Best online fax alternative to Concord Fax

When multiple facilities compete for the same inbound referral, speed determines who wins the patient. Fax.Plus can stream fax pages in real time as they arrive, without waiting for the full document. Fax Streaming is available on request.

It runs on the Fax.Plus API, with signed webhooks, public documentation, and MCP on every paid plan, so development teams can integrate without leaving their workflow.

Ready to evaluate? Start free at fax.plus/signup, compare plans at fax.plus/pricing, or contact the enterprise team at alohi.com/contact-sales.

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ISO 27001 and SOC 2 Type II certified (EY CertifyPoint), with HIPAA, PHIPA, GDPR, CCPA, and CSA STAR, and adherence to PCI DSS. Alohi is based in Geneva, with no US parent company.

Full compliance details: alohi.com/trust/compliance

Fax.Plus vs. Concord Fax: Side-by-Side

Quick Answer

Fax.Plus is built for mid-market and enterprise teams that need a fax platform certified across a broader compliance stack, with real-time fax streaming available on request and data residency in more than 40 locations, including the United States and Canada. Fax.Plus offers a more modern platform, stronger independent certification, and more flexibility than Concord, and you can evaluate it without a sales call.

Why Teams Switch from Concord Fax

Most organizations evaluating Fax.Plus are not looking to switch because something broke. They are looking because they hit a specific limitation: a feature they need is not in their plan, or their compliance requirements extend beyond what a US-based infrastructure can cover by default. Here is where those gaps show up.

1. The Feature You Actually Need Is Sold Separately

Time and again, the same story comes up when speaking with teams across industries: they are losing time not because of staffing or capacity, but because a competing facility saw the fax first. With Fax Streaming, the Fax.Plus API delivers each page individually as it arrives via a signed webhook, so your team starts reviewing page 1 while the rest is still transmitting. Fax Streaming is available on request and is switched on account-wide.

2. Pricing Transparency Stops at the Enterprise Threshold

Fax.Plus publishes all pricing. Basic starts at $6.99/month. Enterprise is $99.99/month for 4,000 pages, or $79.99/month billed annually. You can run the numbers, build your business case, and make a decision before talking to anyone. Enterprise can be paid by invoice, with a purchase order, or by ACH or bank transfer.

Concord publishes entry-level FaxPro pricing from $10.95/month. At enterprise scale, pricing requires a demo and a commercial proposal. For procurement teams that need to justify a switch internally, that process adds weeks before you can even compare numbers.

3. No Free Tier, and Enterprise Evaluation Requires a Sales Conversation

Fax.Plus does not require a demo or sales call to begin evaluation. Compliance documentation is public, and the platform is accessible from day one.

Evaluating Concord's enterprise product requires a sales engagement before you can test anything. For IT directors who need to run a proof-of-concept before committing a budget, that adds friction before the evaluation even begins.

4. Integrations Outside the Microsoft and EHR Stack

Fax.Plus connects with Google Workspace, Microsoft 365, Slack, and Zapier, opening connections to thousands of additional tools without custom development. For teams running Google-first workflows or coordinating document routing through Slack, these integrations work out of the box. Faxes that need a signature can be forwarded to Sign.Plus, Alohi's own e-signature product, to sign or request signatures under the same account.

Concord does not list Google Workspace, Slack, or Zapier integrations on its site.

5. Data Residency on Your Terms

On Enterprise, US customers can keep their fax data in the United States, with nine US data center locations to choose from. Organizations like Neuralink, Cloudflare, and PwC run on Fax.Plus.

For organizations with international operations, data residency is available in more than 40 locations, including Canada. Primary and backup data can be stored in separate locations. Admins can also set how long faxes are kept, down to zero days, and owners and admins get an analytics dashboard with fax usage per member.

Concord is headquartered in Seattle and primarily serves the US market. Organizations with non-US data requirements should confirm what residency options are available for their specific plan before switching.

6. A Platform That Takes Fax Seriously

Fax may be a legacy technology, but the tools used to manage it do not have to feel that way.

Fax.Plus is built with a modern, intuitive interface designed for teams that process high volumes of inbound and outbound faxes daily. Sending, receiving, organizing, and routing faxes works the way you would expect it to. It runs on web, iOS, Android, macOS, and Windows from one account, and PCMag's online fax roundup notes that Fax.Plus's dedicated mobile apps "work extremely well." (PCMag: The Best Online Fax Services)

7. Built for Developers and AI Agents: API, Webhooks, and MCP

Most cloud fax platforms treat the API as an afterthought. Fax.Plus is built API-first, with a fully documented REST API included on the Enterprise plan, official SDKs for Node.js and Python, and a hosted MCP server on every paid plan.

Webhooks are signed, can be filtered by event type and fax number, and come with a delivery log, replay of missed events, and alerts when an endpoint keeps failing. Real-time page-by-page Fax Streaming is available on request, so downstream systems receive and process each page as it arrives rather than waiting for full document delivery. Outbound fax scheduling, retry logic, and delivery status callbacks are standard API features.

Fax.Plus was the first enterprise fax provider to ship an MCP server. It lets AI assistants such as Claude, ChatGPT, and Copilot send faxes, find received faxes, and check delivery status, and it is available on every paid plan except accounts with Advanced Security Controls, such as HIPAA accounts, which use the API and fax streaming instead. The API documentation is also accessible via MCP, so development environments can query API references and code examples without leaving the workflow.

For healthcare teams, Fax.Plus Enterprise integrates with EHR systems, so faxes work alongside patient records. Fax events can also trigger Slack notifications, document routing, and compliance logging without manual work.

Concord's API documentation sits behind a developer-portal registration, so it cannot be reviewed before signing up. Organizations building fax into automated workflows should confirm integration options before committing to a platform.

Full API documentation: apidoc.fax.plus | MCP: apidoc.fax.plus/mcp

Real-Time Fax Streaming: Why It Matters

In most fax environments, the complete document transmits before anyone can review it. For a 20-page inbound referral packet, the admissions coordinator sees nothing until page 20 arrives. Under line congestion or error conditions, the system queues a full retransmission from the beginning. If several facilities are competing for the same patient simultaneously, batch delivery means you are always waiting.

With Fax Streaming, the Fax.Plus API delivers pages as they arrive, one at a time, in real time. In a competitive referral environment, that architectural difference has direct operational consequences:

• Triage begins minutes earlier per referral
• Bed availability checks happen before competing facilities finish receiving the same document
• A facility with streaming infrastructure can confirm patient acceptance while a batch-delivery facility is still waiting
• At volume, the cumulative effect on referral response times is significant

Based on customer feedback and Alohi's analysis of Concord's product documentation, the standard cloud fax product uses batch delivery. First-page preview is not included in the base product. Concord does not publish its product tier structure publicly, so this is based on evaluation rather than a published rate card.

For a technical breakdown of how the feature works, see: How Fax Streaming Works: The Technology Behind Real-Time Fax Delivery.

US Data Residency. Independently Certified.

Alohi's ISO 27001 and SOC 2 Type II certifications are issued by EY CertifyPoint, an independent certification body, not a self-attested claim. The stack also covers HIPAA with a signed BAA, PHIPA, GDPR, CCPA, and CSA STAR, with adherence to PCI DSS. Alohi is based in Geneva under Swiss data protection law, with no US parent company, and US customers can keep their data in the US.

Full certification details: alohi.com/trust/compliance

Is Fax.Plus the Right Alternative to Concord Fax?

Fax.Plus is the right fit if your organization needs page-by-page fax processing, a compliance stack that goes beyond HIPAA, and data residency in the US or across more than 40 locations.

Healthcare organizations use it to compete on referral intake speed. Legal teams use it to route documents through existing Google Workspace and Slack workflows without custom development. Enterprise teams at companies like Canva, Neuralink, Cloudflare, and PwC use it because the platform is modern, the API is production-ready, and the compliance stack is independently certified for ISO 27001 and SOC 2.

The trial is free, self-serve, and starts immediately. No sales call required.

See If Fax.Plus Fits Your Organization

The fastest way to compare is to run both. Fax.Plus has a self-serve trial with no demo required, no sales call, no waiting. If you are evaluating at enterprise volume and want to discuss pricing, migration support, or a custom page allocation, the sales team is available directly.

Start free (no credit card): fax.plus/signup

Compare plans and pricing: fax.plus/pricing

Enterprise / custom volume: alohi.com/contact-sales

Fax.Plus API: fax.plus/fax-api

Healthcare compliance overview: fax.plus/industries/healthcare