# CALKING vs 電卓

The clearest difference is price: 電卓 at Free against CALKING's $2.99. 電卓 also leads on update cadence (every 6 days vs every 3 weeks). CALKING's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

電卓 is free to download; CALKING costs $2.99 up front. 電卓 sells 3 one-off in-app purchases. CALKING asks for nothing beyond the download.

CALKING ships an update every 3 weeks, 電卓 every 6 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | CALKING | 電卓 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Paid | — |
| Size | 4 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BYKING INC.](https://appshunter.io/developer/341311384) | [Takahiro Kimura](https://appshunter.io/developer/6775796488) |

## What reviewers say

### 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


### 電卓

[App page](https://appshunter.io/ios/app/id6789199382)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Unlock More Styles | $1.99 | one-time |


## Frequently asked questions

### Is CALKING free?

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

### Is 電卓 free?

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

### Do CALKING or 電卓 have ads?

電卓 shows ads; CALKING does not.

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

CALKING ships an update every 3 weeks, and 電卓 every 6 days. Most recently, CALKING was updated on October 31, 2026 and 電卓 on November 1, 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.*