# Twin Calculator vs 電卓&ストップウォッチ

The clearest difference is review sentiment: 電卓&ストップウォッチ at 100% against Twin Calculator's 0%. Twin Calculator's advantage is ads (none vs shown) and update cadence (every 4 months vs every 19 months). On price, in-app purchases and device support there is nothing between them.

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

Twin Calculator ships an update every 4 months, 電卓&ストップウォッチ every 19 months. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Twin Calculator | 電卓&ストップウォッチ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/twin-calculator-multi-function-calculator/id1021097277/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 19 months |
| Monetization | **Free** | Ad-supported |
| Size | 4 MB | 19 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [R.E.O. Factory](https://appshunter.io/developer/435344117) | [Ametiar](https://appshunter.io/developer/1465452317) |

## What reviewers say

### Twin Calculator

[App page](https://appshunter.io/ios/app/twin-calculator-multi-function-calculator/id1021097277)

Perform two calculations simultaneously with this multi-function calculator. It allows for formula display and registration of constants, making complex calculations and tax calculations easier.

**Highlights:** Two calculators for simultaneous calculations, Formula display for clear input, Constant registration for quick access, Supports bracket expressions, Easy tax calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### 電卓&ストップウォッチ

[App page](https://appshunter.io/ios/app/and/id1465452318)

This app combines a stopwatch, numerical counter, and calculator into a single, easy-to-use interface. It allows for simultaneous operation of all three tools, simplifying daily tasks.

**Highlights:** Simultaneous operation, Stopwatch, Numerical counter, Calculator, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Twin Calculator free?

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

### Is 電卓&ストップウォッチ free?

電卓&ストップウォッチ is free to download, with no in-app purchases.

### Do Twin Calculator or 電卓&ストップウォッチ have ads?

電卓&ストップウォッチ shows ads; Twin Calculator does not.

### Which is updated more often, Twin Calculator or 電卓&ストップウォッチ?

Twin Calculator ships an update every 4 months, and 電卓&ストップウォッチ every 19 months. Most recently, Twin Calculator was updated on September 27, 2026 and 電卓&ストップウォッチ on September 23, 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.*