IdeaNook

Private, fully on-device notes

Only for iPhone

$1.99 · Designed for iPhone. Not verified for macOS.

iPhone

AI can generate endless content—but your inspiration is yours alone. IdeaNook builds private silicon memory on your iPhone. Offline capture, local AI, zero cloud. IdeaNook is a fully on-device, private idea journal. AI can generate endless content—but your inspiration belongs only to you. Capture fleeting sparks and refine them into private silicon memory on your iPhone. Not lost in chat logs. Never uploaded to the cloud. ■ Chat-style capture When inspiration strikes, just send it. Type, snap a photo, or hold to record voice — everything flows into one idea stream, with full-screen image zoom. ■ Full-text search Lightning-fast local search with filters by text, type, and category. Keyword highlighting and tap-to-jump back to the original message. Works immediately after install — zero network, zero latency. ■ On-device AI (optional) When enabled, intelligence runs on your iPhone — no cloud API is ever called: · Auto-categorization into 10 smart categories: Work, Study, Life, Ideas, and more · Speech-to-text: hold to talk; transcripts are searchable and categorizable · Image understanding: on-device semantic descriptions for your photos · Digests: daily / weekly summaries, manual triggers, or long-press "summarize from here" ■ Privacy is the baseline No network permission. Data never leaves your phone. No account required. Photos write-only; microphone and camera on demand. AI is optional. Capture and search work perfectly without it. How to enable AI: · Apple Intelligence (recommended): no large model download on supported devices — Settings → AI Engine · Gemma offline path: agree to terms and download ~2.4 GB once in Settings Requires iOS 26.0 or later.

Ratings & Reviews

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v1.2 — When inspiration strikes, make it yours to keep AI can generate almost anything—but a fleeting spark belongs only to you. This update helps every kind of idea get captured, understood, and preserved as private silicon memory that lives only on your iPhone. · Hold to talk with on-device speech-to-text — voice memos are now searchable, categorizable, and included in digests · Automatic image understanding: on-device semantic descriptions and categorization for photos · Apple Intelligence support: AI categorization and summaries with no large model download on supported devices · Richer digests: text, voice transcripts, and image descriptions in daily / weekly summaries · Gemma offline model remains available as a full fallback path Capture comes first. Your inspiration, embodied — kept only on your iPhone.

Version 1.2

The developer, 宏润 王, 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
    • 宏润 王
    Size
    • 58 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    4+
    Copyright
    • © 2026 Hongrun Wang
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

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