# CAL20000 vs 탐탐만세력

The clearest difference is in-app purchases: 탐탐만세력 at none against CAL20000's 2. 탐탐만세력 also leads on update cadence (every 2 months vs every 22 months). CAL20000's advantage is iOS requirement (10.3 vs 14.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. CAL20000 sells 2 one-off in-app purchases. 탐탐만세력 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for CAL20000 against 5.0 for 탐탐만세력. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CAL20000 ships an update every 22 months, 탐탐만세력 every 2 months. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CAL20000 | 탐탐만세력 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/cal20000/id462638410/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6443442353/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 12 MB | 6 MB |
| Requires iOS | **10.3** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YOUNGCHANG KOH](https://appshunter.io/developer/462580655) | [AlcoholLand](https://appshunter.io/developer/364213566) |

## 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 |


### 탐탐만세력

[App page](https://appshunter.io/ios/app/id6443442353)

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

**In-app purchases:** none


## Frequently asked questions

### Is CAL20000 free?

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

### Is 탐탐만세력 free?

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

### Which has better reviews, CAL20000 or 탐탐만세력?

CAL20000 and 탐탐만세력 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do CAL20000 or 탐탐만세력 have ads?

Neither CAL20000 nor 탐탐만세력 shows ads.

### Which is updated more often, CAL20000 or 탐탐만세력?

CAL20000 ships an update every 22 months, and 탐탐만세력 every 2 months. Most recently, CAL20000 was updated on October 4, 2026 and 탐탐만세력 on October 11, 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.*