IObit

IObit is a software company that develops utility programs for Windows and macOS. It is best known for its PC optimization and security tools, offered in free and paid editions. The company markets products aimed at system cleanup, software management, security, and performance enhancement.

Notable products include Advanced SystemCare, IObit Uninstaller, Driver Booster, Smart Defrag, IObit Malware Fighter, MacBooster, IObit Software Updater, and Game Booster. These tools cover tasks such as system optimization, program removal, driver updates, disk defragmentation, malware protection, and gaming performance improvements.

IObit has a global user base and operates primarily from China, distributing software via its official website and regional channels. Since its early years, it has expanded from Windows-focused utilities to macOS offerings through products like MacBooster and related utilities.

Reception of IObit's software has been mixed in some periods. The company has faced criticism regarding installer behavior and marketing practices common to freeware, such as bundled offers during installation. IObit states it strives to provide user-consented installs and transparent upgrade options. Overall, reviews frequently note that the tools provide practical maintenance capabilities, while users should exercise standard caution with installers.