# Triangle Calc A vs 日付計算

The clearest difference is in-app purchases: Triangle Calc A at none against 日付計算's 1. 日付計算's advantage is update cadence (every 4 months vs every 56 months) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Triangle Calc A costs $0.99 and 日付計算 $0.99 up front. 日付計算 sells 1 one-off in-app purchase. Triangle Calc A asks for nothing beyond the download.

Triangle Calc A ships an update every 56 months, 日付計算 every 4 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Triangle Calc A | 日付計算 |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 4 months** |
| Size | 0 MB | 10 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kohei yamane](https://appshunter.io/developer/1239055575) | [SMART BIT, K.K.](https://appshunter.io/developer/1896559487) |

## What reviewers say

### Triangle Calc A

[App page](https://appshunter.io/ios/app/triangle-calc-a/id1582200016)

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

**In-app purchases:** none


### 日付計算

[App page](https://appshunter.io/ios/app/id6776508989)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全機能アンロック | $2.99 | one-time |


## Frequently asked questions

### Is Triangle Calc A free?

Triangle Calc A costs $0.99, with no in-app purchases.

### Is 日付計算 free?

日付計算 costs $0.99, and also offers in-app purchases.

### Do Triangle Calc A or 日付計算 have ads?

Neither Triangle Calc A nor 日付計算 shows ads.

### Which is updated more often, Triangle Calc A or 日付計算?

Triangle Calc A ships an update every 56 months, and 日付計算 every 4 months. Most recently, Triangle Calc A was updated on October 27, 2026 and 日付計算 on October 24, 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.*