# CAL20000 vs 고전 사주

The clearest difference is review sentiment: CAL20000 at 100% against 고전 사주's 33%. CAL20000 also leads on rating (5.0 vs 2.0) and ads (none vs shown). 고전 사주's advantage is update cadence (every 2 months vs every 22 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. CAL20000 sells 2 one-off in-app purchases and 고전 사주 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CAL20000 holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of CAL20000's written reviews are positive against 33% of 고전 사주's.

CAL20000 ships an update every 22 months, 고전 사주 every 2 months. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | CAL20000 | 고전 사주 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cal20000/id462638410/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/3/id1205284196/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 54 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YOUNGCHANG KOH](https://appshunter.io/developer/462580655) | [Jongsoo Choi](https://appshunter.io/developer/1135330177) |

## What reviewers say

### CAL20000

[App page](https://appshunter.io/ios/app/cal20000/id462638410)

This app provides a detailed calendar with accurate sun and moon positions, lunar phases, and astronomical events. It includes traditional calendars like sexagenary cycles and 24 solar terms, along with celestial maps and astrological information. The app covers a vast year range and offers detailed moon orbit data.

**Highlights:** Accurate sun and moon position calculations, Lunar phase and eclipse tracking, Sexagenary day unit and 28 mansions data, 24 solar terms and new/full moon times, Kusung and KiMoon calendar information, Moon orbit and distance data, Heliocentric planet position map

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week limited version | $0.99 | one-time |
| 유료버전 | $99.99 | one-time |


### 고전 사주

[App page](https://appshunter.io/ios/app/3/id1205284196)

Explore the wisdom of ancient East Asian astrology with this app. It provides the original texts and modern interpretations of three major classical texts, helping you understand your destiny through birth dates. Ideal for those seeking a deeper understanding of traditional fortune-telling.

**Highlights:** Original texts of 3 major classical astrology books, Modern language translation and explanations, Fortune-telling based on birth date, Index of classical texts by day and month, Easy-to-understand commentary for beginners

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 토큰 1개 구매 | $2.99 | one-time |
| 리포트 구매 | $3.99 | one-time |
| 무광고버전 업그레이드 | $3.99 | one-time |
| 토큰 3개 구매 | $6.99 | one-time |
| 토큰 5개 구매 | $9.99 | one-time |
| 토큰 10개 구매 | $16.99 | one-time |


## Frequently asked questions

### Is CAL20000 free?

CAL20000 is free to download, with in-app purchases available.

### Is 고전 사주 free?

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

### Which has better reviews, CAL20000 or 고전 사주?

CAL20000 is rated higher. CAL20000 averages 5.0 out of 5 from 1 ratings, while 고전 사주 averages 2.0 from 1 ratings.

### Do CAL20000 or 고전 사주 have ads?

고전 사주 shows ads; CAL20000 does not.

### Which is updated more often, CAL20000 or 고전 사주?

CAL20000 ships an update every 22 months, and 고전 사주 every 2 months. Most recently, CAL20000 was updated on October 4, 2026 and 고전 사주 on October 15, 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.*