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@ Retention Marketers
About

What this site is

A reference for people choosing and running email and retention tooling, assembled from what the platforms and other publishers have actually put in writing.

What gets published here

Pages that work through what the platforms have actually put in writing — their help documentation, their published reports, their pricing pages — and say plainly what each figure measures, who it applies to, and where it stops applying.

Vendor documentation is precise about the mechanical parts of a product and quiet about the rest. Reading the two against each other is most of the work here, and it is where the useful answers are.

Pages land at a steady cadence rather than in bulk. A page that stops being true gets fixed or taken down.

The rules every page is held to

  • Every figure carries the source that published it, that source's own date, and the date it was read.
  • Where two sources disagree, the page shows the disagreement instead of averaging it away or picking the more convenient one.
  • Where the data does not exist, the page says so and leaves the question open.
  • A figure carried by only one source is attributed to that source in the sentence, never stated flatly as established fact.
  • No star ratings and no scores out of ten. A score compresses a dozen judgements into one number and hides all of them; the figures here stay attached to what they measure.

The full method, including the four statuses a claim can carry and the minimum sourcing per page, is on the methodology page.

Vendor pages and the limits of vendor data

Much of the usable data in this category is published by the platforms themselves, about their own customers. That data is worth reading and it is used here — but two vendors' reports are not interchangeable and cannot be averaged, because each describes a different population under definitions neither publishes. Pages here say that where it applies rather than quietly combining the numbers.

Getting something corrected

If a figure here is wrong, out of date, or missing the context that changes what it means, the corrections policy covers how to raise it and what happens next.