# Basic Calc Plus vs 電卓　水色

The clearest difference is update cadence: Basic Calc Plus at every 17 months against 電卓　水色's every 46 months. 電卓　水色's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Basic Calc Plus ships an update every 17 months, 電卓　水色 every 46 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Basic Calc Plus | 電卓　水色 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 17 months** | Every 46 months |
| Size | 5 MB | 19 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Osamu Ishigami](https://appshunter.io/developer/901265058) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Basic Calc Plus

[App page](https://appshunter.io/ios/app/basic-calc-plus/id926102502)

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

**In-app purchases:** none


### 電卓　水色

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Basic Calc Plus free?

Basic Calc Plus is free to download, with no in-app purchases.

### Is 電卓　水色 free?

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

### Do Basic Calc Plus or 電卓　水色 have ads?

Both Basic Calc Plus and 電卓　水色 show ads.

### Which is updated more often, Basic Calc Plus or 電卓　水色?

Basic Calc Plus ships an update every 17 months, and 電卓　水色 every 46 months. Most recently, Basic Calc Plus was updated on October 3, 2026 and 電卓　水色 on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*