# Moonstone – AI Diary & Journal — AI Notes, To-dos & Life Log > AI Notes, To-dos & Life Log (iPhone/iPad app by Hunan Xizi Culture Co., Ltd..) - Source: https://appshunter.io/ios/app/moonstone-ai-diary-and-journal/id6751176435 (this page in markdown: same URL + `.md`) - Developer: [Hunan Xizi Culture Co., Ltd.](https://appshunter.io/developer/1783447883) - Category: Utilities, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 16.6 · 16 MB - Languages: Dutch, English, French, German, Greek, Italian, Japanese, Korean, Portuguese, Russian and 3 more - Released: 2025-09-01 - Data updated: 2026-05-18 - User reviews in markdown: https://appshunter.io/ios/app/moonstone-ai-diary-and-journal/id6751176435/reviews.md ## What is Moonstone? Moonstone — Your Lifetime AI Diary System. In Moonstone, you can keep writing diaries just like always—say a few words, or jot down a few lines. AI will automatically organize your to-dos, expenses, key people, and events, turning everyday moments into your personal life encyclopedia. Core Features • AI Analysis: Extracts to-dos, expenses, people, and events directly from your diary. • Life Management: A single sentence creates a to-do item or expense entry. • Timelines of Events & Relationships: Gatherings, trips, romance—all become clear storylines. • Smart Search: Find memories through keywords or semantic queries. • Local & Secure: All data stays on your device and iCloud, never sent to third-party servers. Use Cases • Private Social Feed: Your own secret social space, free from outside pressure. • Romance Diary: Record love stories, AI turns them into a “Sweet Memory Book.” • Tree Hole for Introverts: A safe, judgment-free space to pour your thoughts. • Organizer for Extroverts: To-dos, expenses, and schedules are naturally captured while writing. • Growth & Learning Journal: Travel notes, reading reflections, inspirations—gradually forming your personal encyclopedia. Privacy Promise Moonstone is built on the principle: your data belongs only to you. All diaries are stored solely on your device and iCloud—safe, private, and reliable. Moonstone — AI Diary · Journal · Notes Moonstone is your AI-powered diary app for journaling, note-taking, and life management. Just write a few words or lines, and AI will automatically organize to-dos, expenses, events, and memories—turning your daily life into a personal encyclopedia. Core Features • AI Diary & Notes: Extracts tasks, expenses, people, and events directly from your entries. • Life Management: Create to-do lists or expense records with a single line. • Event Timeline: Gatherings, trips, romance—AI builds your life storylines. • Smart Search: Find memories instantly with keywords or semantic search. • Local & Secure: Data stays on your device and iCloud, never sent to third parties. Use Cases • Private Social Feed: A secret diary space, free from social pressure. • Romance Diary: Capture love stories, AI creates a Sweet Memory Book. • Tree Hole for Introverts: Write freely in a safe, judgment-free journal. • Organizer for Extroverts: To-dos, expenses, and schedules captured naturally. • Growth Journal: Travel logs, study notes, inspirations—your life journal. Privacy Promise Moonstone is built on one principle: your data belongs only to you. Moonstone — AI Diary · Journal · Notes Moonstone is your AI-powered diary app for journaling, note-taking, and life management. Just write a few words or lines, and AI will automatically organize to-dos, expenses, events, and memories—turning your daily life into a personal encyclopedia. Core Features • AI Diary & Notes: Extracts tasks, expenses, people, and events directly from your entries. • Life Management: Create to-do lists or expense records with a single line. • Event Timeline: Gatherings, trips, romance—AI builds your life storylines. • Smart Search: Find memories instantly with keywords or semantic search. • Local & Secure: Data stays on your device and iCloud, never sent to third parties. Use Cases • Private Social Feed: A secret diary space, free from social pressure. • Romance Diary: Capture love stories, AI creates a Sweet Memory Book. • Tree Hole for Introverts: Write freely in a safe, judgment-free journal. • Organizer for Extroverts: To-dos, expenses, and schedules captured naturally. • Growth Journal: Travel logs, study notes, inspirations—your life journal. Privacy Promise Moonstone is built on one principle: your data belongs only to you. All entries are stored locally and synced via iCloud—private, secure, reliable. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Annual Membership | $14.99 | per year | ## Version history (last 5 releases) ### 6.0 — 2025-09-12 1.Optimized diary loading speed 2.Improved sync performance 3.Added theme management feature 4.Introduced new “Vibrant Orange” theme color ### 1.0.9 — 2025-09-07 1.Enhanced multi-scenario functionality in the calendar menu 2.Improved task filtering on the to-do page 3.Optimized synchronization with Apple Reminders 4.Improved iCloud sync to prevent duplicate synchronization ### 1.0.6 — 2025-09-05 Added support for 11 new languages: 1. Spanish 2. French 3. German 4. Italian 5. Portuguese 6. Russian 7. Japanese 8. Korean 9. Dutch 10. Thai 11. Turkish ### 1.0.5 — 2025-09-03 1.Extended free membership period for new users 2.Fixed membership verification function ### 1.0.4 — 2025-09-02 1.Added support for iOS 16 2.Optimized iCloud sync functionality ## Apps similar to Moonstone | App | Rating | Price | Category | | --- | --- | --- | --- | | [Transcribe Audio to Text: v2md](https://appshunter.io/ios/app/transcribe-audio-to-text-v2md/id6744820344) | 4.6 (23) | Free | Utilities | | [JotItNow](https://appshunter.io/ios/app/jotitnow/id6742083186) | 2.5 (2) | Free | Utilities | | [SnapClean - Photo Cleaner](https://appshunter.io/ios/app/snapclean-photo-cleaner/id6739863686) | 5.0 (1) | Free | Utilities | | [Timenotes: Note with Timestamp](https://appshunter.io/ios/app/timenotes-note-with-timestamp/id6468954187) | 5.0 (5) | Free | Utilities | | [Focusti : pomodoro timer](https://appshunter.io/ios/app/focusti-pomodoro-timer/id6477852193) | — | Free | Utilities | | [Caffi - Caffeine Tracker](https://appshunter.io/ios/app/caffi-caffeine-tracker/id6742565772) | 4.8 (32) | Free | Utilities | ## More apps by Hunan Xizi Culture Co., Ltd. - [拍照学意语 – AI意大利语学习·背单词口语对话](https://appshunter.io/ios/app/ai/id6743345501) - [谈案宝-AI律师谈案助手](https://appshunter.io/ios/app/ai/id6755720900) - [HearRed](https://appshunter.io/ios/app/hearred/id6757864447) All apps by Hunan Xizi Culture Co., Ltd.: https://appshunter.io/developer/1783447883 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-18.*