# 電卓　水色 vs CALKING

The clearest difference is price: 電卓　水色 at Free against CALKING's $2.99. 電卓　水色 also leads on iOS requirement (15.0 vs 17.0). CALKING's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 23 months). On in-app purchases and device support there is nothing between them.

電卓　水色 is free to download; CALKING costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

電卓　水色 ships an update every 23 months, CALKING every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 電卓　水色 | CALKING |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 19 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kota tada](https://appshunter.io/developer/1658942612) | [BYKING INC.](https://appshunter.io/developer/341311384) |

## What reviewers say

### 電卓　水色

[App page](https://appshunter.io/ios/app/id1658942610)

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

**In-app purchases:** none


### CALKING

[App page](https://appshunter.io/ios/app/calking/id6763190963)

This app combines a calculator with a notepad, allowing users to save numbers and calculation results instantly. Organize your data with colorful, sticky-note style memos and easily retrieve information for various tasks like budgeting and expense tracking.

**Highlights:** Save calculations instantly, Sticky note style memos, Color-coded organization, Calculate totals by color, Three separate memo boards, Add custom notes to memos

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

**In-app purchases:** none


## Frequently asked questions

### Is 電卓　水色 free?

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

### Is CALKING free?

CALKING costs $2.99, with no in-app purchases.

### Do 電卓　水色 or CALKING have ads?

電卓　水色 shows ads; CALKING does not.

### Which is updated more often, 電卓　水色 or CALKING?

電卓　水色 ships an update every 23 months, and CALKING every 3 weeks. Most recently, 電卓　水色 was updated on October 24, 2026 and CALKING on October 30, 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.*