Keitaro vs Voluum: the self-host vs cloud question hides a more expensive one

New compare up. This one finally puts the self-hosted vs cloud debate back on the table, because Keitaro and Voluum sit on opposite sides of it.

Keitaro: self-hosted, flat license from €49/mo, your data on your own box, no event meter, but you run and patch the server. Voluum: managed cloud, no server to touch, native FB/Google/TikTok integrations, but those integrations don't show up until the Start-up tier at $539/mo billed annually, and events are metered underneath.

The honest cost comparison isn't €49 vs $149. It's a flat license plus a server you maintain, against a Voluum tier several times higher plus a meter. For CAPI + cost sync, the self-hosted side is much cheaper in raw dollars; you pay in ops load instead.

But the article's real argument is that the whole own-vs-rent question decides how you pay and who runs the box, and nothing else. It doesn't touch the two numbers that set your CPA: both tools forward the same 5 of Meta's 15 match params, and neither syncs a refund back to the ad platform. You can win the hosting argument and still send a thin, uncorrected signal.

Full breakdown with the 24-month cost math and the signal-depth table:

https://clickervolt.com/compare/keitaro-vs-voluum/?v1=reddit&v2=organic&v3=teaser-20260713