# nikki vs Simple Diary

The clearest difference is ratings volume: Simple Diary at 909 against nikki's 5. nikki's advantage is review sentiment (98% vs 78%) and rating (5.0 vs 4.8). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. nikki sells 2 one-off in-app purchases and Simple Diary sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

nikki holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Simple Diary has 909 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 98% of nikki's written reviews are positive against 78% of Simple Diary's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | nikki | Simple Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/nikki-diary/id921470934/reviews)** | [4.8 (909 ratings)](https://appshunter.io/ios/app/simple-diary-daily-journal/id1388195923/reviews) |
| Number of ratings | 5 | **909** |
| Positive reviews | **98.1% of reviews** | 78.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 30 MB | 206 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [REVOLAB Inc.](https://appshunter.io/developer/575787284) | [Komorebi Inc.](https://appshunter.io/developer/481596469) |

## 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 |


### Simple Diary

[App page](https://appshunter.io/ios/app/simple-diary-daily-journal/id1388195923)

This app provides a simple and convenient way to journal your thoughts and experiences. It allows you to add images, secure your entries with a passcode, and customize the app's appearance. Data backup and search functions ensure your memories are safe and easily accessible.

**Highlights:** Insert images into entries, Secure passcode lock (Face ID/Touch ID), Customizable theme colors and app icon, Data backup to iTunes/PC and cloud services, Tag-based search for entries, Adjustable text font size and color, Daily reminder notifications

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $3.99 | per month |
| Premium (Annual) | $19.99 | per year |
| Premium Service (Lifetime) | $69.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 📷 Ability to add photos
- 🔒 Password protection
- 🗓️ Organized by calendar view
- 🔍 Effective search functionality

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 📁 Limited photo upload capacity
- 💰 Paywall for some features
- 🔄 Inconvenient manual backup/restore process
- 🎨 Limited font and theme options in free version

**Reported bugs**

- Some characters not displaying properly
- Calendar dates not always accurate
- Deleted entries not recoverable

**Requested features**

- Automatic iCloud/Google Drive sync
- More font and theme customization options
- Video recording and embedding
- Ability to add tags or categories to entries
- One-tap access to previous day's entry


## Frequently asked questions

### Is nikki free?

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

### Is Simple Diary free?

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

### Which has better reviews, nikki or Simple Diary?

nikki is rated higher. nikki averages 5.0 out of 5 from 5 ratings, while Simple Diary averages 4.8 from 909 ratings.

### Do nikki or Simple Diary have ads?

Both nikki and Simple Diary show ads.

### Which is updated more often, nikki or Simple Diary?

nikki ships an update every 2 months, and Simple Diary every 2 months. Most recently, nikki was updated on November 1, 2026 and Simple Diary on November 11, 2026.

---

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