# 建除萬年曆 vs Pianoisiv

The clearest difference is in-app purchases: Pianoisiv at none against 建除萬年曆's 1. Pianoisiv also leads on update cadence (fortnightly vs every 6 months) and iOS requirement (12.0 vs 15.6). 建除萬年曆's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 建除萬年曆 sells 1 one-off in-app purchase. Pianoisiv asks for nothing beyond the download.

建除萬年曆 ships an update every 6 months, Pianoisiv fortnightly. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 建除萬年曆 | Pianoisiv |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id642692617/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 56 MB | 107 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Chun wai Ho](https://appshunter.io/developer/642692620) | [SOHI PTE. LTD.](https://appshunter.io/developer/1743635906) |

## What reviewers say

### 建除萬年曆

[App page](https://appshunter.io/ios/app/id642692617)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No time Limit | $0.99 | one-time |


### Pianoisiv

[App page](https://appshunter.io/ios/app/pianoisiv/id6504733677)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 建除萬年曆 free?

建除萬年曆 is free to download, with in-app purchases available.

### Is Pianoisiv free?

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

### Do 建除萬年曆 or Pianoisiv have ads?

Pianoisiv shows ads; 建除萬年曆 does not.

### Which is updated more often, 建除萬年曆 or Pianoisiv?

建除萬年曆 ships an update every 6 months, and Pianoisiv fortnightly. Most recently, 建除萬年曆 was updated on November 1, 2026 and Pianoisiv on November 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.*