# PrincipleX vs 叶子

The clearest difference is in-app purchases: 叶子 at none against PrincipleX's 5. 叶子 also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (16 vs 18.0). PrincipleX's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. PrincipleX sells 5 in-app purchases, starting at $2.99 per month. 叶子 asks for nothing beyond the download.

PrincipleX ships an update every 3 weeks, 叶子 every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PrincipleX | 叶子 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/principlex-principles-and-notes/id6479702612/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | — |
| Size | 7 MB | 18 MB |
| Requires iOS | 18.0 | **16** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [旭 夏](https://appshunter.io/developer/1494807611) | [燕梅 高](https://appshunter.io/developer/1860144880) |

## What reviewers say

### PrincipleX

[App page](https://appshunter.io/ios/app/principlex-principles-and-notes/id6479702612)

Capture, reflect on, and grow with your personal principles. This app helps you organize your guiding beliefs and build the habit of living by them through daily reminders and journaling.

**Highlights:** Create and organize personal principles, Manage principles with folders and tags, Daily principle practice reminders, Reflective journaling for personal growth, Pin important principles for daily focus, iCloud sync across devices

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Annual Plan | $14.99 | per year |
| A Coffee | $1.00 | one-time |
| Signature Color | $3.00 | one-time |
| Lifetime Access | $9.99 | one-time |


### 叶子

[App page](https://appshunter.io/ios/app/id6758298737)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PrincipleX free?

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

### Is 叶子 free?

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

### Do PrincipleX or 叶子 have ads?

叶子 shows ads; PrincipleX does not.

### Which is updated more often, PrincipleX or 叶子?

PrincipleX ships an update every 3 weeks, and 叶子 every 3 days. Most recently, PrincipleX was updated on October 24, 2026 and 叶子 on October 28, 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.*