Iterable × Calm
Iterable x Calm: 4x onboarding revenue by compressing a 27-day email sequence
4x increase in revenue from new-member onboarding
Best-guess marketing to data-driven optimization
Why it works
The story earns its headline number by showing the exact mechanism: an Amplitude retention chart revealed 80% drop-off in the first 30 minutes, which led to a specific A/B test compressing eight emails from 27 days to 15 days. That chain of insight to action to result is clear and replicable. The secondary Efficiency signal is real (27 to 15 days) but the revenue lift is what the headline leads with, so Breakthrough is the correct primary tag.
Steal this
Anchor the before-state in a single, specific data observation (the Amplitude retention chart showing 80% drop-off in 30 minutes) rather than a vague pain point. It makes the subsequent test feel inevitable and the result credible.
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