Comparison

Secret diary vs ChapterLamp

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

Head to head
About

Secret diary

This app provides a secure and customizable space for journaling, mood tracking, and memory keeping. Enhance your entries with photos, stickers, and personalized themes. Organize your thoughts with tags and find them easily with smart search.

Highlights
  • Secure passcode, pattern, or password lock
  • Mood tracking and emotional analytics
  • Add photos, stickers, and backgrounds to entries
  • Organize entries with tags
  • Customizable themes, fonts, and colors
  • Backup and restore functionality
  • Daily writing reminders
Features
Read full description

Your thoughts deserve a private, beautiful home. My Private Diary - Mood Journal is a calm, secure, and customizable diary app designed to help you write freely, track your emotions, and protect your memories — all in one peaceful space. It’s not just a diary. It’s your personal companion for reflection, growth, and self-care. What You Can Do - Write journals and daily reflections anytime, anywhere - Add photos, stickers, frames, and backgrounds to make each page special - Record your emotions using the mood tracker and view your emotional journey over time - Organize entries by tags, moods, or dates - Keep your diary safe with a passcode, pattern, or password lock Key Features: Mood Tracker & Analytics With mood journal you can track how you feel every day and visualize your emotional patterns with charts and mood calendars. Private Lock System Your memories are yours alone. Secure them with pattern, PIN, or password protection. There is also a recovery question which is used to recover your password incase you forget it. Backup & Restore Safely back up your entries and restore anytime. Never lose your memories again. To backup visit setting then backup and restore. Themes, Fonts & Customization Choose from elegant themes, unique fonts, and rich colors. Create a writing space that reflects you. You can set it via setting - themes, or on homepage open side navigation and click on themes then choose your theme and click apply. Photo Diary with Stickers & Frames Turn your daily journal into a visual story. The free version lets you add 2 images per entry, and with Premium you can add up to 30. You can use it with frames, animated stickers, and custom captions. In the entry page you can find related buttons like sticker, add image, tags, backgrounds etc, click on any to view and add items you want. To add frames or change size of you photo click on it then choose the frame or click on resize button to change the size. Tags for Easy Organization Group your entries with tags — track travel, love, goals, gratitude, or any moment that matters. Calendar & Smart Search Easily find past entries by date, mood, tag, or keyword. Write minimum 3 words to search, choose a tag or choose any mood emoji to filter — your entire story at a glance. Reminders & Notifications Stay consistent with gentle reminders to write every day. You can set custom reminder at any time of the day going to setting - reminder. Journaling for Mind & Mood Writing helps you clear your mind, reduce stress, and understand yourself better. Use your diary as a daily self-care and mindfulness tool. Premium Features • Auto Backup • Add up to 30 photos per entry • Unlock all premium themes, backgrounds and colors • Exclusive sticker packs and photo frames • Custom app backgrounds • Tag icons & extra moods • No Ads — pure, focused journaling. Why You’ll Love It Your diary should be as private and personal as your thoughts. With My Diary – Daily Mood Journal, you get a calm, safe space to reflect, express, and rediscover yourself — wherever you want. Write your heart out. Track your emotions. Your story, your feelings — locked, safe, and beautifully yours.

About

ChapterLamp

Features
Read full description

ChapterLamp is a quiet, fully private reading log for the books you love. • Library — track Reading, Want to Read, Finished. All on this device. • ChapterLamp timer — log every chapter at your own pace. No streak shaming, no daily caps. • Saved lines — keep the quotes you'll come back to, with tags and pages. • Statistics — yearly goal, monthly heatmap, reading pace — all calculated on-device. • ISBN scan — first-scan only, then 100% offline. One purchase. No subscription, no cloud, no account, no social pressure. Yours, kept gently. Premium ($2.99 one-time) unlocks unlimited books, parallel reading, full statistics, exports to PDF/Markdown/JSON, six lamp themes, and adjustable haptic warmth. Nine languages: English, German, Japanese, Korean, Arabic, French, Spanish, Portuguese (Brazil), Simplified Chinese.

Screenshots

Secret diary4 screens
ChapterLamp4 screens

Verdict

The call

The clearest difference is in-app purchases: ChapterLamp at none against Secret diary's 5. ChapterLamp also leads on ads (none vs shown). Secret diary's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence 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. Secret diary sells 5 in-app purchases, starting at $2.99 per month. ChapterLamp asks for nothing beyond the download.

UpkeepUpdate frequency

Secret diary ships an update every 3 weeks, ChapterLamp fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Secret diary versus ChapterLamp: the parameters behind the verdict, then further details
ParameterSecret diaryChapterLamp
PriceFreeFree
Rating4.3 (12 ratings) — better—
Number of ratings12 — better—
Update frequencyEvery 3 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size83 MB16 MB
Age rating4+4+
DeveloperChandan KumarShanghai Runesmith Artificial Intelligence Technology Co., Ltd.

In-app purchases

5 purchases

Secret diary

Subscriptions3
  • Diary Premium Monthly$2.991 Month
  • Diary Premium Yearly7 Days trial$14.991 Year
  • Diary Annual Subscription$14.991 Year
One-time2
  • Diary Premium - Lifetime$19.99
  • Diary premium lifetime$39.99
None

ChapterLamp

No in-app purchases

Questions

Is Secret diary free?
Secret diary is free to download, with in-app purchases available.
Is ChapterLamp free?
ChapterLamp is free to download, with no in-app purchases.
Do Secret diary or ChapterLamp have ads?
Secret diary shows ads; ChapterLamp does not.
Which is updated more often, Secret diary or ChapterLamp?
Secret diary ships an update every 3 weeks, and ChapterLamp fortnightly. Most recently, Secret diary was updated on October 24, 2026 and ChapterLamp on October 28, 2026.

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