Accessibility Inspector vs Optick

Accessibility Inspector is Apple’s free macOS tool for examining accessibility information in app interfaces. It displays an element’s accessibility properties, available actions, and position in the view hierarchy. Audits identify common issues such as insufficient contrast, clipped text, and missing descriptions. Results can be saved as HTML reports containing summaries, screenshots, issue descriptions, and fix suggestions. Accessibility audits can also run in UI tests through performAccessibilityAudit(for:_:). The target menu includes apps on Mac and selected iOS, iPadOS, watchOS, or tvOS devices. Open it from Xcode through Xcode > Open Developer Tool > Accessibility Inspector. Apple’s listing describes Xcode as Mac-only, requiring macOS 26.2 or later and an Apple M1 chip or later, and labels it Free. Clearing reported issues does not prove complete accessibility; Apple recommends additional checks with assistive apps such as VoiceOver.

Optick is a free C++ profiler for game performance analysis and optimization. Its tools include instrumentation, context-switch tracing, sampling, CPU profiling, frame-time analysis and GPU counters. Developers can integrate it with OPTICK_FRAME, OPTICK_EVENT and OPTICK_THREAD macros. Context tracing uses ETW on Windows, FTrace on Linux and DTrace on macOS; GPU profiling supports D3D12 and Vulkan on Windows, and Vulkan on Linux and macOS. Desktop build configurations are listed for Windows x64, Linux x64 and macOS x64. Optick also offers Unreal Engine 4 and Unreal Engine 5 plugins; its v1.4.0 release added Unreal Engine 5.0 support, and Android support in the core appears in v1.3.0 release notes. The configuration header can enable or disable features for particular platforms or builds, including disabling Optick in final builds. With multiple DLLs in one executable, Optick must be added to a shared dynamic library compiled with OPTICK_EXPORT; static linking will not work. The MIT license permits use, copying, modification, publication and distribution, and provides the software without warranty.