# Thần Bói vs Âm

The clearest difference is update cadence: Âm at every 4 days against Thần Bói's every 9 months. Thần Bói's advantage is iOS requirement (6.1 vs 15.1). On price, rating, ratings volume and ads 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 Thần Bói against 5.0 for Âm. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Thần Bói ships an update every 9 months, Âm every 4 days. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Thần Bói | Âm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/than-boi/id680349372/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/am-lich/id6749788632/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 62 MB | 63 MB |
| Requires iOS | **6.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tran Thi Thanh Huyen](https://appshunter.io/developer/555918314) | [Emergency Relief Organization Inc](https://appshunter.io/developer/1701272426) |

## What reviewers say

### Thần Bói

[App page](https://appshunter.io/ios/app/than-boi/id680349372)

Explore diverse fortune-telling content including Kiều, Egyptian, love, and money readings. Discover surprising and interesting truths about your life.

**Highlights:** Diverse fortune-telling content, Kiều readings, Egyptian readings, Love readings, Money readings, Discover surprising truths

**Features:** macOS Compatibility

**In-app purchases:** none


### Âm

[App page](https://appshunter.io/ios/app/am-lich/id6749788632)

This app provides a comprehensive Vietnamese lunar calendar, supporting dates from 1300 to 2199. It offers bilingual support, date conversion, and features for calculating specific mourning periods. Users can customize its appearance with light and dark modes.

**Highlights:** Vietnamese lunar calendar support, Date range 1300-2199, Bilingual (Vietnamese/English), Lunar to Gregorian date conversion, 49 and 100-day calculation, Light and dark mode interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thần Bói free?

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

### Is Âm free?

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

### Which has better reviews, Thần Bói or Âm?

Thần Bói and Âm are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Thần Bói or Âm have ads?

Neither Thần Bói nor Âm shows ads.

### Which is updated more often, Thần Bói or Âm?

Thần Bói ships an update every 9 months, and Âm every 4 days. Most recently, Thần Bói was updated on October 23, 2026 and Âm on October 7, 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.*