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Most email tools bill you for your list. day3 bills you for sends.

We think that's the fairer model for a small software team with a growing list. Here's an honest, model-level comparison with the tools you're probably weighing.

day3 vs. Mailchimp

day3 decouples list size from price. Keep any number of subscribers and pay only for the emails you send — so a big list you email occasionally costs far less.

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day3 vs. Kit (ConvertKit)

day3 is for software teams shipping product and telling users about it. Subscribers stay unlimited; you pay only for sends — so the bill stays flat as the list grows.

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day3 vs. beehiiv

day3 isn't a media business tool. It's a focused way for product teams to send updates — unlimited subscribers, with a bill driven only by sends.

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day3 vs. EmailOctopus

day3 removes that variable: unlimited subscribers, billed only by sends. When your list grows faster than you send, that wins.

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day3 vs. Buttondown

day3 shares the minimalism but draws the line differently: priced by sends, with a rich email-safe editor, signup forms, and deliverability built around product updates.

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See how the math works for your list.

How send-based pricing worksGet started