# 知记 vs 素记日记, Diary, Mood Tracker

The clearest difference is in-app purchases: 知记 at none against 素记日记, Diary, Mood Tracker's 4. 知记 also leads on iOS requirement (9.0 vs 13.0). 素记日记, Diary, Mood Tracker's advantage is review sentiment (88% vs 77%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. 素记日记, Diary, Mood Tracker sells 4 in-app purchases, starting at $4.99 per month. 知记 asks for nothing beyond the download.

知记 holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 114 and 54 respectively. Written reviews complicate that: 77% of 知记's written reviews are positive against 88% of 素记日记, Diary, Mood Tracker's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 知记 | 素记日记, Diary, Mood Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (114 ratings)](https://appshunter.io/ios/app/id1220346716/reviews)** | [4.5 (54 ratings)](https://appshunter.io/ios/app/diary-mood-tracker/id6496847689/reviews) |
| Number of ratings | **114** | 54 |
| Positive reviews | 76.8% of reviews | **87.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 94 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [素琼 曹](https://appshunter.io/developer/1212815207) | [武杰 陈](https://appshunter.io/developer/1738026409) |

## What reviewers say

### 知记

[App page](https://appshunter.io/ios/app/id1220346716)

A private journaling app with a clean, elegant design that allows you to record your thoughts and memories. It supports image insertion, cloud backup, and robust privacy features like Touch ID and password protection. Enjoy offline access, customizable themes, and convenient search and export options.

**Highlights:** Account synchronization, Free image cloud backup, Touch ID and password protection, Offline access, Long image export, Timeline view, Customizable fonts and stationery, Night mode

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ✨ Clean and simple interface
- 🎨 Beautiful and artistic design
- ✍️ Easy to use for recording
- 🌟 Good for daily mood tracking
- 🇨🇳 Supports traditional Chinese

**What reviewers complain about**

- ❌ Cannot log in
- ❌ Data loss / diaries disappear
- ❌ Registration issues
- ❌ Connection failed errors
- ❌ Cannot save entries

**Reported bugs**

- Cannot log in
- Connection failed
- Diaries disappeared
- Cannot save entries
- Cannot register

**Requested features**

- Add more fonts
- Add author signature
- Add tag function
- Image insertion via file manager
- Local storage and iCloud sync


### 素记日记, Diary, Mood Tracker

[App page](https://appshunter.io/ios/app/diary-mood-tracker/id6496847689)

A minimalist and elegant diary app with a vintage Chinese aesthetic. It allows users to record life's moments with rich fonts, custom backgrounds, and image support. Features include calendar overviews, search, cloud sync, and secure password protection.

**Highlights:** Multiple font options, Chinese-style stationery backgrounds, Insert images into entries, Calendar view of past entries, Keyword search for diaries, iCloud sync and backup, Password and biometric protection

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 日记月度会员 | $4.99 | per month |
| 日记年度会员 | $9.99 | per year |
| 日记本-记录生活永久会员 | $14.99 | one-time |
| 日记永久会员 | $14.99 | one-time |


## Frequently asked questions

### Is 知记 free?

知记 is free to download, with no in-app purchases.

### Is 素记日记, Diary, Mood Tracker free?

素记日记, Diary, Mood Tracker is free to download, with in-app purchases available.

### Which has better reviews, 知记 or 素记日记, Diary, Mood Tracker?

知记 is rated higher. 知记 averages 4.7 out of 5 from 114 ratings, while 素记日记, Diary, Mood Tracker averages 4.5 from 54 ratings.

### Do 知记 or 素记日记, Diary, Mood Tracker have ads?

Neither 知记 nor 素记日记, Diary, Mood Tracker shows ads.

### Which is updated more often, 知记 or 素记日记, Diary, Mood Tracker?

知记 ships an update fortnightly, and 素记日记, Diary, Mood Tracker fortnightly. Most recently, 知记 was updated on October 22, 2026 and 素记日记, Diary, Mood Tracker on October 24, 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.*