Twiddle Chat

AI chat with your own API keys

$0.99 · Designed for iPad. Not verified for macOS.

Twiddle Chat is a mobile chat app for people who want to use their own API keys. No in-app subscription: you bring your own keys and keep full control over cost and privacy (provider terms apply). **Bring your own keys (BYOK)** Use your own API keys for Gemini, OpenAI, OpenRouter, and Anthropic—no in-app subscription. You keep full control over costs, pay only what you use with your provider, and benefit from a more privacy-friendly setup (your data goes only to the providers you choose; each provider’s terms and conditions apply). **Chat with multiple AI providers** Choose from Wikipedia (no API key needed), Gemini, OpenAI, OpenRouter, and Anthropic. Add your API keys in Settings and pick your favourite models. Model selection and favourites sync across devices. **Familiar chat experience** Send messages and get streaming replies. Tap bold words in replies to ask follow-up questions. Optional system prompt and reasoning toggle. Copy or regenerate responses, export conversations as text, and manage chats: rename or delete them. Stop generation anytime. **Wikipedia built in** Search Wikipedia and read summaries. Tap search results or highlighted terms to dive deeper. Single-article answers include a “View on Wikipedia” link. **Sync and control** Conversations and settings (model, system prompt, API keys) sync via iCloud. Your keys stay on your devices; the app talks directly to provider APIs.

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The developer, Sascha Bienert, 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 Collected

    The developer does not collect any data from this app.

    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
    Sascha Bienert
    Size
    7.8 MB
    Category
    Utilities
    Compatibility
    Requires iOS 26.2 or later.
    • iPhone
      Requires iOS 26.2 or later.
    • iPad
      Requires iPadOS 26.2 or later.
    • Mac
      Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.2 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Sascha Bienert
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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