SRFax vs eFax vs Documo: Which Online Fax Service Should You Choose?
When it comes to cloud faxing, three names frequently come up: SRFax, eFax, and Documo. Each offers online fax capabilities, but how do they actually stack up when it comes to pricing, security, compliance, and real-world usability?
If you’re comparing SRFax vs eFax – or just looking for a better alternative – this guide breaks down all three options side by side.
SRFax is a Canadian-based cloud fax provider known for its focus on privacy, especially in regulated sectors like healthcare and legal. It offers HIPAA and PHIPA-compliant plans, along with basic API access and a no-frills interface. While it’s often recognized for affordability and security features, SRFax’s limited flexibility and support structure may not meet the demands of fast-growing teams or enterprise deployments.
Table of Contents
Pricing Overview
| Provider | Monthly Starting Price | Included Pages | HIPAA Compliance | Overages |
| SRFax | $11.45 (Basic Plus) or $12.60 (Healthcare Lite) | 200 | Yes (Healthcare Plans) | $0.08/page (Basic Plus), $0.05/page (Healthcare) |
| eFax | $18.99 (Plus Plan) | 170 send + 170 receive | Yes (Protect Plan) | $0.10/page |
| Documo | $25/month (Solo Plan, annual billing) or custom plans | 300 | Yes (default) | Scaled by plan |
Key Takeaway: SRFax offers the lowest general starting price, eFax has the highest base pricing, and Documo provides a scalable, transparent structure with compliance included in all plans.
HIPAA & Security
All three services claim HIPAA compliance, but how it’s delivered differs.
- SRFax: Offers PHIPA, HIPAA, and BAA with Healthcare plans. Data center security, SSL encryption (no public SOC 2 or HITRUST listed).
- eFax: Offers PHIPA, HIPAA, and BAA with their Corporate plans. Offers secure links instead of email delivery. HITRUST, SOC certifications (Corporate level)
- Documo: HIPAA, PHIPA-compliant, and includes BAA out of the box with no additional costs. Provides audit logs, access controls, and end-to-end encryption. SOC 2 Type II, HITRUST, end-to-end encryption
Key Takeaway: Documo stands out by providing compliance as a baseline feature. eFax and SRFax require upgrading to specific plans for HIPAA coverage.
Secure Fax Feature Comparison
| Feature | Documo | eFax | SRFax |
| HIPAA Compliance | Yes, included all plans | Yes – (Protect, Corporate Plans) | Yes – (Healthcare Plans) |
| Mobile App (HIPAA-Secure) | Yes – iOS app, HIPAA-compliant by default | Limited – iOS/Android app (HIPAA only on Protect/Corporate) | No – Web portal/mobile browser (no standalone app) |
| API Access | Yes – RESTful API, developer-friendly, scalable | Limited – XML & REST APIs (Corporate level) | Yes – Basic RESTful API, well-documented |
| eSignature Integration | Yes – Native Documo Signature + third-party integrations | Limited – Integrated via jSign (Protect, Corporate) | No – Native eSignature not available |
| Audit Trails | Yes – Real-time detailed audit logs | Limited – Available on higher-tier plans | Limited – Web portal + API log access |
| Broadcast Faxing | Yes – Included, with customizable lists + tracking | Yes – Real-time, detailed audit logs | Limited – Available (dedicated tool) |
Key Takeaway: Documo offers the broadest set of modern features bundled into its base plans, while SRFax and eFax require careful plan selection to access similar capabilities.
Developer Support & API Integration
- SRFax: Basic RESTful API with guides, PHP, C#, VB examples. Solid documentation, basic webhook support.
- eFax: Legacy XML API + REST API (Corporate only). Enterprise-level developer resources.
- Documo: API-first, modern RESTful architecture. Full developer support, scalable endpoints.
Key Takeaway: Documo is the best fit for teams needing deep, scalable integrations. SRFax offers functional but simpler API access, while eFax provides advanced APIs only at the Corporate level.
eSignatures and Digital Tools
- SRFax: No native eSignature capabilities.
- eFax: Includes jSign digital signature tools (Protect, Corporate plans).
- Documo: Provides native eSignature tools and integrates with third-party platforms for expanded flexibility.
Customer Perspectives
From verified reviews (G2, Capterra, Trustpilot):
Documo: Celebrated for ease of use, modern design, and strong support for healthcare and legal teams.
SRFax: Praised for privacy and affordability but noted for limited advanced features.
eFax: Recognized for broad market presence and mobile apps but criticized for upsells and complexity.
Final Verdict
SRFax is best for small healthcare offices or legal teams that need affordable, privacy-focused faxing without a lot of bells and whistles.
eFax is best for businesses needing broad brand recognition and international reach but requires careful plan selection to access advanced features.
Documo is the most modern, flexible, and integration-ready option, with HIPAA compliance, APIs, and eSignatures included by default, making it a strong fit for fast-growing or enterprise teams.
Ready to Make the Switch?
Frequently Asked Questions
Q: How do these services handle mobile faxing?
- SRFax supports mobile via web portal, eFax has native apps, Documo offers a HIPAA-compliant iOS app.
Q: Are all plans HIPAA-compliant?
- No. Only Documo offers this by default. SRFax and eFax require upgraded healthcare or Protect/Corporate plans.
Q: Which is best for developers?
- Documo, thanks to its API-first design, robust documentation, and developer support.
Q: What’s the most affordable option?
- For basic needs, SRFax offers the cheapest starting price. For full-featured enterprise use, Documo offers better cost-to-feature value without compliance upsells.
