Grovs is a first-party growth engine for mobile and web apps. It provides deterministic attribution, deep linking, revenue analytics, campaign measurement, and in-app messaging — without sharing data with third parties. Unlike legacy MMPs (AppsFlyer, Branch, Adjust), Grovs uses only first-party deterministic attribution with zero fingerprinting or probabilistic guessing. The SDK and attribution engine are fully open source on GitHub. All data is EU-hosted by default (Schrems II compliant) with a free self-hosted option for full data sovereignty. Features include: deferred deep links, smart banners, QR codes, custom domains, install/event tracking, subscription revenue analytics (MRR, LTV, churn, ROAS), multi-touch attribution, in-app messaging, push notifications, and user segmentation. Transparent pricing at $1.99/1K MAU with a free tier (10K MAU). Revenue analytics included in all plans. iOS, Android, and Web SDKs under 400KB.