KISSlicer vs Polar Cloud

KISSlicer turns STL files into printer-ready G-code and is a slicer, not a printer control app. Four Profile Wizards help configure printer, material, style, and support settings. Automatic support generation, resin slicing, and variable layer height are supported. The free plan costs nothing and allows multi-extruder printers to be used, but only one extruder can be selected for a print. Pro costs $42, paid once and enables multi-material printing, with extruders assignable to the raft, support, model, and sub-meshes. Premium costs $82, paid once and includes Pro functionality alongside listed features such as colorized meshes, texturing, dynamic density and gyroid infill, warp compensation, and curved surfaces. Profiles can be shared, and Project Files can archive print settings. The software supports Windows, macOS, and Linux; downloads are also listed for FreeBSD and Raspberry Pi. Its license permits commercial use and installation on multiple personal computers, with no time or model-size limit, and prohibits reverse engineering.

Polar Cloud is a cloud platform for preparing and managing 3D printing workflows. Users can slice STL files in a browser, including from Chromebooks, iPads, and laptops, then queue jobs and monitor prints remotely. The service also lets users pause or cancel prints. Its Image to 3D tool turns uploaded photos into printable models, and paid plans include AI credits. Design workflows connect with Tinkercad, Onshape, and Google Drive; printer connections include Bambu Lab and Prusa, as well as OctoPrint and Klipper plugins. Free iOS and Android apps support job monitoring, queue management, and notifications. The Free plan costs nothing and allows one printer and five print jobs per month, with seven-day history, 300 MB storage, mesh files only, and a 30 MB file limit. Individual plans are for personal use; larger fleets require Education or Enterprise plans. Polar Cloud is available on Android, iOS, Linux, macOS, web, and Windows. The company says it is FERPA and COPPA compliant and GDPR ready, and has not completed an independent SOC 2 audit.