Greenlight Guru Clinical does not offer a permanent free tier. According to G2's pricing data for Greenlight Guru Clinical, a free trial is available for teams evaluating the system before committing to a paid plan. Greenlight Guru Clinical's paid plans are structured around custom enterprise quotes, meaning pricing is negotiated based on study complexity, user count, and organizational needs. G2 reviewers note that the paid access unlocks full eCRF building, eConsent, audit trails, randomization modules, file vaults, API integration, and responsive support — capabilities central to regulated clinical trials that would not be accessible during a limited trial evaluation period.