8 Best Documo Alternatives (Formerly mFax) for 2026

Documo, the cloud fax platform formerly known as mFax, is a capable HIPAA-compliant service. It sends and receives fax through the cloud, signs a Business Associate Agreement (BAA) on every plan, and has spent the last two years rebuilding itself around AI document processing. That last part is why many people start shopping. After mFax folded into the single Documo brand, the cheap and pay-as-you-go entry plans disappeared, and the product now leads with automation features that a practice sending 200 faxes a month does not need or want to pay for.

If you send protected health information or legal documents, the fastest answer is this: we built FaxSIPit as a HIPAA-compliant cloud fax service that runs on a dedicated fax network, includes HIPAA and BAA on every plan, and can connect the physical fax machines you already own. Below we compare it against seven other Documo alternatives so you can match a provider to how your organization actually faxes.

Key Takeaways

• Documo's cheapest plan is now $25 per month. The low-cost and pay-as-you-go tiers that mFax offered are gone, which is the single most common reason low-volume users go looking for a replacement.

• HIPAA is not automatic. Fax.Plus includes a BAA only on its top Enterprise plan, and iFax leaves HIPAA off its cheapest tier. A cheap plan that cannot sign a BAA is not compliant for protected health information.

• Five of the best-known "alternatives" share one owner. eFax, MetroFax, MyFax, Sfax, and SRFax are all Consensus Cloud Solutions brands. Moving between them is not switching vendors.

• Reliable fax is a platform problem, not a protocol one. Fax added onto a voice or UCaaS system has no retry logic. A dedicated managed fax platform reroutes a failed transmission through another carrier.

• Our top pick is FaxSIPit for organizations that need carrier-grade fax infrastructure and a way to keep existing machines and numbers while moving to encrypted cloud transport underneath.

Top 8 Documo Alternatives for 2026

1. FaxSIPit: Best for moving to a dedicated compliant cloud without replacing your fax machines

We built FaxSIPit as a HIPAA-compliant cloud fax service, meaning cloud fax that works with the machines and tools you already use, purpose-built for industries where a failed fax has legal or patient-safety consequences. We include HIPAA and a signed BAA on every plan, from the $15 Starter plan through custom Enterprise deployments, with up to seven years of storage across all of them.

What sets us apart on this list is fax infrastructure, not a fax app. Our SecureFax-ATA device connects existing physical fax machines and multifunction printers to the cloud, so a hospital keeps its machines, shared numbers, and routing rules while encrypted transport runs underneath. For high-volume and custom builds, we support REST API integration, Bring Your Own Carrier (BYOC), SIP trunks, and full hosted fax-server replacement. We are also independent, so choosing us is real diversification, not a move between two brands under the same roof.

Reliability comes from the platform above the protocol. Our dedicated fax network is never busy at the point of receipt, transmissions are queued and delivered over managed TLS and HTTPS transport, and intelligent multi-carrier retry automatically reroutes through another carrier path when a single transmission hits trouble. That produces a 95%+ delivery rate versus 70 to 80% on raw T.38, based on transmission data across FaxSIPit's network.

Pros: HIPAA and BAA on every plan; a hardware bridge for existing machines; carrier redundancy; TLS last-mile encryption on every fax; enterprise API, BYOC, and SIP-trunk options.

Cons: We are a fax specialist, not an all-in-one communications suite, and we do not sell an AI document-processing layer. If you need automated intake and extraction bolted onto your fax, Documo's Custom plan is built for that and we are not.

Not for you if you want a consumer app for a handful of personal faxes a month. That is not who we build for. See how it fits your workflow on our cloud fax solution page.

2. SRFax: Best for low-volume solo practices sending a few faxes a month

SRFax is a budget-oriented HIPAA fax service aimed at small healthcare practices, with a Healthcare Lite plan at $12.60 per month for 200 pages and a BAA included on every plan. For a solo provider who sends a handful of referrals a week, the entry price is genuinely low and compliance is built in rather than sold as an add-on.

The catch buyers should know: SRFax is a division of Consensus Cloud Solutions, the same parent company behind eFax, MetroFax, MyFax, and Sfax. If you are leaving Documo to get away from a big consolidated fax provider, SRFax puts you right back inside one.

Pros: Low monthly entry; HIPAA and BAA without a tier upgrade; simple to set up.

Cons: Limited workflow automation; no dedicated mobile app; number porting carries a fee; part of the Consensus family.

Not for you if your fax volume climbs into the thousands of pages or you need API integration into an EHR. We break down the trade-offs further in our SRFax alternative guide.

3. iFax: Best for clinicians who fax from a phone or tablet

iFax is a mobile-first online fax service with the largest consumer search presence of the pure-fax brands, strong iOS and Android apps, a programmable fax API, and Zapier automation. It leans harder into the phone-and-tablet experience than any other option here.

Read the plan tiers closely before you buy for a regulated workflow. The Basic plan at $12.49 per month (billed annually) for 200 pages does not include HIPAA. Compliance and a BAA start on the Plus plan at $24.99 per month. So the headline price and the compliant price are two different numbers.

Pros: Best-in-category mobile apps; API and Zapier integrations; clean, modern interface.

Cons: HIPAA is gated to a higher tier; admin controls are lighter than enterprise buyers expect; the feature set leans consumer.

Not for you if you run multi-department fax operations that need deep user management and audit control. For a closer look, see our iFax alternative comparison.

4. eFax: Best for large organizations that want the most established name

eFax is the most recognized brand in online fax, with broad availability and easy onboarding. For an organization that values a household name and a long operating history over anything else, it is the safe-feeling default. It has run online fax longer than almost any name on this list.

Two things regulated buyers should weigh. First, HIPAA suitability is plan-dependent: a signed BAA is typically tied to eFax's business tiers rather than its entry Personal plan, so confirm compliance is on the plan you buy. Second, eFax retains ownership of your fax number as a matter of policy, which is a continuity and compliance risk if you ever need to leave. Canceling requires a phone call rather than an online option, so confirm the exit process before you sign. Confirm number ownership and exit terms in writing before you sign.

Pros: Widest brand recognition

Cons: Fax delivered on a general platform rather than a purpose-built compliance network; BAA requires a higher tier; number-ownership and exit terms are a risk to check.

Not for you if you want an independent vendor. Like SRFax, eFax is a Consensus Cloud Solutions brand.

5. Fax.Plus: Best for the lowest sticker price on non-regulated faxing

Fax.Plus, from Swiss company Alohi, has the cheapest entry price in this roundup at $6.99 per month for 200 pages on its Basic plan, with a clean, easy interface. For a small business faxing documents that are not covered by HIPAA, it is a reasonable low-cost option.

Here is the trap for regulated buyers. Fax.Plus offers HIPAA compliance and a signed BAA on its Enterprise plan only. The inexpensive Basic and Premium plans that draw people in cannot sign a BAA, so they are not compliant for protected health information no matter how careful the sender is.

Pros: Lowest starting price; polished interface; wide international coverage.

Cons: HIPAA and BAA locked to the top tier; the affordable plans are non-compliant for PHI; limited fax infrastructure depth.

Not for you if you handle any protected health information on a budget plan.

6. Nextiva Fax: Best for offices already using Nextiva for phone service

Nextiva Fax is the online fax add-on inside the Nextiva communications platform, starting at $7.95 per month for 500 pages with 256-bit encryption and a claimed 99.999% uptime. If your office already runs Nextiva for voice, folding fax into the same bill and login is convenient, and HIPAA compliance is available through a sales conversation.

The structural point matters for reliability. Nextiva fax is fax bolted onto a voice and UCaaS system, not a dedicated fax platform. When fax rides on general voice infrastructure, a busy signal or packet loss fails the transmission with no alternate routing behind it. That is the exact gap a managed fax network is designed to close.

Pros: Convenient if you already use Nextiva; low per-page cost; bundled billing.

Cons: Fax is a secondary feature on a voice platform; HIPAA setup routed through sales; not built for fax-first reliability.

Not for you if fax is mission-critical and you are not already a Nextiva customer. Our Nextiva Fax alternative guide goes deeper.

7. Retarus: Best for multinationals sending very high fax volume

Retarus is a German enterprise messaging company whose HIPAA-compliant cloud fax service targets very large, high-volume deployments, with native REST and SMTP APIs, gateway integrations, TLS and HTTPS transport, and EHR connections to systems like Epic and Cerner. It competes for the same enterprise contracts as our own Enterprise tier.

Pricing is quote-based and the buying process is enterprise procurement, not a self-serve signup. Retarus is strongest for organizations sending thousands of pages across borders that want a heavyweight API and gateway stack.

Pros: Enterprise-grade API and gateway depth; strong for cross-border high volume; EHR integrations.

Cons: Quote-only pricing; limited fit and small footprint for US small and mid-size buyers; longer procurement.

Not for you if you are a small practice or want to sign up online today.

8. OneFaxNow: Best for sending the occasional one-off fax with no subscription

OneFaxNow is a pay-per-fax service with no monthly plan, charging $3.50 for a fax of 1 to 10 pages and $5.00 for 11 to 50 pages, with a HIPAA add-on and an instant BAA available for a one-time fee. For someone who sends a fax a few times a year, paying only when a fax goes through is the cheapest honest option on this list.

The model is also its limit. Pay-per-fax stops making sense once you fax regularly, and it is not built for the audit trails, user management, and volume that a clinic or firm needs day-to-day.

Pros: No subscription; pay only on successful delivery; HIPAA available as an add-on.

Cons: Cost adds up fast at volume; thin administrative and reporting features; not a fit for daily operations.

Not for you if you send fax as part of a regular workflow.

Why People Leave Documo (Formerly mFax)

The most common reason is price. When mFax unified under the single Documo brand, its mSign signature and mDrive storage tools folded in and existing mFax users were migrated to Documo Cloud Fax, but the cheap and pay-as-you-go entry plans went away. Documo now starts at $25 per month for the Solo plan (300 pages), then $100 for Business and $300 for Enterprise, with a Custom tier that adds AI document processing and EHR integration. A low-volume practice that paid a few dollars a month on old mFax feels that jump.

Documo plan pricing as of August 2026. The cheap and pay-as-you-go entry plans mFax offered are no longer available.

The second reason is fit. Documo has repositioned around agentic document automation, meaning AI that reads, classifies, and routes the documents you fax, on top of the fax itself. That is a real advantage for organizations building automated intake. For a team that just needs reliable, compliant fax, it is capability they now pay toward whether they use it or not.

To be clear, Documo is a credible platform. It includes HIPAA and a BAA on every plan, holds SOC 2 Type II, and its support earns consistent praise in user reviews. This is a decision about price, independence, and whether you want a fax specialist or a document-automation suite. It is not a case of a bad product. It also holds a favorable editorial review on Forbes Advisor.

A weigh-up of Documo as it stands in August 2026. Leaving is a decision about price and product direction, not product quality.

The pattern underneath all of this shows up in practitioner threads. On Reddit's r/it community, IT staff describe switching fax providers almost yearly to escape transmission failures and cost, and note that HIPAA support is not something every provider actually offers. And in regulated work, dropping fax is not an option. As one pharmacy IT reply put it plainly, they are required to keep faxing for patient care no matter how modern the rest of the stack gets.

Who Really Owns Your Documo Alternative

Before you switch, check who owns the alternative you are considering. Five of the most-recommended names in online fax are the same company: eFax, MetroFax, MyFax, Sfax, and SRFax are all brands of Consensus Cloud Solutions, formerly j2 Global. They share a parent company. Moving from one to another is a billing change, not a real change of vendor.

Five of the most-recommended Documo alternatives share one parent company, Consensus Cloud Solutions, formerly j2 Global.

This matters because the top AI-generated and directory recommendations for "Documo alternatives" often lead with SRFax without mentioning the ownership. A buyer who picks SRFax thinking they have diversified away from the big consolidated fax providers has in fact stayed inside one. MetroFax sits in the same family, and because its own materials are not consistently clear on HIPAA, confirm its BAA availability directly with the provider before assuming compliance either way.

We are independent. For an organization whose whole reason to leave is vendor concentration or a specific provider relationship going sideways, that independence is the point, not a footnote.

How to Choose a Documo Alternative

Match the provider to how you fax on five questions, in this order.

The five questions to answer, in order, before you switch off Documo.
What is your monthly page volume? 

A solo practice sending a few hundred pages wants a low flat plan. A hospital sending thousands wants an enterprise plan with per-page overage that makes sense at scale and a network built for the load. Do not buy a consumer plan for enterprise volume, or an enterprise contract for a handful of faxes.

Is HIPAA on the plan you are actually buying? 

This is where cheap plans mislead. Confirm that a signed BAA comes with the specific tier you select, not a higher one. On this list, Fax.Plus and iFax both keep HIPAA off their entry plans, while we and SRFax include it on every plan. Our guide to HIPAA fax requirements walks through the full compliance checklist.

Is it a dedicated fax platform or fax added onto something else? 

Fax bolted onto voice or UCaaS, like the Nextiva add-on, is real-time and single-path. If the line is busy or the carrier path drops packets, the fax fails with no retry. A dedicated managed platform queues the transmission and reroutes it through another carrier automatically. On the encryption side, T.38 has no native encryption on the legs that traverse the public internet, so we encrypt the last mile over TLS and HTTPS on every fax, on every plan.

Do you need to keep physical machines? 

Many organizations cannot rip out the fax machines on their floors. A hardware bridge like our SecureFax-ATA connects those machines and their existing numbers to encrypted cloud transport without changing the workflow staff already know.

What are the exit terms? 

Before you commit, confirm you can port your number out and read the cancellation terms. Some providers retain number ownership or make leaving harder than joining, which becomes a compliance and continuity problem later. Confirm it in writing before you sign anything. For the full compliance picture, see our roundup of the best HIPAA-compliant fax services and our HIPAA compliance page.

Frequently Asked Questions

Is Documo HIPAA compliant?

Yes. Documo includes HIPAA compliance and a signed BAA on every plan, and holds SOC 2 Type II certification, with TLS 1.2 encryption in transit and AES-256 at rest. Compliance is not the reason people leave Documo. Price and product direction are.

How much does Documo (formerly mFax) cost?

Documo starts at $25 per month for the Solo plan with 300 pages, then $100 per month for Business with 1,500 pages, and $300 per month for Enterprise with 6,000 pages, as of August 2026. Per-page overage runs from $0.15 down to $0.07 as plans get larger. A Custom tier adds AI document processing and EHR integration at a quoted price. The old low-cost mFax entry plans are no longer offered.

What is the best Documo alternative for a small practice?

It depends on your volume and whether HIPAA comes on the plan you buy. For a small regulated practice that wants compliance included and room to grow into enterprise infrastructure, we recommend FaxSIPit, starting at $15 per month with HIPAA and a BAA on every plan. SRFax is a lower-cost option at $12.60 per month, with the caveat that it belongs to the Consensus family. Avoid entry plans from providers that gate HIPAA to a higher tier.

Is there a free HIPAA-compliant fax service?

Not in any realistic sense. Free online fax tools do not sign a Business Associate Agreement, and without a signed BAA a service cannot be used for protected health information under HIPAA. The lowest genuinely compliant option is a paid plan that includes a BAA, which starts in the low teens per month across the providers here. Treat any "free HIPAA fax" claim with suspicion.

The most common compliance misunderstanding in online fax shopping.

Can I keep my fax number when I switch from Documo?

Usually yes. Fax numbers can be ported between providers, and the process typically takes one to four weeks. The thing to confirm first is the exit side: check that your current provider will release the number and read its porting and cancellation terms before you start, because some providers retain number ownership or charge to port out. Verify the terms in writing while you are still a paying customer.

The Bottom Line

Documo is a solid HIPAA cloud fax platform, and the reason to leave it is rarely quality. It is the higher price floor after the mFax rebrand, a product now aimed at AI document automation, or a preference for an independent, fax-first vendor. Once you know your volume, confirm HIPAA on the exact plan you buy, and check the exit terms, the right alternative usually picks itself.

For regulated organizations, our recommendation is FaxSIPit, the HIPAA-compliant cloud fax service we have run for healthcare, legal, and finance since 2008, when we co-created HTTPS faxing. More than 300 resellers across 40+ countries build on our platform, and we integrate with the tools teams already use, including Microsoft Teams and Zoom, where our app was named Zoom's App of the Month. HIPAA and a signed BAA come on every plan. If mobile-first faxing or pure lowest price is your priority instead, iFax and Fax.Plus are honest picks for those needs.

See current plans on our pricing page, or tell us about your fax volume and we will show you how we handle HIPAA-compliant fax at your scale.

Sources

1. Documo Review on Forbes Advisor

2. Looking for Online Fax Solutions on Reddit