opchat: Private On-Device AI

Multi-provider BYOK assistant

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

opchat lets you chat with all major AI models in one place — using your own API keys or running models directly on your device. Your API keys stay on your device, encrypted with secure storage. Your conversations are sent directly to the AI provider you choose and never pass through our servers. We don't collect, store, or have access to your chats. No middleman, no subscriptions, no data harvesting. BRING YOUR OWN KEYS Connect OpenAI (GPT), Anthropic (Claude), Google (Gemini), DeepSeek, OpenRouter, Straico, Azure, Ollama, or any OpenAI-compatible endpoint. Switch between models mid-conversation or set a default per persona. ON-DEVICE MODELS Run AI models directly on your device — completely offline, no API key needed. Browse and download GGUF models from Hugging Face. Your data never leaves your phone. Perfect for privacy-sensitive use or when you're offline. CUSTOM PERSONAS Create AI assistants tailored to your needs. Set a system prompt, personality, speaking style, knowledge areas, and conversation starters. Build a research analyst, a coding mentor, a creative writing partner — whatever you need. BUILT-IN TOOLS • Web Search — real-time results via Serper or Tavily • Image Generation & Editing — create and refine images with AI • Voice — speech-to-text input and text-to-speech output • Memory — the AI remembers context across your conversations • MCP Servers — extend with custom tools via Model Context Protocol ORGANIZE YOUR WORK Group conversations into projects. Pin important chats. Search across all your history. Export conversations as Markdown or JSON. FULLY CUSTOMIZABLE Choose from multiple themes (Claude, GPT, Perplexity, Code) or create your own with custom colors. Pick from 23 fonts. Adjust message density, roundness, and font size. PRIVATE BY DESIGN Zero tracking. Zero analytics. Your API keys are encrypted on-device. Conversations go directly to your chosen AI provider — we never see them. Use on-device models or Ollama for fully offline, local AI with no data leaving your phone. AI-GENERATED CONTENT All responses are generated by third-party AI models and may be inaccurate or incomplete. Content safety is enforced by each provider's built-in policies. You can report any AI-generated response directly within the app. Terms of Use: https://opchat.app/terms Privacy Policy: https://opchat.app/privacy

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What's new: • Codex (ChatGPT Subscription) — sign in with your ChatGPT account and use Codex models like gpt-5.5, gpt-5.4 and gpt-5.3-codex without an API key • Refreshed provider picker with real brand logos • Smoother onboarding animations and transitions • System language is now correctly detected on first launch for all supported languages • Bug fixes and stability improvements

Version 1.1.4

The developer, Przemyslaw Klosek, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • User Content
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Przemyslaw Klosek
Size
  • 60.9 MB
Category
  • Productivity
Compatibility
Requires iOS 16.4 or later.
  • iPhone
    Requires iOS 16.4 or later.
  • iPad
    Requires iPadOS 16.4 or later.
  • Mac
    Requires macOS 13.3 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
13+
  • 13+
  • Learn More
  • Infrequent
    Cartoon or Fantasy Violence
    Realistic Violence
    Profanity or Crude Humor
    Mature or Suggestive Themes
    Horror/Fear Themes
    Medical Treatment information
    Alcohol, Tobacco, Drug Use or References
    Guns or Other Weapons

    Contains
    Health or Wellness Topics
In-App Purchases
Yes
Copyright
  • © INSCODE 2026
  • Privacy Policy

    • More by Przemyslaw Klosek

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