Prism vs Tether

Prism is a native AI workspace for running models locally on iPhone and iPad. Chat with Apple Intelligence on supported devices, or run downloaded and imported GGUF models through llama.cpp. Prism keeps conversations, model files, and settings on your device, without requiring an account, subscription, or cloud inference service. Use Prism to: - Chat with local models in a polished native interface - Choose from a curated model library - Download models in the background - Import GGUF files from Files or direct URLs - Reopen and search local conversation history - Export chats as Markdown or JSON - Inspect prompts in Developer Mode - Tune inference settings like context, temperature, top-p, top-k, repeat penalty, and max tokens - Track generation stats and per-model performance Prism is built for developers, local AI enthusiasts, prompt tinkerers, and privacy conscious users who want control over the model running on their device. Once a supported model is available locally, Prism is designed around on-device use. Internet access is only needed for model acquisition flows such as downloading from a curated source or direct model URL.

Tether is an app designed for Linux users running custom desktop environments (Wayland). It provides essential ecosystem integration between your mobile device and your workstation, operating entirely over your local Wi-Fi. There are no cloud servers, third-party services, or accounts required. All data is routed strictly on your local network and secured with end-to-end mTLS encryption. Features: • Shared Clipboard: Sync clipboard text bi-directionally between your iPhone and your Linux machine. • File Transfers: Send documents, photos, and archives directly to your desktop, or receive files from it. • Local Discovery: Uses mDNS/Bonjour to automatically find your desktop - no static IP configuration needed. • Encrypted Connections: Device pairing and all network traffic are secured via mutual TLS certificates. Note: Tether is the iOS client app. To use it, simply run the free, open-source Tether desktop application (available as a CLI or GTK app) on your Linux machine. Visit the project's repository to download it and get started.