# Linh Khí Pro vs TUAF

The clearest difference is in-app purchases: TUAF at none against Linh Khí Pro's 4. Linh Khí Pro's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Linh Khí Pro sells 4 in-app purchases, starting at $4.49 per 7 days. TUAF asks for nothing beyond the download.

Linh Khí Pro ships an update every 3 months, TUAF every 2 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Linh Khí Pro | TUAF |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 57 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hong Hanh Vo Thi](https://appshunter.io/developer/1529392567) | [Minh Nguyen Ba](https://appshunter.io/developer/1549498900) |

## What reviewers say

### Linh Khí Pro

[App page](https://appshunter.io/ios/app/linh-khi-pro/id1531847652)

This app offers a scientific approach to understanding feng shui and spirituality. It provides comprehensive measurements of celestial, human, and terrestrial energies.

**Highlights:** Scientific feng shui analysis, Spiritual insights, Celestial energy measurement, Human energy measurement, Terrestrial energy measurement

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cơ bản | $4.49 | per 7 days |
| Thông dụng | $12.99 | per month |
| Chuyên gia | $129.99 | per year |
| Chuyên nghiệp | $399.99 | one-time |


### TUAF

[App page](https://appshunter.io/ios/app/tuaf-e/id1663750951)

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

**In-app purchases:** none


## Frequently asked questions

### Is Linh Khí Pro free?

Linh Khí Pro is free to download, with in-app purchases available.

### Is TUAF free?

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

### Do Linh Khí Pro or TUAF have ads?

Neither Linh Khí Pro nor TUAF shows ads.

### Which is updated more often, Linh Khí Pro or TUAF?

Linh Khí Pro ships an update every 3 months, and TUAF every 2 months. Most recently, Linh Khí Pro was updated on October 6, 2026 and TUAF on October 13, 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.*