CLVTools vs Siftmo

CLVTools is a free, GPL-3-licensed R package for probabilistic customer attrition modeling when purchases are not governed by contracts. It implements Pareto/NBD, BG/NBD, Gamma/Gompertz/NBD, and Gamma/Gamma models. Using transaction histories with customer IDs and purchase dates, plus prices in its example data, it predicts individual customer behavior such as expected future transactions and the probability that a customer remains active. Forecast horizons can be configured, supporting predictive customer lifetime value work, cohort analysis, and customer segmentation. Time-invariant covariates work across the models, while some models accept time-varying covariates. Extensions include correlated purchase and attrition processes, L2 regularization, and equality constraints for contextual-factor parameters. Stable installation is available from CRAN; a development version uses GitHub and devtools. Linux, macOS, and Windows are supported, though compiling from source requires the external GNU GSL C++ library. Documentation includes a walkthrough, reference manual, and vignettes.

Siftmo is a web app that analyzes Shopify order history to report on customers, products, and store performance. It groups customers by behavior into two to eight named personas. Ask AI turns plain-English prompts into customer filters that can be inspected, edited, saved, shared, and exported to CSV.

Customer analytics include six lifetime value views, customer-level percentiles and order histories, and 18 live segments. Product and variant analytics cover gross profit, net quantity, discounts, returns, percentile rank, and frequently bought-together products. Siftmo provides 15 reports with interactive charts, tables, prior-period and year-over-year comparisons, and CSV export. Integrations listed include Shopify, Google Analytics 4, and Facebook Ads. Organization-level reporting can span unlimited stores and users, with no per-seat pricing. The free Starter plan covers up to 50 monthly orders; paid plans start at $29/mo. All plans include a 7-day trial without a required credit card.