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.

Find, contact, and close companies who are actively advertising in newsletters through Open Rates real-time database of 10,000+ sponsors

Feature Comparison

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

FeaturesLetterwellOpen Rates
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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