nikki vs Diary with Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nikki
This app allows you to keep a private diary with rich media. You can add photos, take notes in a chat format, and use it as a planner. Security features include password and biometric locks, with customizable themes to personalize your journaling experience.
- Insert pictures into diary entries
- Chat-style memo function
- Use as a future date schedule book
- Password and biometric app lock
- Various fun stamps
- Customizable timeline themes (Pinboard, List, Calendar)
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Wanna write your secret diary...?? Here is the perfect app for you!! ◎Functions 1. Pictures can be inserted into each article. 2. There is a memo function: You can take notes in a chat format. 3. It can be used as a schedule book by writing on a future date. 4. You can lock the app with a password. It corresponds also to Face ID, Touch ID. 5. There are various fun stamps. ◎Change the timeline theme as you like (3 types) 1. Pinboard type with an emphasis on photos 2. List type with an emphasis on articles 3. Calendar type with an emphasis on practicality
Diary with Lock
Capture and cherish life's moments in a secure, beautifully designed digital journal. Add text, photos, and videos, track your mood and weather, and protect your entries with a passcode. Back up your memories to iCloud and export them as PDFs.
- Photo and text diary entries
- Lock screen passcode protection
- iCloud backup
- Mood and weather tracking
- Font customization
- Intruder snapshots
- PDF export
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Welcome to iDiary – the ultimate diary app that combines the classic art of journaling with modern technology! With iDiary, you can easily capture and cherish all your precious moments in a beautifully designed and secure platform. Here are some of the key features that make iDiary the perfect diary app for you: - Photo and Text Diary Entries: Create rich and engaging diary entries by mixing text and photos and videos together. iDiary lets you capture your life's moments in an expressive and immersive way. - Lock Screen Passcode: Keep your diary entries safe from prying eyes with a secure lock screen passcode. Your secrets are safe with iDiary! - iCloud Backup: Never lose a single moment of your life again. iDiary automatically backs up your diary entries to iCloud, ensuring that all your memories are safe and secure. - Mood and Weather: Capture your mood and the weather each day to add an even deeper level of detail to your diary entries. - Font Customization: Choose from a variety of fonts to make your diary entries even more unique and personal. - Intruder Snapshots: iDiary automatically captures a photo of anyone who tries to access your diary without your permission. Keep your diary safe and secure at all times. - PDF Export: Export your diary entries as PDFs for easy sharing, printing, or archiving. Download iDiary today and start capturing all your precious moments in a secure and beautiful diary app! Privacy Policy: https://www.bytecrazy.com/common_privacy_en.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact Us: trudutton@gmail.com
Screenshots
Verdict
The clearest difference is review sentiment: nikki at 98% against Diary with Lock's 0%. nikki also leads on rating (5.0 vs 4.3). Diary with Lock's advantage is ads (none vs shown) and ratings volume (20 vs 5). On price, update cadence, in-app purchases and monetization model 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. nikki sells 2 one-off in-app purchases and Diary with Lock sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
nikki holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 5 and 20 respectively. Written reviews point the same way: 98% of nikki's written reviews are positive against 0% of Diary with Lock's.
nikki ships an update every 2 months, Diary with Lock every 3 months. The most recent releases landed on June 9, 2026 and September 8, 2026 respectively.
| Parameter | nikki | Diary with Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.3 (20 ratings) |
| Positive reviews | 98.1% of reviews — better | 0.0% of reviews |
| Number of ratings | 5 | 20 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | REVOLAB Inc. | Heyou Co., Ltd. |
Customer experience
nikki
Diary with Lock
In-app purchases
nikki
- 添付画像を10枚にUP$2.99
- 広告非表示（広告を外す）$7.99
Diary with Lock
- iDiary Pro7 Days trial$9.991 Year
Questions
Is nikki free?
Is Diary with Lock free?
Which has better reviews, nikki or Diary with Lock?
Do nikki or Diary with Lock have ads?
Which is updated more often, nikki or Diary with Lock?
Other comparisons
