# 음양관 vs LETTI 렛티

The clearest difference is monetization model: 음양관 at free against LETTI 렛티's free with in-app purchases. LETTI 렛티's advantage is review sentiment (100% vs 77%) and update cadence (every 2 days vs every 5 days). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 음양관 sells 9 one-off in-app purchases and LETTI 렛티 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

음양관 ships an update every 5 days, LETTI 렛티 every 2 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 음양관 | LETTI 렛티 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 76.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 208 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [음양관](https://appshunter.io/developer/1896774833) | [DO SUNG LEE](https://appshunter.io/developer/6780416974) |

## What reviewers say

### 음양관

[App page](https://appshunter.io/ios/app/id6743756024)

This app analyzes birth dates and times to provide personalized fortune-telling and compatibility readings. It offers daily horoscopes, detailed life path analysis, and in-depth readings on relationships, wealth, and personal destiny, presented in an accessible and engaging format.

**Highlights:** Daily horoscope with daily flow analysis, Detailed birth chart analysis (Saju), Accurate Manse-ryeok with time correction, In-depth personalized readings (love, wealth, destiny), Compatibility analysis for couples, New Year's fortune readings, Engaging and easy-to-understand explanations

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 음양관 50냥 | $3.99 | one-time |
| 음양관 120냥 | $8.99 | one-time |
| 음양관 150냥 | $9.99 | one-time |
| 음양관 288냥 | $19.99 | one-time |
| 음양관 348냥 | $24.99 | one-time |
| 음양관 388냥 | $29.99 | one-time |
| 음양관 558냥 | $39.99 | one-time |
| 음양관 1000냥 + 보너스 50냥 | $69.99 | one-time |
| 음양관 1500냥 + 보너스 100냥 | $99.99 | one-time |


### LETTI 렛티

[App page](https://appshunter.io/ios/app/letti/id6780416972)

Capture and organize memorable lines from various sources, including text from photos and foreign languages. Create shareable cards and receive gentle reminders to revisit your favorite quotes.

**Highlights:** Capture lines from text or photos (OCR), Save foreign lines with translation, Organize lines into custom collections, Create and share quote cards, Gentle reminders for favorite lines, PRO features: photo backgrounds, custom reminders, export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Letti PRO | $1.99 | per month |
| Letti PRO | $17.99 | per year |


## Frequently asked questions

### Is 음양관 free?

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

### Is LETTI 렛티 free?

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

### Do 음양관 or LETTI 렛티 have ads?

Neither 음양관 nor LETTI 렛티 shows ads.

### Which is updated more often, 음양관 or LETTI 렛티?

음양관 ships an update every 5 days, and LETTI 렛티 every 2 days. Most recently, 음양관 was updated on October 25, 2026 and LETTI 렛티 on October 15, 2026.

---

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