Comparison

One Question a Day vs May Diary

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

Head to head
About

One Question a Day

This app encourages daily self-reflection with thought-provoking questions. Track your personal growth, review past answers, and build a habit of mindfulness and self-discovery through guided prompts and a complete answer history.

Highlights
  • Daily thought-provoking questions
  • Personalized prompts based on answers
  • Weekly answer reviews
  • Complete history of responses
  • Profile tracking for streaks and growth
  • Mindfulness and self-inquiry exercises
Features
Read full description

Discover yourself every day with One Question a Day! This self-reflection app helps you track your personal growth through daily questions and see how your answers evolve over time. Build a habit of self-reflection, mindfulness, and self-discovery, all in one easy-to-use digital journal. Features include: • Question of the day: Thought-provoking daily questions to inspire reflection and self-inquiry; • Personalized questions: Tailored prompts based on your answers to an initial questionnaire; • Weekly reflections: Review your answers over time and reflect on your life; • Complete history: Access all your previous responses anytime; • Profile tracking: Monitor how many questions you’ve answered, streaks, and personal growth; • Reflection prompts for self-inquiry, mindfulness, and self-reflection exercises. Use this self-reflection app to deepen your self-reflection, practice self inquiry, and explore reflection questions that help you understand yourself better. Perfect for anyone who wants a journal, daily one question per day prompts, and a tool to reflect life regularly. Privacy & Terms: By downloading One Question a Day, you agree to: • Privacy Policy: https://sky-oxygen-b93.notion.site/Privacy-Policy-2804284f3059803fa12fddd3560e6a2f?source=copy_link • Terms of Service: https://sky-oxygen-b93.notion.site/Terms-and-Conditions-2804284f3059807995b1e5c26df71b2e?source=copy_link Support: akiratsukamoto13@gmail.com

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.

Screenshots

One Question a Day4 screens
May Diary4 screens

Verdict

The call

The clearest difference is update cadence: One Question a Day at every 3 days against May Diary's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. One Question a Day sells 3 in-app purchases, starting at $1.99 per 7 days and May Diary sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

One Question a Day ships an update every 3 days, May Diary every 2 weeks. Both last shipped on October 15, 2026.

Scorecard1 real difference · 9 level
One Question a Day versus May Diary: the parameters behind the verdict, then further details
ParameterOne Question a DayMay Diary
PriceFreeFree
Rating4.5 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.4
Further details — not scored
Size76 MB12 MB
Age rating4+12+
DeveloperAgora Labs Ltda.PETR HAZUZA

In-app purchases

3 purchases

One Question a Day

Subscriptions2
  • Pro Subscription - Weekly$1.997 Days
  • Pro Subscription - Annual$22.991 Year
One-time1
  • Lifetime License - Pay once$24.99
3 purchases

May Diary

One-time3
  • Buy Me a Coffee$0.99
  • Support Development$2.99
  • Big Thank You$4.99

Questions

Is One Question a Day free?
One Question a Day is free to download, with in-app purchases available.
Is May Diary free?
May Diary is free to download, with in-app purchases available.
Do One Question a Day or May Diary have ads?
Neither One Question a Day nor May Diary shows ads.
Which is updated more often, One Question a Day or May Diary?
One Question a Day ships an update every 3 days, and May Diary every 2 weeks. Most recently, One Question a Day was updated on October 15, 2026 and May Diary on October 15, 2026.

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