OpenChat Connect vs Mocca

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

Mocca is a native AI chat client for iPhone. Connect your preferred model provider, create your own assistants, and chat, write, and explore ideas in one simple space. Make it your own • Connect compatible model providers with your own API keys • Create one-to-one conversations and group chats with multiple assistants • Share images and files, with support for Markdown, syntax-highlighted code, math, and tables • Use optional web search, speech playback, and MCP tools • Customize assistant prompts, recent memory, and worldbooks • Keep track of background generation with Live Activities • Store chats locally on your device, with import, export, and backup options Mocca is a client, not a model service. You will need a compatible third-party provider and your own API key. Provider availability, supported features, and usage charges depend on the service you choose. You can also support development with optional tips. Tips do not unlock additional chat features and do not renew automatically. Your first purchase at a given tier includes a permanent commemorative cosmetic; repeat purchases at that tier do not add new cosmetics.