Letterwell is a platform to buy and sell advertising space in newsletter emails.We provide a secure, thoroughly vetted marketplace to connect advertisers with newsletter owners.

Passionfroot is an all-in-one tool to help creators do more sponsorships - easier, and faster. It empowers the world's top B2B creators and media companies to monetize their work while helping the biggest brands scale influencer marketing.

Feature Comparison

Letterwell and Passionfroot both have great feature sets so the right tool for you really depends on your needs.

FeaturesLetterwellPassionfroot
πŸͺ Marketplace

List your newsletter to connect with sponsors

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πŸ’» Programmatic Ads

Automatically add advertisers

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πŸ“ Sponsorship Management

Manage your ad slots and inventory

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πŸ“‘ Market Research

Find potential sponsors and contact them

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Price Comparison

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Compare Letterwell to other tools

See how Letterwell stacks up to these other services.

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Letterwell vs Paved

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Letterwell vs Who Sponsors Stuff

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Letterwell vs Sponsorgap

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Letterwell vs Hecto

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Letterwell vs Sponsy

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Letterwell vs Open Rates

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Letterwell vs Megahit

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Letterwell vs Refind Ads

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Letterwell vs BuySellAds

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Letterwell vs Booker by Paved

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Letterwell vs OhMyNewst

The newsletter tool that feels like Notion. Write, send, and publish to your site: zero clutter, zero tech skills required.

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