Principia: Smart AI Studio

Your Personal AI Studio

Free · Designed for iPad

Principia — Your private, customizable AI assistant for chat, writing, coding, learning, and productivity Discover an AI assistant that adapts to you — not the other way around. Principia gives you full control of powerful AI models for text: choose the best model for the task, fine-tune how it behaves, and keep everything private on your device. What Principia does best * Pick your AI brain: switch between world-class text models for fast answers, deep analysis, creative writing, or code generation. * Customize behavior: set temperature, define custom system prompts, and give the AI a role or personality so it thinks and speaks the way you want. * Smart conversations: chat naturally about any topic, follow up on previous answers, and get context-aware responses. * Creative writing: draft emails, stories, poems, pitches, and marketing copy with ease. * Coding help: write, debug, and explain code across languages and frameworks. * Learning & research: summarize articles, explain concepts, translate, and test your understanding. * Productivity tools: brainstorm, plan projects, organize tasks, and generate outlines or checklists. Privacy-first by design * Account creation is optional. * All chats and settings are stored locally on your device — no cloud storage unless you choose it. * No data sharing: your conversations stay private. Fair, flexible access * Get free credits with short, non-intrusive ads. No subscriptions or hidden fees. Why Principia? * Customizable, role-driven AI chat for every use case * Powerful text and code capabilities from top AI models * Private, secure, and local-first * Free to start and flexible to scale * Regular updates and new features Coming soon * We’re actively developing image and video features and advanced image understanding — stay tuned for future releases. Download Principia now and experience a smarter, more personal AI assistant that works the way you do.

  • 2.0
    out of 5
    2 Ratings

- Added the latest frontier models to the available list. The list will now update automatically without requiring an app update. - Fixed minor bugs to improve stability and performance.

The developer, Edgar Zuniga, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers
  • Data Not Linked to You

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

    • Usage Data

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

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

  • Seller
    • Edgar Zuniga
  • Size
    • 43.8 MB
  • Category
    • Utilities
  • Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    English and 12 more
    • English, Dutch, French, German, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Turkish
  • Age Rating
    13+
  • Copyright
    • © Copyright (c) 2025, Principia-Tech