Side by side

PyMC-Marketing vs Siftmo

Both stand on customer lifetime value software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

PyMC-Marketing

Free plan LinuxSelf-hosted

PyMC-Marketing combines Bayesian MMM and customer analytics models with calibration, prediction, and budget allocation tools. Its documented software requirements make the Python environment a key fit consideration.

Visit PyMC-Marketing

Siftmo

Free plan Web

Siftmo brings customer segmentation, product metrics, and store reporting together for Shopify operators. Review the order thresholds, since plan selection and upgrade prompts are tied to monthly order volume.

Visit Siftmo

The facts

	PyMC-Marketing	Siftmo
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Linux, Self-hosted	Web
Lowest paid plan	Free or on request	Growth: $29 a month
Plans published	1	5
Maker	Not published	Not published
Website	pymc-marketing.io	siftmo.com
On customer lifetime value software	#10 of 37	#14 of 37

PyMC-Marketing: what it does well

Free and open source under Apache 2.0.
MMM includes diagnostics and out-of-sample predictions.
Supports empirical experiment calibration and budget optimization.
Includes customer lifetime value and segmentation models.
Offers multiple NUTS samplers and GPU acceleration.

What to know first

Requires Python 3.12 or later.
Requires PyMC 6.0 or later.
Requires ArviZ 1.2 or later.

Siftmo: what it does well

Creates two to eight customer personas.
Ask AI makes editable, shareable customer filters.
Provides 15 reports with comparisons and CSV export.
Supports unlimited stores and users without per-seat pricing.
Trial requires no credit card.

What to know first

Starter is limited to 50 monthly orders.
Plans are selected based on recent order volume.
Two consecutive months over a plan limit prompt an upgrade contact.

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