CalculatorFox vs Calc Zest

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

CalculatorFox compared with Calc Zest
Detail	CalculatorFox	Calc Zest
What it does	Free online calculators with step-by-step workings and cited sources, embeddable on any website	Free online calculators for finance, taxes, and healthcare decisions
Stage	Startup	Not given
Founded	2026	Not given
Based in	GB	US
Pricing model	Freemium	Free
Pricing	Free plan: all calculators with ads, 5 saved calculations, 1 private link. Personal: $29 USD/year or $5/month with unlimited saved calculations, no ads, PDF and CSV export. Advisor: $149 USD/year or $19/month with client-facing branding, scenarios grouped by client, one PDF per client, and priority	Not given
Key features	1,336 calculators across 23 categories Step-by-step calculation workings shown live Cited sources on every calculator page Save and compare scenarios side by side Embed calculators on your website with three lines of code Update shared figures once across all embeds Export results as PDF or CSV Reusable assumption profiles Private read-only links with expiration Client management and reporting features	RSU tax estimation ESOP value calculator Dental implant cost estimator Markup calculator Reverse sales tax calculator Share incentive plan calculator Mobile-friendly interface Transparent calculation breakdown Real-time results
What makes it different	Visible calculation working for every result, so you can inspect the math rather than trust blindly Every calculator declares its method and sources in code with checked examples Free embedding with your own branding and no tracking of readers Similar calculators are consolidated to one preferred page to avoid duplicate search results	Completely free with no hidden fees or paywalls No data storage or tracking of personal information Instant results without sign-up required Plain language explanations with no jargon Formulas verified and tested against real-world scenarios
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	24	1
Citation Flow (Majestic)	34	8
Referring domains (Majestic)	88	4

5 details filled in for both companies.

More alternatives to CalculatorFox More alternatives to Calc Zest