nikki vs Mimori
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
Mimori
This app allows users to create a private journal or share daily moments with loved ones. It functions like a shared photo album, helping to capture and preserve everyday memories with a partner, family, or close friends.
- Private journaling
- Shared entries with loved ones
- Capture daily moments
- Build a shared photo album
- Create lasting memories
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Mimori is a journal app that lets you share your daily moments with your partner, family, or close friends. You can use it as a private journal just for yourself, or share your entries with someone special. Like building a shared photo album, Mimori helps you capture little moments each day and turn them into lasting memories. - Terms of Use https://moberly.co.jp/mimori/terms-en - Privacy Policy https://moberly.co.jp/mimori/privacy-policy-en
Screenshots
Verdict
The clearest difference is ads: Mimori at none against nikki's shown. Mimori also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, review sentiment, 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 Mimori sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
nikki ships an update every 2 months, Mimori every 3 days. The most recent releases landed on June 9, 2026 and September 23, 2026 respectively.
| Parameter | nikki | Mimori |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 98.1% of reviews — better | 91.7% of reviews |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 117 MB |
| Age rating | 4+ | 4+ |
| Developer | REVOLAB Inc. | Moberly, Inc. |
Customer experience
nikki
Mimori
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
Mimori
- Premium Plan14 Days trial$2.991 Month
