Comparison

May Diary vs Shadow Self

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

May Diary

Features
Read full description

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 Apple’s 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: Can’t 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 app’s 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. It’s 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.

About

Shadow Self

Features
Read full description

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

May Diary4 screens
Shadow Self4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. May Diary sells 3 one-off in-app purchases. Shadow Self asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard2 real differences Β· 4 level
May Diary versus Shadow Self: the parameters behind the verdict, then further details
ParameterMay DiaryShadow Self
PriceFreeFree
Update frequencyEvery 10 daysEvery 6 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS18.415.0 β€” better
Further details β€” not scored
Size11 MB7 MB
Age rating12+17+
DeveloperPETR HAZUZAyehuda breuer

In-app purchases

3 purchases

May Diary

One-time3
  • Buy Me a Coffee$0.99
  • Support Development$2.99
  • Big Thank You$4.99
None

Shadow Self

No in-app purchases

Questions

Is May Diary free?
May Diary is free to download, with in-app purchases available.
Is Shadow Self free?
Shadow Self is free to download, with no in-app purchases.
Do May Diary or Shadow Self have ads?
Neither May Diary nor Shadow Self shows ads.
Which is updated more often, May Diary or Shadow Self?
May Diary ships an update every 10 days, and Shadow Self every 6 days. Most recently, May Diary was updated on September 29, 2026 and Shadow Self on October 10, 2026.

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