SingleFax alternatives

Tools that do what SingleFax does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from SingleFax.

Read 2026-10-19 · SingleFax itself: From $0.99 per use

With a free plan or free to use: GotFreeFax, quackr, HappyScribe, Retell AI.

10 alternativesUnlike SingleFax

#1
GotFreeFax Productivity MCP · open
Sends faxes from a web form to US and Canadian numbers, with a free tier capped at three pages and two faxes a day.
Free planOwn MCP server
90.5k
#2
Faxer Documents MCP · open
Sends fax documents over the internet from a browser or iPhone app, billed per page with no account needed.
Own MCP server
91
Active
From $1 per use
#3
quackr Voice MCP · sign-in
Provides temporary and private phone numbers that receive SMS messages for account verification, with an API and an email option.
Free planCheaper
72.2k
From $0.10 per use
2018
#4
Dialaxy Voice
Cloud phone system with call routing, voicemail, SMS, and CRM integration for contact centers.
More widely used
953k
Active
From $15/mo
#5
HappyScribe Voice
Transcribes audio and video files and live calls into text in 150 languages, with speaker names, subtitles and summaries.
Free planAlso: Summarization, Video
2.7M
From $17/mo
2017
#6
Goodcall Voice
Deploys AI phone agents to answer and automate customer service and sales calls.
Also: Voice, AgentsMore widely used
1.1M
Active
From $79/user/mo
2017
#7
didlogic Voice MCP · sign-in
Provides SIP trunks and DID phone numbers that route voice calls and SMS between VoIP systems and the public phone network.
CheaperAlso: Voice
7.6k
Active
From $0.01 per use
2006
#8
Ultatel Voice
Provides cloud phone system, video conferencing, chat, fax, and contact center with voice automation.
Also: Workflow automationMore widely used
12.6k
Active
From $26/user/mo
#9
Retell AI Voice
Builds and deploys AI voice agents for phone calls, handling inbound and outbound campaigns with transfers, IVR navigation, and CRM integration.
Free planCheaper
91.2k
Active
From $0.07 per use
2023
#10
Suparelay Voice MCP · open
Places phone calls to landlines and mobiles from a browser tab, billed per minute with the price shown before dialling.
CheaperOwn MCP server
40
Active
From $0.03 per use

← SingleFax: the full card All Voice tools →

How this list is made: the words SingleFax is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.