Tallymark vs SingleFax

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Tallymark compared with SingleFax
Detail	Tallymark	SingleFax
What it does	Free invoicing software for Stripe with no monthly or percentage fees	Send one-time faxes online from $0.99, pay only if delivered
Stage	Established	Not given
Founded	2015	Not given
Based in	CA	US
Pricing model	Free	Not given
Pricing	Free. You only pay Stripe's standard processing fees (2.9% + 30¢ per transaction in the US).	One-time fax: from $0.99 for up to 10 pages, then $0.08 per extra page (max 1,000 pages), pay only if delivered. 30-day fax number: $4.99 one-time payment. Lifetime Basic fax number: $97 one-time payment. Lifetime Pro fax number: $147 one-time payment. Standard Plan (monthly): $6.58/mo or $79/year (
Key features	Create professional invoices with logo and brand colors Invoices in 8 languages Automatic payment processing with card on file Recurring invoices and subscription billing AutoPay for instant automatic payments Support for multiple currencies API and AI agent integrations Invoice tracking and payment notifications Custom fields for sales pages	Send faxes from browser, email, or mobile app Pay only if delivery succeeds Support for up to 1,000 pages per fax Timestamped delivery confirmation Searchable AI transcripts for received faxes HIPAA Secure workflow with signed BAA IRS form filing with carrier proof Chrome extension for PDF faxing
What makes it different	Completely free with no monthly or percentage fees Payment form embedded directly in invoices for faster checkout Instant automatic payments with AutoPay One-page e-commerce store with no commissions API and AI agent ready for custom integrations	No account or subscription required for one-time faxes Pay only if fax delivers successfully Integrated IRS filing with official transmission proof Lifetime fax numbers with no monthly rental fees
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	25 no change since last check
Trust Flow (Majestic)	0	1
Citation Flow (Majestic)	19	27
Referring domains (Majestic)	5	36

5 details filled in for both companies.

More alternatives to Tallymark More alternatives to SingleFax