Diary with lock vs Moonwave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diary with lock
This app offers a private digital journal with PIN protection, AI-powered mood tracking, and personalized insights. It helps users record daily thoughts, express feelings, and understand emotional patterns through guided journaling and AI companionship.
- PIN lock for privacy
- AI-powered journaling
- Mood tracking and analysis
- Personalized AI insights
- Daily reminders
- Photo attachments
- Cloud backup options
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DAILY DIARY WITH LOCK – AI JOURNAL & MOOD TRACKER ZenDiary is your private daily diary with PIN lock, AI-powered journaling, and mood tracking. Write about your day, save memories, express feelings, and understand your emotions in one beautiful diary app. Whether you need a daily diary, personal journal, or diary with lock protection, ZenDiary offers a safe, distraction-free space to record your thoughts and reflect on life. Unlike ordinary diary apps, ZenDiary uses AI to help you discover emotional patterns, track moods, and develop self-awareness. YOUR PERSONAL DAILY DIARY Make daily journaling a meaningful habit. Capture everyday moments, organize thoughts, and preserve personal memories. - Write daily diary entries anytime - Record thoughts, feelings, and experiences - Add photos to journal entries - Enjoy a clean, distraction-free writing interface - Set daily reminders to build a journaling habit - Revisit past entries and memories Whether writing a few sentences or several pages, ZenDiary makes keeping a personal diary simple. PRIVATE DIARY WITH PIN LOCK Your diary is your personal space. ZenDiary provides PIN lock protection to help keep your private journal secure. - Protect your diary with a personal PIN - Store entries locally on your device - Keep personal thoughts and memories private - Optional Google Drive and iCloud backup - Write freely in your personal journal AI-POWERED JOURNAL & MOOD TRACKER Go beyond traditional diary writing with intelligent AI insights that help you better understand your emotions. - Automatic mood detection from journal entries - Personalized AI insights and reflections - Emotional pattern and stress analysis - Writing prompts tailored to your mood - Mood predictions and emotional trends - Visual mood tracking and statistics Discover recurring feelings and understand your emotional journey through daily journaling. CHAT WITH ZENI – YOUR AI COMPANION Meet Zeni, your supportive AI journaling companion. Share your thoughts, explore feelings, and receive meaningful reflections. - Chat about daily experiences and emotions - Receive personalized AI reflections - Explore recurring emotional patterns - Get writing inspiration and journal prompts - Reflect on your personal journey TRACK YOUR MOOD & EMOTIONAL PATTERNS Understand how your feelings change over time with powerful mood-tracking tools. - Daily mood charts and statistics - Emotional trends and insights - Word Cloud showing recurring themes - Stress analysis and mood predictions - Monthly journaling digest BUILD A DAILY JOURNALING HABIT Use ZenDiary as your everyday writing companion to: - Record daily life and personal memories - Practice gratitude and mindfulness - Reflect on happy and difficult moments - Track moods and emotional well-being - Organize thoughts through personal writing - Develop self-awareness through reflection Whether you're starting your first daily diary or continuing a journaling habit, ZenDiary makes writing enjoyable. ZENDIARY PREMIUM Unlock the complete journaling experience: - Unlimited Zeni AI conversations - Unlimited AI-powered insights - Mood predictions - Word Cloud and Stress Analysis - Monthly Digest - Ad-free experience SUBSCRIPTION INFORMATION - Payment is charged to your Apple ID at purchase confirmation. - Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. - Renewal is charged within 24 hours before the current period ends. - Manage or cancel subscriptions in your Apple Account Settings. START YOUR DAILY DIARY TODAY Download ZenDiary to create your private diary with lock protection, track your mood, save memories, and explore your thoughts with AI-powered insights. Write daily. Reflect deeply. Grow with ZenDiary. ZenDiary is a self-reflection tool and does not replace professional mental health care. Terms of Use: https://zendiary.in/terms Privacy Policy: https://zendiary.in/privacypolicy
Moonwave
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Moonwave is a private period tracker and menstrual cycle journal that turns your daily logs into a visual moon mandala. PERIOD AND CYCLE TRACKING • Track period start dates, cycle length, and menstrual flow • Log moods, pain, symptoms • Create custom emotions and symptoms • Review your period and cycle history • See estimated upcoming cycle days and period timing • Set daily check-in and period reminders MOON MANDALA • View your period and daily logs in a moon mandala • See moods, symptoms, flow, and moon phases together • Browse past and upcoming mandalas • Find recurring patterns across your cycle history • Customize themes, colors, symbols, and tracked signals • Share mandala images or export PDF reports PRIVATE BY DESIGN • No Moonwave account required • Journal data is stored on your device • Private iCloud sync when available • No Moonwave-operated database for your journal • Optional analytics do not include journal contents • No subscription or automatic renewal Your first mandala is free. Unlock Moonwave Pro once with a lifetime purchase for complete history, pattern views and additional themes. Moonwave is intended for personal wellness reflection only. It does not provide medical advice, diagnosis, treatment, contraception or fertility guidance, pregnancy confirmation, or emergency care.
Screenshots
Verdict
The clearest difference is ads: Moonwave at none against Diary with lock's shown. On price, update cadence, 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
Both are free to download. Diary with lock sells 2 in-app purchases, starting at $12.99 per month and Moonwave sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | Diary with lock | Moonwave |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days | Every 3 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 115 MB | 21 MB |
| Age rating | 12+ | 12+ |
| Developer | Pulkit Aggarwal | stDEV |
In-app purchases
Diary with lock
- Premium Monthly$12.991 Month
- Premium Yearly$79.991 Year
Moonwave
- Lifetime Access$19.99









