# 擇改易 HK vs Luosi

The clearest difference is ads: Luosi at none against 擇改易 HK's shown. Luosi also leads on monetization model (free vs ad-supported) and ratings volume (6 vs 1). 擇改易 HK's advantage is update cadence (every 2 days vs weekly). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. 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 擇改易 HK against 5.0 for Luosi. That said, the two scores are not equally well evidenced: Luosi has 6 ratings behind it against 1, so its average is the more settled of the two.

擇改易 HK ships an update every 2 days, Luosi weekly. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 擇改易 HK | Luosi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/hk/id568034553/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/luosi/id6449674882/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | Ad-supported | **Free** |
| Size | 128 MB | 258 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lap Tak Cheung](https://appshunter.io/developer/557168864) | [Tao-Wu Chen](https://appshunter.io/developer/1690023718) |

## What reviewers say

### 擇改易 HK

[App page](https://appshunter.io/ios/app/hk/id568034553)

This app helps you choose auspicious dates for life events and suggests names based on traditional Chinese philosophy and Hong Kong naming conventions. It includes a perpetual calendar for checking lunar dates, solar terms, and daily fortunes.

**Highlights:** Name suggestions based on birth data and five elements, Detailed life analysis with clear explanations, Auspicious date selection for events, Perpetual calendar with lunar dates and daily fortunes, Traditional calendar widget

**Features:** Vision Pro support

**In-app purchases:** none


### Luosi

[App page](https://appshunter.io/ios/app/luosi/id6449674882)

This app uses the ancient Chinese BAXI algorithm to analyze and track your luck fluctuations. Understand your personal luck patterns over time with detailed insights.

**Highlights:** BAXI algorithm analysis, Luck fluctuation tracking, Personalized luck insights, Time-based analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 擇改易 HK free?

擇改易 HK is free to download, with no in-app purchases.

### Is Luosi free?

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

### Which has better reviews, 擇改易 HK or Luosi?

擇改易 HK and Luosi are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do 擇改易 HK or Luosi have ads?

擇改易 HK shows ads; Luosi does not.

### Which is updated more often, 擇改易 HK or Luosi?

擇改易 HK ships an update every 2 days, and Luosi weekly. Most recently, 擇改易 HK was updated on October 26, 2026 and Luosi on October 8, 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.*