# nikki vs イヌ型日記わん

The clearest difference is price: nikki at Free against イヌ型日記わん's $2.99. nikki also leads on iOS requirement (15.6 vs 17.6). イヌ型日記わん's advantage is in-app purchases (none vs 2) and ads (none vs shown). On update cadence and device support there is nothing between them.

nikki is free to download; イヌ型日記わん costs $2.99 up front. nikki sells 2 one-off in-app purchases. イヌ型日記わん asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 3, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | nikki | イヌ型日記わん |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/nikki-diary/id921470934/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 98.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 10 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [REVOLAB Inc.](https://appshunter.io/developer/575787284) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## What reviewers say

### nikki

[App page](https://appshunter.io/ios/app/nikki-diary/id921470934)

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.

**Highlights:** 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)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 添付画像を10枚にUP | $2.99 | one-time |
| 広告非表示（広告を外す） | $7.99 | one-time |


### イヌ型日記わん

[App page](https://appshunter.io/ios/app/id6738761390)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is nikki free?

nikki is free to download, with in-app purchases available.

### Is イヌ型日記わん free?

イヌ型日記わん costs $2.99, with no in-app purchases.

### Do nikki or イヌ型日記わん have ads?

nikki shows ads; イヌ型日記わん does not.

### Which is updated more often, nikki or イヌ型日記わん?

nikki ships an update every 2 months, and イヌ型日記わん every 2 months. Most recently, nikki was updated on October 3, 2026 and イヌ型日記わん on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*