Seline is a lightweight, privacy-first website analytics tool that combines marketing-site analytics, product and event tracking, and revenue attribution in one workspace. A small tracking script follows visitors from first visit through product usage and payments, so you can build funnels, view visitor profiles and journeys, and attribute revenue without cookie banners. It is GDPR-compliant and EU-hosted, and the deal includes unlimited websites on every tier, with only the monthly page-view limit changing between tiers.
The AppSumo deal has five lifetime tiers, all mapping to the vendor Pro plan: Tier 1 ($59) covers 25,000 page views per month, Tier 2 ($129) covers 125,000, Tier 3 ($289) covers 275,000, Tier 4 ($399) covers 550,000, and Tier 5 ($599) covers 1,000,000. AppSumo marks Tier 3 as recommended. All tiers include profiles and journeys, revenue analytics, ad-blocker bypass, advanced bot detection, a public API, live view, Seline AI, cookieless tracking, shareable dashboards, and 3 year data retention. Of 9 AppSumo reviews, 8 are 5 tacos and 1 is 4 tacos, all dated between 30 September and 15 October 2026.
The vendor sells a single Pro plan with every feature included, priced by monthly events (page views and custom events share one limit): $14 a month for 25,000 events, or $11 a month billed yearly. Its regular Pro plan keeps data forever, while the deal includes 3 year data retention. The deal tiers do not line up exactly with the vendor's event steps, so no yearly regular price is stated here. Seline is a bootstrapped team in Warsaw, Poland, founded in July 2024.
