LeadWhispering
Tools

Free tools

Practical tools for newsletter publishers and SaaS advertisers. More coming soon.

Newsletter Sponsorship Rate Calculator

For publishers: see what your newsletter sponsorship is worth and what to charge.

Newsletter Advertising ROI Calculator

For advertisers: see if a $99 newsletter launch pays off — clicks, customers, CAC and ROAS.

UTM Builder

For advertisers: tag your newsletter campaign links so you can track clicks and signups in analytics.