# Luosi vs OGT App

The clearest difference is in-app purchases: Luosi at none against OGT App's 1. Luosi also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OGT App sells 1 in-app purchase, starting at $3.99 per month. Luosi asks for nothing beyond the download.

Luosi ships an update weekly, OGT App every 3 weeks. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Luosi | OGT App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/luosi/id6449674882/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 258 MB | 54 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Tao-Wu Chen](https://appshunter.io/developer/1690023718) | [OGT Labs, Inc](https://appshunter.io/developer/1842407143) |

## What reviewers say

### 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


### OGT App

[App page](https://appshunter.io/ios/app/ogt-app/id6760178375)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OGT Plus | $3.99 | per month |


## Frequently asked questions

### Is Luosi free?

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

### Is OGT App free?

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

### Do Luosi or OGT App have ads?

Neither Luosi nor OGT App shows ads.

### Which is updated more often, Luosi or OGT App?

Luosi ships an update weekly, and OGT App every 3 weeks. Most recently, Luosi was updated on October 8, 2026 and OGT App 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.*