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What is eFax?

eFax mindshare

As of June 2026, the mindshare of eFax in the Fax over IP (FoIP) category stands at 2.5%, down from 8.8% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Fax over IP (FoIP) Mindshare Distribution
ProductMindshare (%)
eFax2.5%
OpenText Fax18.7%
GFI FaxMaker10.9%
Other67.9%
Fax over IP (FoIP)
 
 
Key learnings from peers
Last updated Jun 22, 2026

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eFax Reviews Summary
Author infoRatingReview Summary
CEO at Leonard and Sons5.0I've used eFax for 10-15 years, mainly for receiving faxes like contracts, praising its ease of use, cost-effectiveness, and stability. It reduced my costs, and I highly recommend this solution as it works great.
Tom Wondra - PeerSpot reviewer
Tom Wondra
CEO at Leonard and Sons
Jun 21, 2026
Online faxing has replaced my fax machine and supports long term document workflows