cloud Fax.

Sfax

No public discounts listed.