Zhihu++ is a lightweight Android client for the Chinese Q&A platform Zhihu, replacing the official 110MB+ app with one under 4MB. It implements a local-only recommendation algorithm independent of Zhihu’s servers, allowing users to customize content weighting. A key feature is on-device AI inference via ONNX runtime, providing LLM embedding-based intelligent content filtering including AI-powered answer blocking, all performed offline without network calls.