4D_Additive vs Lychee Slicer

4D_Additive has no write-up on Specifiction yet; its figures are above.

Lychee Slicer prepares 3D models for resin and filament printing, with tools for supports, hollowing, print-setting previews and printer configuration. It runs on Windows, macOS and Linux, and Lychee says it supports more than 750 printers. Resin features include custom support structures, exposure settings, grid supports, AR preview and one-click hollowing. Filament tools include printer profiles, support management, seam optimization and real-time preview. Compatible filament printers can communicate through Klipper or OctoPrint; Wi-Fi sending depends on the printer model. Lychee Library is integrated into the slicer and offers pre-supported models from creators. The product describes cloud synchronization of settings across machines and automatic local backups. Lite is free, with limited Multi-Plate and ads on export. Plus is billed at €99.90 + local taxes yearly (€8.33 / month). Plus & Library is billed at €199.90 + local taxes yearly (€16.66 / month), and includes unlimited model downloads. Library models cannot be used commercially without creator approval.