LLMster vs OpenChat Connect

Local AI, in your pocket. LLMster is a fast, private iPhone and iPad client for models running on your LM Studio server (https://lmstudio.ai). Stream replies, reasoning, tool activity, and image-based conversations from the models you host—in an app designed to feel at home on iOS. Private by design LLMster connects directly to the server you choose. There’s no LLMster account, telemetry, hosted chat service, or cloud relay in the middle. Your conversation library stays on your device, while model context stays with your configured server. External integrations run only when you choose to enable them. Your models, wherever you run them Keep your models on the machine built for them: a workstation, home server, or always-on computer. Run the LM Studio desktop app or LM Studio’s headless daemon, point LLMster at the host, and start chatting. No companion desktop client is required. Choose the right model without leaving the conversation: • Search or sort by name, size, or format, then pin favorites • See which models support vision, reasoning, or tool calls • Change models without starting a new chat Organized from the start Search chats by title, model, or folder. Browse recent conversations across every folder, then organize, rename, pin, or duplicate important threads. Move and protect your chats Share individual conversations as .llmster files and import them on another device while preserving messages, images, reasoning, tool history, and chat settings. Back up and restore your entire local chat library—including folders, pins, drafts, and attachments—with optional password protection. Backups do not include server addresses, authentication keys, or app-wide settings. LLMster also verifies transferred response context against your configured LM Studio server before continuing a chat. Vision, direct to your server Attach up to four screenshots, photos, or scanned pages to a message and send them to a compatible vision model. LLMster resizes and compresses images on your device before sending them, so the originals remain with you. Open any attachment and pinch to zoom when you need to inspect the details. Hands-free voice chat Talk naturally using on-device speech recognition and text-to-speech. Audio stays on your device; only the resulting text is sent to your configured server. Natural turn-taking and subtle haptics keep the conversation moving without touching the screen. Control each conversation Every chat can have its own: • Integrations already configured in LM Studio • Custom system prompt • Tool-call visibility • Live reasoning preference Stream reasoning as Markdown while the model works, or keep the interface quiet with a compact Thinking indicator and open the completed reasoning when you want it. Control response auto-scrolling, and choose System, Light, or Dark appearance with your preferred accent color. Rich responses, as they arrive LLMster renders streaming Markdown smoothly, including syntax-highlighted code with copy controls, inline and block math, tables, links, lists, and more. Export or share transcripts with their original Markdown intact. Keep going while you move on LLMster asks iOS to continue eligible responses after you leave the app. When the system starts continued processing, progress appears as a Live Activity on the Lock Screen and, on supported iPhones, in the Dynamic Island. When a background response completes, LLMster can notify you locally—without routing your conversation through a push server. Tap a notification or Live Activity to return to the correct conversation. Setup instructions are available at https://llmster.app/support

OpenChat Connect is a free native iOS app with two ways to chat. Download a model and talk to it on your iPhone. Or bring your own API key and use OpenAI, Claude, Gemini, OpenRouter, or any custom endpoint. No OpenChat account. No lock-in. On this device Version 1.2.0 adds curated MLX downloads from Meta, Qwen, and Phi. Pick Fast, Balanced, or Strongest, then choose the On This Device provider. That chat runs on the iPhone. You do not need an API key for it. Your key, any model Paste a key and use OpenAI, Claude, Gemini, OpenRouter, or a custom OpenAI-compatible endpoint, including Ollama, LM Studio, or vLLM. The same key setup also covers Mistral, DeepSeek, cloud Qwen, Moonshot, Z.ai, and 01.AI. Pick the model that fits the task. Switch later. The app does not lock you to one provider. One app either way Chats, rules, memory, and skills are stored on the device. You can set global rules and per-chat rules, edit memory, and run a skill with / in the composer. Web search is optional and uses your own search key (Tavily, Exa, Brave, Serper, or SerpAPI). The app can render streaming Markdown and code, send a photo to a vision-capable model, and finish a cloud reply in the background with a local notification. Private by design OpenChat has no backend, no account, and no analytics. On-device model chats are not sent to a cloud model provider. When you choose a cloud model, that message goes from your iPhone straight to the provider you picked. OpenChat does not sit in the middle. API keys and search keys stay in the iOS Keychain. The app is free. Cloud usage is billed by the provider on your key, not by OpenChat. On-device chats do not use a provider key. App Store: https://apps.apple.com/us/app/openchat-connect/id6798106079 Source (MIT): https://github.com/robert-garay/openchat Support: robert@genion.ai