May Diary vs Shadow Self
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
May Diary
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MayDiary is your personal space for safe and smart journaling. It combines classic diary writing with cutting-edge artificial intelligence technologies that help you better understand your experiences, emotions, and life patterns. KEY FEATURES: AI ANALYSIS & TRENDS: Get intelligent summaries of your past week, month, or year. MayDiary analyzes your moods, identifies key moments, and uncovers trends you might otherwise miss in regular text. SMART TRANSCRIPTION: Capture your thoughts faster than you can forget them. Use Appleβs lightning-fast local transcription or the advanced OpenAI cloud engine for precise formatting of dictated text. SMART TAGS: Organize your entries with fully integrated tags throughout the app. Add tags manually or let AI suggest them. You can then filter by tags or use them for more accurate AI analysis. NATURAL SEARCH: Canβt remember when you wrote about something? Just ask. The AI filter finds entries based on their actual meaning and topics, not just exact words. PRIVACY FIRST: Your diary belongs to you alone. Data is securely stored in the appβs sandbox and protected by iOS system encryption. If you use sync, entries are saved to your private iCloud database linked to your Apple ID. You can also secure access to your diary with Face ID or Touch ID. MODERN EDITOR: Enjoy a clean and clear environment with Markdown support for perfect structure in your notes. NO ADS, NO DATA COLLECTION: MayDiary was created as an independent project with a focus on user experience. The app is free, contains no ads, and your texts are never used to train AI models. WHY MAYDIARY? Unlike ordinary diaries, MayDiary helps you find meaning in your writing. Itβs a digital companion for personal growth that holds up a mirror and provides practical recommendations for your wellbeing and mental health. NOTE: To use AI features, you will need your own OpenAI key. Instructions can be found directly in the app.
Shadow Self
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There's a part of you that runs in the background shaping your choices, your reactions, your relationships without you ever seeing it clearly. Shadow Self helps you find it. Through Sage, an AI companion trained in Jungian psychology, you discover your shadow archetype: the hidden pattern beneath your behavior. Then you learn to work with it. What you get: Your shadow archetype from six Jungian archetypes Deep one-on-one conversations with Sage Journal to track patterns and breakthroughs Shadow work exercises tailored to your archetype Deep Analysis: behavioral patterns, root causes, integration plan Private by design. No account required. No data sold. Your conversations stay on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Shadow Self at none against May Diary's 3. Shadow Self also leads on iOS requirement (15.0 vs 18.4). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. May Diary sells 3 one-off in-app purchases. Shadow Self asks for nothing beyond the download.
May Diary ships an update every 10 days, Shadow Self every 6 days. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.
| Parameter | May Diary | Shadow Self |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Every 6 days β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 18.4 | 15.0 β better |
| Further details β not scored | ||
| Size | 11 MB | 7 MB |
| Age rating | 12+ | 17+ |
| Developer | PETR HAZUZA | yehuda breuer |
In-app purchases
May Diary
- Buy Me a Coffee$0.99
- Support Development$2.99
- Big Thank You$4.99
Shadow Self
No in-app purchases









