# 知我 vs PoPo日记

The clearest difference is price: 知我 at Free against PoPo日记's $1.99. PoPo日记's advantage is iOS requirement (11.0 vs 14.1). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

知我 is free to download; PoPo日记 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for 知我 against 5.0 for PoPo日记. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

知我 ships an update monthly, PoPo日记 every 5 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 知我 | PoPo日记 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/id1468035013/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/popo/id1559183447/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | **Free** | Paid |
| Size | 3 MB | 61 MB |
| Requires iOS | 14.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Accanto Co., Ltd.](https://appshunter.io/developer/1330534480) | [月红 韩](https://appshunter.io/developer/1521209420) |

## What reviewers say

### 知我

[App page](https://appshunter.io/ios/app/id1468035013)

This app provides a friendly and honest way to record your current state. It's designed to help individuals, including those with health conditions or mental health challenges, begin to see positive change through objective self-awareness.

**Highlights:** Honest self-recording, Objective self-awareness, Record current state, Leave a mark on time, User feedback welcome

**Features:** Vision Pro support

**In-app purchases:** none


### PoPo日记

[App page](https://appshunter.io/ios/app/popo/id1559183447)

This app serves as a private digital journal for recording daily emotions and memories. It allows users to track mood trends, personalize entries with custom fonts and photos, and secure their data with Face ID and iCloud backup.

**Highlights:** Mood tracking and statistics, Personalized journal entries, Photo uploads and memory wall, Customizable fonts, iCloud backup, Face ID privacy lock, Calendar view of mood changes

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

**In-app purchases:** none


## Frequently asked questions

### Is 知我 free?

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

### Is PoPo日记 free?

PoPo日记 costs $1.99, with no in-app purchases.

### Which has better reviews, 知我 or PoPo日记?

知我 and PoPo日记 are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.

### Do 知我 or PoPo日记 have ads?

Neither 知我 nor PoPo日记 shows ads.

### Which is updated more often, 知我 or PoPo日记?

知我 ships an update monthly, and PoPo日记 every 5 weeks. Most recently, 知我 was updated on October 24, 2026 and PoPo日记 on October 27, 2026.

---

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