# PrincipleX vs 魔力空间 Mooly

The clearest difference is rating: PrincipleX at 5.0 against 魔力空间 Mooly's 4.3. PrincipleX also leads on review sentiment (100% vs 75%). 魔力空间 Mooly's advantage is update cadence (every 4 days vs every 3 weeks) and monetization model (freemium vs paid). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. PrincipleX sells 5 in-app purchases, starting at $2.99 per month and 魔力空间 Mooly sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

PrincipleX holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 100% of PrincipleX's written reviews are positive against 75% of 魔力空间 Mooly's.

PrincipleX ships an update every 3 weeks, 魔力空间 Mooly every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PrincipleX | 魔力空间 Mooly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/principlex-principles-and-notes/id6479702612/reviews)** | [4.3 (3 ratings)](https://appshunter.io/ios/app/mooly-ai/id6739579778/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Paid | **Freemium** |
| Size | 7 MB | 92 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [旭 夏](https://appshunter.io/developer/1494807611) | [旭旭 董](https://appshunter.io/developer/1756318031) |

## 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 |


### 魔力空间 Mooly

[App page](https://appshunter.io/ios/app/mooly-ai/id6739579778)

This AI-powered personal growth companion helps you track goals and observe yourself through a balanced life framework. It quantifies various life aspects, offers intelligent AI feedback, and visualizes progress with a "magic flower" to represent happiness.

**Highlights:** AI-powered personal growth companion, Goal tracking with AI review, Customizable AI partners, Energy wallet for quantified progress, Visualizes happiness with "magic flower", AI analysis of notes for tasks, mood, and diet

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 年度会员 | $24.99 | per year |
| 永久会员 | $39.99 | one-time |


## Frequently asked questions

### Is PrincipleX free?

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

### Is 魔力空间 Mooly free?

魔力空间 Mooly is free to download, with in-app purchases available.

### Which has better reviews, PrincipleX or 魔力空间 Mooly?

PrincipleX is rated higher. PrincipleX averages 5.0 out of 5 from 2 ratings, while 魔力空间 Mooly averages 4.3 from 3 ratings.

### Do PrincipleX or 魔力空间 Mooly have ads?

Neither PrincipleX nor 魔力空间 Mooly shows ads.

### Which is updated more often, PrincipleX or 魔力空间 Mooly?

PrincipleX ships an update every 3 weeks, and 魔力空间 Mooly every 4 days. Most recently, PrincipleX was updated on October 24, 2026 and 魔力空间 Mooly on October 25, 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.*