Lebesgue is a marketing analytics platform built for eCommerce brands that combines ad-spend auditing, attribution, and customer lifetime value analysis in one dashboard. Founded in 2020 by Josip Begić, a former head of growth who managed over $50 million in ad spend for YC-backed stores, the Croatian-founded, US-headquartered company built Lebesgue to catch higher-priced ad-campaign errors that manual reporting tends to miss.
The platform automatically audits ad campaigns using a brand's first-party data, tracks competitor marketing moves, and models customer lifetime value by acquisition channel, with its AI trained on more than $50 billion in cumulative ad spend across customers. A newer AI assistant, Henri, layers conversational analysis on top of the same underlying data.
Lebesgue fits eCommerce marketing teams and agencies that need channel-level attribution and LTV analysis without building a custom data warehouse. The Basic plan is free, Advanced costs $59 a month, and Ultimate costs $79 a month, with a 30 percent discount for annual billing across paid tiers.
Lebesgue starts at $59, which is 51% above the Marketing median of $39 a month across the 86 priced tools we list in that category.
The cheapest paid option in Marketing starts at $0.1 and the most expensive at $3,000.
29% of Marketing tools in the directory offer a free tier, and this is one of them.
Compared against every priced listing in Marketing, recalculated as the catalogue changes. Method and the full market breakdown are in our AI tool pricing study.
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