Petalline: Mood Journal

Private, offline & encrypted

Only for iPhone

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

iPhone

Your journal never leaves your iPhone. Private, encrypted mood tracking with on-device AI insights — one payment, no subscription, ever. No account. No cloud. No ads. No subscription. Your journal never leaves your iPhone — and we built it so it literally can't. Petalline is a calm, private space to check in with yourself each day: how you feel, your energy, how you slept, a few tags, and a line or two. Everything is encrypted on your device with a key only you hold. A GENTLE DAILY CHECK-IN • Log mood, energy, sleep and tags in seconds. • A quiet streak keeps the habit alive — no guilt, no nagging. • Missed a day? Backfill any date from the calendar. SEE YOUR MOODS TAKE SHAPE • A month-at-a-glance heatmap colors each day by how you felt. • Mood-over-time charts and tag correlations show what lifts you — and what weighs on you. PATTERNS, FOUND ON YOUR DEVICE • On-device AI writes warm, private reflections on your week. No cloud, no API, nothing uploaded. • Every statistic is computed locally. We never see a single word. PRIVATE BY DESIGN • End-to-end encrypted with AES-256. The disk only ever holds ciphertext. • No account, no tracking, no analytics, no third-party SDKs. • Export a passphrase-protected backup — or a readable Markdown copy — anytime. • Optional Face ID / passcode lock, and a Home Screen widget that shows only your streak, never your words. ONE PAYMENT. YOURS FOREVER. Unlock insights, on-device reflections and encrypted export with a single purchase. No subscription, ever — and every future update is included. Made for anyone who wants to understand themselves a little better, without handing their inner life to a company. Questions or feedback? Email pocketai1@outlook.com — we read every message.

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The developer, 博 袁, 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

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    Accessibility

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    Information

    Seller
    博 袁
    Size
    2.2 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.0 or later.
    Languages
    English and 7 more
    • English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Oldcirle
  • Privacy Policy

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